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Brass Grub Screws, Brass Socket head Grub Screws

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Brass Grub Screws & Brass Socket Head Grub Screws – Premium Quality

Price: US$ 12.90/kilogram

Brass Socket head Screws, Brass Grub Screws, Brass Allen cap screws

We are one of the leading manufacturers and exporters of Brass Grub Screws and Brass Socket Head Grub Screws, Brass Slotted Screws, Brass Socket head cap screws, Brass Allen key screws from India. We have been supplying precision engineered Brass fasteners to the world market for many decades. Our comprehensive range includes cold forged and machined Brass grub screws, socket head cap screws, slotted grub screws, and custom-engineered fastening solutions available in both metric and imperial dimensions. With state-of-the-art manufacturing facilities equipped with advanced CNC machinery, multi-spindle automats, and precision threading equipment, we deliver exceptional quality products that meet international standards including ASTM, DIN, ISO, JIS, and BS specifications. Our expertise spans across various Brass alloys and grades, ensuring optimal performance for diverse industrial applications ranging from automotive and electronics to marine and construction industries. The combination of our technical expertise, quality assurance systems, and customer-centric approach has established us as a trusted partner for businesses worldwide seeking reliable Brass fastening solutions with competitive pricing and consistent delivery schedules.

Product Overview

Brass grub screws, also known as set screws, are headless threaded fasteners designed to secure components against rotational or axial movement without protruding above the surface. These precision-engineered fasteners are manufactured from high-quality Brass alloys, offering excellent corrosion resistance, electrical conductivity, and antimicrobial properties. Available in various head configurations including socket head, slotted, and square head designs, our Brass grub screws cater to diverse industrial requirements.

Our manufacturing capabilities encompass both cold forging and precision machining processes, enabling production of grub screws with superior dimensional accuracy and surface finish. The threading options include roll threading for enhanced strength and cut threading for precise fit applications. Size availability ranges from M2 to M20 in metric dimensions and #2-56 to 1/2″-13 in imperial measurements, accommodating various assembly requirements across different industries.

Brass Grub Screws

Standard Brass grub screws represent the fundamental category of headless fasteners manufactured from premium Brass alloys including C360, C260, and C464 grades. These screws feature a fully threaded body with various drive configurations to suit specific application requirements. The manufacturing process involves precision cold heading or machining operations followed by roll threading or cut threading depending on size and specification requirements. Our Brass grub screws comply with international standards including DIN 913, DIN 914, DIN 915, ASTM F468, and ISO 4026, ensuring compatibility with global fastening systems.

The material selection process considers factors such as mechanical properties, corrosion resistance, and machinability characteristics. Free-cutting Brass grades like C360 provide excellent machinability for complex geometries, while high-strength Brass alloys offer enhanced load-bearing capabilities. Surface treatments include natural Brass finish, nickel plating, chrome plating, and passivation for enhanced corrosion protection. Quality control measures include dimensional verification, thread pitch inspection, torque testing, and material composition analysis to ensure consistent product performance.

Brass Socket Head Screws

Brass socket head screws combine the advantages of socket drive systems with the inherent properties of Brass materials, providing superior torque transmission and aesthetic appeal. These screws feature a cylindrical head with a hexagonal socket drive, allowing for high-torque applications while maintaining a clean, flush appearance when installed. The socket head design enables access in confined spaces and provides better driver engagement compared to traditional slotted or Phillips head configurations.

Manufacturing involves precision machining of Brass bar stock or cold forming processes, followed by secondary operations including socket machining, threading, and quality inspection. The socket dimensions conform to DIN 912, ISO 4762, and ASTM standards, ensuring compatibility with standard hex keys and torque tools. Material grades include lead-free Brass alloys for potable water applications, high-strength Naval Brass for marine environments, and free-cutting Brass for cost-effective solutions. Heat treatment options such as stress relieving and age hardening can be applied to enhance mechanical properties for demanding applications.

Brass Socket Head Grub Screws

Brass socket head grub screws represent the optimal combination of headless design and socket drive technology, providing exceptional functionality for securing applications where traditional headed fasteners are unsuitable. These screws feature a fully threaded body with a hexagonal socket at one end, enabling precise installation torque control while maintaining a flush or sub-flush finish with the mating surface. The socket head grub screw configuration is particularly advantageous in rotating machinery, shaft collars, and precision positioning applications.

Our manufacturing process incorporates advanced CNC machining centers and specialized threading equipment to achieve tight dimensional tolerances and superior surface finish. The socket formation utilizes precision broaching or electrical discharge machining techniques to ensure consistent socket geometry and depth. Thread specifications include fine pitch options for enhanced holding power and coarse pitch variants for rapid engagement. Quality assurance protocols include socket depth measurement, thread gauge inspection, and torque verification testing to guarantee reliable performance in critical applications.

Brass Slotted Grub Screws

Brass slotted grub screws offer a traditional and cost-effective fastening solution with a simple slotted drive configuration that provides reliable performance across numerous industrial applications. The slotted head design allows for installation using standard flat-blade screwdrivers, making these screws highly accessible and user-friendly. Manufacturing processes include both cold heading and machining operations, with slot formation achieved through precision milling or stamping techniques to ensure consistent slot dimensions and depth.

These grub screws are available in various Brass alloys selected for specific application requirements, including corrosion-resistant compositions for outdoor use, antimicrobial grades for food processing equipment, and high-conductivity alloys for electrical applications. Thread options encompass both metric and imperial specifications with standard and fine pitch variants. Surface treatments range from natural Brass finish to specialized coatings including tin plating, silver plating, and organic coatings for enhanced performance characteristics. The slotted configuration provides adequate torque transmission for most applications while maintaining cost-effectiveness compared to socket head alternatives.

Technical Drawing

Socket Head Grub ScrewLength (L)Dia (D)Slotted Grub ScrewLength (L)

Material Grades and Specifications

StandardGrade/AlloyCompositionPropertiesApplications
ASTM B16C360 (Free Cutting Brass)Cu 61.5%, Zn 35.5%, Pb 3%Excellent machinability, good strengthGeneral purpose screws, automotive parts
DIN CuZn39Pb3CW614NCu 58-60%, Zn 37-40%, Pb 2.5-3.5%High machinability, moderate strengthPlumbing fittings, valve components
JIS C3604Brass BarCu 60-63%, Zn 35.5-38%, Pb 2.5-3.7%Good cold workabilityElectronic components, precision parts
ASTM B124C464 (Naval Brass)Cu 59-62%, Zn 37-40%, Sn 0.5-1%Excellent corrosion resistanceMarine applications, chemical industry
BS CZ121Lead Free BrassCu 58%, Zn 39%, Al 2%, As 0.02-0.15%Lead-free, potable water safeWater systems, food industry
IS 319Grade 1 BrassCu 60-63%, Zn remainderStandard mechanical propertiesGeneral engineering applications

Manufacturing Processes and Machinery

Brass Allen head Grub Screws, Manufacturing of Brass socket and Grub screws

Our comprehensive manufacturing capabilities encompass multiple production methodologies to optimize cost, quality, and delivery for different volume requirements. Cold forging operations utilize high-tonnage mechanical and hydraulic presses ranging from 25 to 200 tons capacity, enabling production of grub screws with superior grain structure and enhanced mechanical properties. The cold heading process involves progressive die forming stages that shape the Brass material while maintaining tight dimensional tolerances and excellent surface finish characteristics.

Precision machining operations employ state-of-the-art CNC turning centers, multi-spindle automatic lathes, and Swiss-type screw machines to produce complex geometries and tight tolerance components. Our machining centers include brands such as Citizen, Star, and Tsugami with capabilities for simultaneous multi-axis operations, live tooling, and sub-spindle functionality. Thread production utilizes both roll threading and cut threading processes, with thread rolling providing superior strength characteristics through work hardening, while cut threading offers precise dimensional control for critical applications.

Secondary operations include socket machining using precision broaching machines and electrical discharge machining equipment for complex socket geometries. Heat treatment facilities provide stress relieving, annealing, and age hardening capabilities to optimize material properties. Quality control equipment includes coordinate measuring machines, optical comparators, thread gauges, and hardness testers to ensure compliance with international standards and customer specifications.

Dimensional Specifications Table

Thread SizePitch (mm)Socket SizeLength Range (mm)Head Diameter (mm)Imperial Equivalent
M20.41.5mm Hex3-202.0#2-56
M30.52.0mm Hex4-303.0#4-40
M40.73.0mm Hex5-404.0#6-32
M50.84.0mm Hex6-505.0#8-32
M61.05.0mm Hex8-606.0#10-24
M81.256.0mm Hex10-808.05/16″-18
M101.58.0mm Hex12-10010.03/8″-16
M121.7510.0mm Hex15-12012.01/2″-13

Material Properties

PropertyC360 Free CuttingC464 Naval BrassCW614N EuropeanTest Method
Tensile Strength470-550 MPa380-520 MPa450-600 MPaASTM B557
Yield Strength310-380 MPa170-310 MPa200-450 MPaASTM B557
Elongation8-23%15-35%12-35%ASTM B557
Hardness85-125 HB65-110 HB90-140 HBASTM E10
Density8.5 g/cm³8.4 g/cm³8.5 g/cm³ASTM B311
Electrical Conductivity26% IACS22% IACS28% IACSASTM B193
Thermal Conductivity115 W/m·K110 W/m·K120 W/m·KASTM E1461

Manufacturing Process Flow

Raw Material → Cold Forging/Machining → Threading → Quality Control → Finishing → Packaging

4-6 Weeks Standard Delivery | ISO Certified Process

Industries and Applications

Our Brass grub screws serve critical functions across diverse industrial sectors, leveraging the unique properties of Brass alloys to deliver optimal performance in challenging environments. Automotive industry applications include engine components, transmission assemblies, brake systems, and electrical connections where Brass grub screws provide reliable fastening with excellent corrosion resistance and electrical conductivity. The antimicrobial properties of Brass make these fasteners particularly suitable for interior components and touch surfaces.

Electronics and electrical equipment manufacturers utilize our precision Brass grub screws for circuit board assemblies, connector systems, switch mechanisms, and grounding applications. The excellent electrical conductivity of Brass ensures reliable electrical connections while providing electromagnetic shielding capabilities. Marine and offshore applications benefit from the superior corrosion resistance of Naval Brass alloys, making our grub screws ideal for shipbuilding, port equipment, and underwater instrumentation systems.

Construction and architectural hardware applications include door hardware, window mechanisms, HVAC systems, and decorative fixtures where the aesthetic appeal of Brass complements functional requirements. The food processing and pharmaceutical industries rely on lead-free Brass grub screws for equipment assemblies requiring FDA compliance and antimicrobial properties. Precision instrument manufacturing, telecommunications equipment, and renewable energy systems represent additional growth sectors utilizing our advanced Brass fastening solutions.

Quality Standards and Tolerances

Our quality management system operates under ISO 9001:2015 certification, ensuring consistent product quality and continuous improvement processes. Dimensional tolerances are maintained according to international standards with thread tolerances conforming to ISO 965, DIN 13, and ANSI B1.1 specifications. Standard tolerance classes include 6g for external threads and 6H for internal applications, with tighter tolerances available for precision applications requiring 4g or 5g classifications.

ParameterStandard TolerancePrecision ToleranceMeasurement Method
Thread Pitch Diameter±0.075mm±0.025mmThread micrometer
Overall Length±0.1mm±0.05mmDigital calipers
Socket Depth±0.1mm±0.03mmDepth gauge
Head Diameter±0.08mm±0.02mmOptical comparator
Surface RoughnessRa 1.6μmRa 0.8μmProfilometer

Performance Metrics and Testing

Comprehensive testing protocols ensure our Brass grub screws meet or exceed specified performance requirements across various operational parameters. Mechanical testing includes tensile strength verification, proof load testing, and hardness measurement using standardized procedures. Torque testing evaluates installation and breakaway torque values to ensure consistent clamping performance, while fatigue testing assesses long-term reliability under cyclic loading conditions.

Corrosion resistance testing follows ASTM B117 salt spray standards with minimum 240-hour exposure requirements for standard grades and extended 720-hour testing for marine applications. Thread functionality testing includes go/no-go gauge verification and thread engagement testing to ensure proper fit with mating components. Material composition verification through optical emission spectroscopy confirms alloy compliance and trace element control for specialized applications.

Turnaround Time and Production Capacity

Standard Production Lead Time: 4-6 Weeks

Our streamlined production processes and efficient supply chain management enable consistent delivery within the 4-6 week timeframe for standard specifications. Rush orders can be accommodated with expedited production schedules for critical applications, while custom specifications may require additional lead time for tooling and setup requirements.

Production capacity utilizes multiple manufacturing lines with flexibility to scale volume based on customer requirements. Our inventory management system maintains strategic stock levels of common sizes and specifications to reduce delivery times for frequently ordered items. Weekly production capacity exceeds 2 million pieces across all size ranges, with the ability to prioritize urgent orders through our flexible scheduling system. Advanced planning software integrates customer forecasts with production schedules to optimize efficiency and minimize lead times.

Surface Finishes and Treatments

Natural Brass finish provides the standard appearance with inherent antimicrobial properties and moderate corrosion resistance suitable for indoor applications. This finish maintains the characteristic golden appearance of Brass while allowing for natural patina development over time. Nickel plating offers enhanced corrosion protection and wear resistance, particularly beneficial for outdoor applications and high-humidity environments. The electroplating process provides uniform coverage with thickness control ranging from 5 to 25 microns.

Chrome plating delivers superior hardness and wear resistance with excellent chemical resistance properties, making it ideal for harsh chemical environments and high-wear applications. Tin plating provides excellent solderability for electronic applications while maintaining corrosion resistance. Specialized treatments include passivation for enhanced corrosion resistance, silver plating for high electrical conductivity applications, and organic coatings for specific environmental requirements.

Finish TypeThicknessPropertiesApplicationsStandard
Natural BrassAntimicrobial, moderate corrosion resistanceGeneral purpose, decorativeASTM B36
Nickel Plate8-15 μmHigh corrosion resistance, wear resistantOutdoor, marine applicationsASTM B689
Chrome Plate10-25 μmExtreme hardness, chemical resistanceChemical processing, high wearASTM B177
Tin Plate5-12 μmExcellent solderabilityElectronic assembliesASTM B545
Silver Plate3-8 μmHigh electrical conductivityElectrical contactsASTM B700

Frequently Asked Questions

Q1: What is the difference between cold forged and machined Brass grub screws?
Cold forged grub screws offer superior grain structure and mechanical properties due to work hardening during the forming process, making them ideal for high-strength applications. Machined grub screws provide tighter dimensional tolerances and are better suited for precision applications requiring exact specifications.

Q2: Can you provide lead-free Brass grub screws for potable water applications?
Yes, we manufacture lead-free Brass grub screws using NSF-certified alloys that comply with Safe Drinking Water Act requirements. These screws meet NSF/ANSI 61 standards for potable water contact applications.

Q3: What are the advantages of roll threading versus cut threading?
Roll threading provides approximately 30% higher tensile strength due to grain flow orientation and work hardening, making it preferred for high-stress applications. Cut threading offers superior dimensional accuracy and is required for fine-pitch threads or when thread relief is necessary.

Q4: Do you offer custom socket sizes for specialized tooling requirements?
Yes, we can manufacture grub screws with custom socket configurations including Torx, square drive, and proprietary geometries. Minimum order quantities apply for custom tooling requirements, and additional lead time is required for tool development.

Q5: What is the maximum torque specification for your socket head grub screws?
Maximum torque values vary by size and material grade. For example, M6 socket head grub screws in C360 Brass typically handle 8-12 Nm installation torque, while larger sizes can accommodate proportionally higher values. Detailed torque specifications are provided with technical drawings.

Q6: Can you supply grub screws with thread locking compounds pre-applied?
Yes, we can apply various thread locking compounds including medium-strength anaerobic adhesives and removable formulations. The application process is performed in controlled environments to ensure consistent coverage and curing.

Q7: What quality certifications do you provide with shipments?
Each shipment includes material test certificates showing chemical composition, mechanical properties, and dimensional verification data. Additional certifications such as NACE MR-01-75 for sour service applications can be provided upon request.

Q8: How do you handle mixed material requirements in single orders?
Our flexible production systems can accommodate multiple Brass grades within single orders. Each material grade is clearly segregated during production and packaging, with individual identification and certification provided for traceability.

Q9: What is your minimum order quantity for standard sizes?
Standard minimum order quantities range from 1,000 pieces for common sizes to 5,000 pieces for specialty configurations. Sample quantities and development orders can be supplied in smaller volumes to support prototyping and testing requirements.

Q10: Do you provide technical support for fastener selection and application engineering?
Our technical team provides comprehensive application support including material selection guidance, torque specifications, and installation recommendations. We can also assist with custom design requirements and compatibility assessments for specific applications.

Q11: Can you manufacture grub screws with modified point configurations?
Yes, we offer various point styles including cup point, cone point, oval point, and flat point configurations. Custom point geometries can be manufactured to optimize performance for specific clamping or positioning applications.

Q12: What testing capabilities do you have for material verification?
Our laboratory facilities include optical emission spectroscopy for composition analysis, universal testing machines for mechanical properties, coordinate measuring machines for dimensional verification, and specialized equipment for hardness, corrosion, and surface finish testing.

“We have been sourcing Brass socket head grub screws from this manufacturer for over eight years, and their consistency in quality and delivery has been exceptional. The technical support team helped us optimize our fastener selection for our marine instrumentation products, resulting in improved field reliability and reduced maintenance costs. Their ability to provide custom packaging with our part numbers has streamlined our inventory management significantly.”

– Robert Mitchell, Procurement Manager, Florida, USA

Why Choose Our Brass Grub Screws

Three Decades of Global Experience: Our expertise spans over 30 years in precision Brass fastener manufacturing, serving customers across 45+ countries with consistent quality and reliability.

Advanced Manufacturing Capabilities: State-of-the-art production facilities equipped with the latest CNC machinery, automated quality control systems, and flexible production lines enable us to meet diverse customer requirements efficiently. Our investment in technology ensures competitive pricing while maintaining superior quality standards.

Faster Turnaround Times: Streamlined production processes and strategic inventory management deliver standard orders within 4-6 weeks, with expedited options available for urgent requirements. Our production planning system optimizes scheduling to minimize lead times while maintaining quality standards.

Superior Customer Support: Dedicated technical support team provides comprehensive application engineering assistance, material selection guidance, and problem-solving expertise. Our customer service representatives maintain regular communication throughout the order process, providing real-time updates and proactive issue resolution.

Global Communication Excellence: Multilingual support staff and comprehensive technical documentation in multiple languages ensure clear communication across international markets. Our export documentation team handles all compliance requirements for seamless international transactions.

Customization Flexibility: Extensive customization capabilities include non-standard dimensions, special alloy compositions, unique packaging requirements, and customer-specific marking or labeling. Our engineering team works closely with customers to develop optimal solutions for challenging applications.

Comprehensive Quality Assurance: ISO 9001:2015 certified quality management system ensures consistent product quality through rigorous testing and inspection protocols. Complete traceability from raw material to finished product provides confidence in critical applications.

International Standards Compliance

StandardDescriptionApplicationCompliance Level
DIN 913Socket head grub screws with flat pointEuropean marketsFull compliance
DIN 914Socket head grub screws with cone pointPrecision positioningFull compliance
ISO 4026Socket head grub screwsInternational standardCertified
ASTM F468Nonferrous fastener specificationsNorth American marketsFull compliance
JIS B1177Socket head grub screwsJapanese industrial standardsCertified
BS 4168Socket head grub screwsBritish standardsFull compliance
IS 5372Socket head grub screwsIndian standardsBIS approved

Packaging and Shipping

Standard Packaging Options: Our packaging systems are designed to protect product integrity during transportation while facilitating efficient handling and inventory management. Standard packaging includes plastic containers with foam inserts for small quantities, corrugated boxes with partitioned trays for medium volumes, and bulk packaging in moisture-resistant containers for large quantities. All packaging materials meet international shipping regulations and environmental standards.

Customized Packaging Solutions: We offer extensive packaging customization including customer-specific labeling with part numbers, logos, and technical specifications. Custom packaging configurations can accommodate unique storage requirements, automated assembly systems, and specific handling protocols. Specialized packaging for sensitive applications includes anti-static materials, corrosion-inhibiting papers, and climate-controlled containers.

Global Shipping Capabilities: Comprehensive logistics network provides efficient shipping to worldwide destinations through established partnerships with major freight carriers. Export documentation includes commercial invoices, packing lists, certificates of origin, and material test certificates. Specialized shipping options include expedited air freight for urgent orders, consolidated sea freight for cost-effective large shipments, and door-to-door delivery services.

Inventory Management Support: Vendor-managed inventory programs help customers optimize stock levels and reduce carrying costs through demand forecasting and automated replenishment systems. Consignment inventory options provide immediate availability while minimizing customer investment. Just-in-time delivery programs synchronize shipments with production schedules to reduce inventory requirements.

Unique Selling Propositions

Manufacturing Flexibility: Our production systems accommodate both high-volume standard production and low-volume custom manufacturing requirements. Flexible tooling systems enable rapid changeovers between different specifications without compromising quality or delivery schedules. Investment in advanced manufacturing technology ensures competitive cost structures while maintaining superior quality standards.

Global Supply Chain Expertise: Three decades of international business experience provides deep understanding of global market requirements, regulatory compliance, and cultural considerations. Established supplier relationships ensure consistent raw material quality and availability, while strategic inventory positioning minimizes supply chain disruptions.

Technical Innovation: Continuous investment in research and development drives innovation in materials, manufacturing processes, and product design. Collaboration with customers on new product development leverages our technical expertise to create optimized solutions for emerging applications and challenging requirements.

Environmental Responsibility: Commitment to sustainable manufacturing practices includes waste minimization, energy efficiency optimization, and environmentally responsible material selection. Lead-free Brass options support customer sustainability initiatives while maintaining performance requirements.

Glossary of Terms

Cold Forging: Manufacturing process that shapes Brass material at room temperature using high-pressure forming operations, resulting in improved grain structure and mechanical properties through work hardening effects.

Cut Threading: Thread production method using cutting tools to remove material and form thread profiles, providing precise dimensional control and smooth surface finish characteristics for critical applications.

Grub Screw: Headless threaded fastener designed to secure components against movement without protruding above the surface, also known as set screws or headless cap screws in various markets.

Naval Brass: Copper-zinc alloy containing tin additions for enhanced corrosion resistance, particularly suitable for marine environments and chemical processing applications requiring superior durability.

Roll Threading: Thread forming process that displaces material to create thread profiles without removing material, resulting in stronger threads through work hardening and improved grain flow orientation.

Socket Head: Fastener head design featuring internal hexagonal drive configuration, enabling high torque transmission and access in confined spaces while maintaining aesthetic appearance when installed.

Thread Pitch: Distance between adjacent thread crests measured parallel to the thread axis, determining thread engagement characteristics and load-bearing capacity of threaded connections.

Tensile Strength: Maximum stress that material can withstand while being stretched before failure, expressed in megapascals (MPa) and critical for determining fastener load capacity and safety factors.

Related Terms-

Primary  terms: Brass grub screws, socket head grub screws, Brass set screws, headless cap screws, Brass socket screws, slotted grub screws, cup point grub screws, cone point set screws

Material-Related Terms: Free cutting Brass screws, Naval Brass fasteners, lead-free Brass hardware, C360 Brass screws, C464 Brass fasteners, CW614N grub screws, antimicrobial Brass screws

Manufacturing Terms: Cold forged Brass screws, machined Brass fasteners, roll threaded grub screws, cut threaded set screws, precision Brass hardware, CNC machined screws

Application-Specific Terms: Marine grade grub screws, automotive Brass fasteners, electronic Brass screws, food grade Brass hardware, architectural Brass fasteners, precision instrument screws

Size and Specification Terms: Metric grub screws, imperial set screws, M3 Brass screws, M6 socket head screws, #10-24 grub screws, 1/4-20 set screws, fine thread grub screws

International Market Terms: DIN 913 grub screws, ISO 4026 socket screws, JIS B1177 set screws, ASTM F468 Brass fasteners, BS 4168 socket head screws, Indian standard grub screws

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📧 Email: sales@conexscrews. com

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