SEMs Screws Brass SEMs Screws

SEMS Screws Brass SEMS Screws Copper SEMS screws

SEMS Screws of Brass and Copper, Brass SEMS Screws, Copper SEMS Screws

SEMS screws are a unique combination of screws or bolts with permanently attached washers or sets of washers. Also referred to as washer-assembled screws, captivated washers, screw washer assemblies, or combi screws, SEMS screws streamline assembly processes, ensuring faster and more reliable installations.

Our SEMS Screws

The term SEMS originates from the Illinois Tool Works Inc., which pioneered machines capable of producing pre-assembled screws and washers. Today, the term is recognized as a generic reference for screw and washer assemblies. Washers are attached to screws before the threads are rolled, ensuring they remain securely in place due to the larger diameter of the threads compared to the washer’s inner diameter. We specialize in threading screws after installing washers and spring washers in different grades. Our speciality if Brass screws and Copper Screws and machine screws.

Benefits of SEMS Screws

• Faster and easier assembly due to pre-assembled washers.
• Reduced handling and installation time.
• Improved reliability with pre-lubricated parts.

SEMS Screws We Offer

Our SEMS screws are crafted from high-quality Brass and Copper, ensuring durability, resistance to corrosion, and excellent conductivity. Available off the shelf, our screws come in the following head styles and washer types:

Head Styles

• Slotted Pan Head SEMS screws
• Hex Philips Head SEMS screws
• Hex Head SEMS screws
• Hex Washer Head SEMS screws
• Cheese Head SEMS screws
• Pan Philips Head / Pan Combi Head
• Allen Socket Head
• Torx Head

Washer Types

• Internal
• Plain Washer
• Spring Washer
• Internal Tooth Washer
• External Tooth Washer
• Conical Washer
• Square Washer
• Lock Washer / Split Washer

Plain Washers for Screw and Washer Assemblies (SEMS Screws)

Our SEMS screws adhere to various international standards for plain washers, including:

• DIN 6902: Plain Washer for Screw and Washer Assemblies – Types A, B, C
• DIN 6903: Plain Washer for Tapping Screw and Washer Assemblies – Types A, B, C
• DIN EN ISO 10673: Plain Washer for Screw and Washer Assemblies – Types S, N, L
• DIN EN ISO 10669: Plain Washer for Tapping Screw and Washer Assemblies – Types S, N, L
• JIS B 1258: Plain Washer for Screw and Washer Assemblies – Types S, N, L
• DIN 6907: Serrated Lock Washers with External Teeth for Screw and Washer Assemblies
• DIN 6905: Spring Lock Washers for Screw and Washer Assemblies

Why Choose our Brass SEMS screws and Copper SEMS Screws?

Brass SEMs screws and copper SEMS screws made by us at our factory in Jamnagar, India offer excellent corrosion resistance, high durability, and superior conductivity, making them ideal for applications in electrical systems, marine environments, and decorative installations. Their pre-assembled design ensures efficiency and reliability in any project. We can offer super competitive pricing with excellent turnaround time and quality.

Contact us today to learn more about our brass and copper SEMS screws or to place an order.

Q1: What are Sems Screws?
A: Sems Screws are pre-assembled screws that come with a built-in washer, making them ideal for applications requiring secure fastening and vibration resistance. These screws help in reducing assembly time and ensuring consistent performance.

Q2: What are Brass Sems Screws?
A: Brass Sems Screws are high-quality fasteners made from Brass, featuring a pre-attached washer for better grip and load distribution. They offer excellent corrosion resistance, electrical conductivity, and aesthetic appeal, making them ideal for electrical, automotive, and marine applications.

Q3: What are Copper Sems Screws?
A: Copper Sems Screws are fasteners made from Copper, known for their high conductivity, thermal resistance, and anti-microbial properties. They are widely used in electrical connections, HVAC systems, and industrial machinery where superior conductivity is required.

Q4: What are the benefits of using Brass Sems Screws?
A: Brass Sems Screws offer several advantages, including:

• Corrosion Resistance – Ideal for humid and marine environments.
• High Electrical Conductivity – Perfect for electrical components.
• Non-Magnetic Properties – Suitable for sensitive applications.
• Aesthetic Finish – Common in decorative hardware.

Q5: What are the benefits of using Copper Sems Screws?
A: Copper Sems Screws provide the following benefits:

• Superior Electrical Conductivity – Ensures efficient power transmission.
• High Thermal Resistance – Ideal for high-temperature applications.
• Antimicrobial Properties – Useful in medical and food-processing industries.
• Excellent Corrosion Resistance – Performs well in harsh environments.

Q6: What industries use Brass Sems Screws and Copper Sems Screws?
A: These screws are widely used in:

• Electrical and Electronics – Used in circuit boards, terminals, and power distribution panels.
• Automotive and Aerospace – Found in battery terminals and electrical grounding applications.
• Marine and Plumbing – Resistant to rust and corrosion in wet environments.
• Medical and Food Processing – Copper screws are used for their antimicrobial properties.
• Construction and HVAC – Used in heat exchangers and structural applications.

Q7: What types of washers are used with Sems Screws?
A: Sems Screws can be assembled with different types of washers, including:

• Split Lock Washers – Prevent loosening due to vibration.
• Flat Washers – Distribute the load evenly.
• Conical Washers – Provide spring-like tension for secure fastening.
• Tooth Lock Washers – Enhance grip and reduce slipping.

Q8: What thread types are available for Brass Sems Screws and Copper Sems Screws?
A: These screws are available in:

• Metric and Imperial Threads – Different standards for global compatibility.
• Fine and Coarse Threads – Suitable for various torque and strength applications.
• Self-Tapping Threads – Ideal for fastening into softer materials.

Q9: What are the available sizes for Brass Sems Screws and Copper Sems Screws?
A: These screws come in a variety of sizes, ranging from M2 to M12 in metric sizes and #2 to 1/2″ in imperial sizes, with custom options available.

Q10: Are Brass Sems Screws and Copper Sems Screws RoHS compliant?
A: Yes, our Brass and Copper Sems Screws comply with RoHS and REACH regulations, ensuring they are free from hazardous substances.

Q11: Do you offer customized Brass Sems Screws and Copper Sems Screws?
A: Yes, we provide custom manufacturing for Sems Screws based on specific dimensions, head styles, thread types, and plating options.

Q12: What plating options are available for Brass Sems Screws and Copper Sems Screws?
A: We offer various coatings and finishes, including:

• Nickel Plating – Increases durability and corrosion resistance.
• Tin Plating – Common for electrical and soldering applications.
• Silver and Gold Plating – Enhances conductivity for electronic applications.
• Passivation – Improves oxidation resistance.

Q13: How are Brass and Copper Sems Screws different from Stainless Steel Sems Screws?
A: While Brass and Copper Sems Screws are known for their conductivity and corrosion resistance, Stainless Steel Sems Screws provide higher strength and superior rust resistance but lack electrical conductivity.

Q14: What is the minimum order quantity (MOQ) for Brass Sems Screws and Copper Sems Screws?
A: The MOQ depends on the size and customization requirements. We accommodate small prototype orders as well as bulk production.

Q15: Do you provide bulk supply and international shipping?
A: Yes, we cater to bulk orders worldwide, offering secure packaging and reliable logistics for timely delivery.

Q16: Can I request a sample before placing a bulk order?
A: Yes, we provide samples for evaluation to ensure the design and quality meet your requirements before mass production.

Q17: How can I request a quote for Brass Sems Screws or Copper Sems Screws?
A: You can request a custom quote by providing size, quantity, material, plating preferences, and special requirements through our contact form or email.

Q18: Why choose your company for Brass Sems Screws and Copper Sems Screws?
A: We are a trusted manufacturer offering:

• High-quality materials and precision machining.
• Custom design and fast production capabilities.
• ISO-certified quality control and compliance.
• Competitive pricing and global delivery options.