S-91313A116 M3 x 3 mm Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Excellent vibration resistance due to serrated locking design, preventing loosening under dynamic loads.
• Precise torque transmission with 1.5mm hex drive, enabling secure installation in confined spaces.
• Optimized thread engagement through Class 6g fit and coarse M3x0.5mm threads, providing consistent clamping force.
• Enhanced surface durability with Rockwell B80 hardness, maintaining dimensional stability under mechanical stress.
• Secure component positioning using cup tip design, minimizing damage to mating surfaces during installation.
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use across global markets.

Professional Applications & Engineering Value

This M3 set screw delivers critical engineering solutions for precision assemblies requiring compact, high-strength fastening. The 18-8 stainless steel material provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor conditions. Its headless design with hex drive enables flush mounting in space-constrained applications while maintaining high torque capability. The coarse metric threads (M3x0.5mm) with Class 6g tolerance ensure reliable engagement in both through-holes and blind tapped holes, reducing cross-threading risks. Combined with serrations for locking and cup tip configuration, this fastener prevents rotational slippage in pulleys, gears, and collars—making it ideal for automotive, electronics, and industrial equipment where vibration resistance is paramount.

Specification Summary & Compliance

This precision metric set screw features M3 diameter with 0.5mm coarse pitch threads manufactured to Class 6g tolerance for consistent fit. The right-hand threaded fastener meets standard metric threading specifications with 3mm length and cup tip configuration. Manufacturing complies with international regulatory standards including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, ensuring environmental safety and material traceability for industrial applications worldwide.