S-90269A117 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Precise alignment and pivot function enabled by the 4mm shoulder diameter with tight tolerance control, reducing component wear.
• High mechanical strength and durability from 70,000 psi tensile strength and Rockwell B79 hardness for reliable performance under load.
• Secure, non-slip fastening with the knurled socket head and 2mm hex drive, allowing for high torque application and easy installation.
• Consistent and reliable thread engagement thanks to the M3 x 0.5mm coarse pitch and Class 5g6g thread fit, ensuring vibration resistance.
• Compliance with strict environmental regulations, being RoHS 3 and REACH compliant for safe use in various global markets.
• Versatile right-hand metric thread design for broad compatibility in machinery, automation, and assembly applications.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address common challenges in precision assemblies, such as misalignment and corrosion-induced failure. Crafted from 316 stainless steel, it offers exceptional resistance to chemicals and moisture, making it suitable for industrial applications in food processing, marine, and chemical equipment. The 4mm shoulder diameter with controlled tolerances provides a stable bearing surface, reducing wear on moving parts and ensuring accurate positioning in precision mechanisms. Combined with the coarse pitch thread and Class 5g6g fit, it delivers secure fastening that withstands vibrations, while the knurled socket head and 2mm hex drive facilitate quick, tool-friendly installation in tight spaces, enhancing overall efficiency and reliability in engineering designs.

Specification Summary & Compliance

This metric shoulder screw features an M3 x 0.5mm coarse pitch thread with a Class 5g6g thread fit for precise tolerance. The shoulder diameter is 4 mm with a tolerance of -0.072 to -0.01 mm, and shoulder length is 5 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial use without hazardous substances.