S-90269A758 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction, ideal for marine, chemical, and outdoor applications.
• Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, ensuring reliable performance under high stress and load.
• Precise component alignment and spacing enabled by the 16mm shoulder with controlled diameter and length tolerances for reduced assembly errors.
• Enhanced grip and tool engagement from the knurled socket head and 6mm hex drive, preventing slippage during installation and removal.
• Accurate and durable thread engagement with a Class 5g6g metric coarse thread (M8x1.25), offering consistent fit and resistance to loosening.
• Long-lasting surface protection with a black oxide finish that adds an extra layer of corrosion and wear resistance.
• Compliance with strict environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global industrial markets.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical challenges in precision assembly and harsh operating conditions. The 316 stainless steel material provides excellent resistance to corrosion from chemicals, saltwater, and extreme temperatures, making it ideal for industrial applications in machinery, automotive, and marine equipment. The 16mm shoulder length and precise diameter tolerances ensure accurate alignment of components like gears, pulleys, and linkages, reducing wear and vibration. Combined with the black oxide finish and Class 5g6g thread fit, it delivers reliable, long-term performance in high-stress environments, minimizing maintenance needs and downtime.

Specification Summary & Compliance

This shoulder screw features a Metric M8x1.25 coarse thread with a Class 5g6g thread fit for precise tolerance. The shoulder diameter is 12 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 16 mm with a tolerance of 0 to 0.25 mm. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial use.