S-91273A386 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Enhanced torque application via 2.5 mm hex socket drive and knurled head for secure, slip-resistant fastening.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing applications.
• Precision thread fit with Class 5g6g coarse pitch (M5 x 0.8 mm) ensuring smooth assembly and vibration resistance.
• Accurate shoulder dimensions with tight diameter and length tolerances for consistent alignment in machinery and pivots.
• Durable performance backed by Rockwell B55 hardness, resisting wear and deformation under stress.
• Compliance assurance meeting RoHS 3 and REACH standards for safe, environmentally responsible usage.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address common assembly challenges in precision industries. The 18-8 stainless steel material provides excellent resistance to rust and chemicals, making it suitable for automotive, electronics, and food processing equipment where cleanliness and durability are critical. The hex socket head with knurled texture allows for high-torque installation without tool slippage, reducing installation time and damage risks. With a coarse thread pitch and Class 5g6g thread fit, it ensures quick, secure fastening in components requiring exact alignment, such as rotating shafts, bearings, and linkages. The integrated shoulder offers stable positioning, minimizing part movement and wear, which enhances the longevity and reliability of your mechanical systems.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with M5 x 0.8 mm coarse threads and Class 5g6g thread fit for precise tolerance. Shoulder diameter tolerance is -0.04 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring consistent performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material restrictions adherence.