S-91273A401 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Precise component alignment enabled by the 6mm shoulder diameter with tight tolerance for stable assemblies.
• High-strength performance offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing applications.
• Secure and efficient installation with a knurled hex socket head and 3mm drive, reducing slippage during tightening.
• Accurate thread engagement through Class 5g6g metric coarse threads, ensuring consistent fastening in high-vibration settings.
• Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries.
• Optimized durability with a 1mm coarse pitch and 11mm thread length, providing strong holding power in dynamic applications.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address common industrial challenges such as misalignment and component wear in machinery. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it suitable for applications in automotive, electronics, and manufacturing equipment. The hex socket head with knurling ensures a firm grip during assembly, reducing tool slippage and improving worker safety. With a 6mm shoulder diameter and precise tolerances, it provides a stable pivot or spacer in rotating assemblies, minimizing play and extending service life. The Class 5g6g thread and coarse pitch enhance reliability in high-vibration environments, ensuring long-term performance without loosening. This precision shoulder screw is ideal for use in jigs, fixtures, and conveyor systems where accuracy and durability are critical.

Specification Summary & Compliance

This shoulder screw adheres to metric thread standards with an M6x1mm coarse thread and Class 5g6g thread fit for consistent dimensional accuracy. The shoulder diameter tolerance is -0.04 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications. Manufactured to high standards, it meets specified mechanical properties including a tensile strength of 70,000 psi and shear strength of 35,000 psi.