S-91273A404 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Enhanced assembly grip and torque application provided by the knurled hex socket head, reducing tool slippage and improving operator safety.
• High mechanical strength and durability with a tensile strength of 70,000 psi and Rockwell B55 hardness, ensuring reliable performance under load.
• Precise component alignment and spacing enabled by the 10mm shoulder with controlled diameter and length tolerances for consistent assembly.
• Reliable thread engagement and interchangeability guaranteed by the Class 5g6g metric thread with a coarse 1mm pitch for faster installation.
• Broad industrial compliance meeting RoHS 3 and REACH regulations, ensuring material safety and environmental responsibility.
• Optimized for high-shear applications with a minimum shear strength of 35,000 psi, suitable for pivots, axles, and rotating assemblies.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address common challenges in precision assembly, such as misalignment and component wear. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it suitable for applications in machinery, automotive, and electronics where exposure to moisture or chemicals is a concern. The knurled hex socket head ensures a secure grip during installation, minimizing the risk of stripping and allowing for high-torque fastening. The 10mm shoulder length with tight tolerances provides a precise locating surface for gears, bearings, or linkages, reducing vibration and improving overall system accuracy. With its Class 5g6g thread fit and coarse pitch, it enables quick and reliable fastening in high-volume production environments, enhancing efficiency and reducing downtime.

Specification Summary & Compliance

This shoulder screw features a metric M6x1mm coarse pitch thread with a Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance is -0.04 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm, providing precise control for engineering applications. Manufactured from 18-8 stainless steel with a hardness of Rockwell B55, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for restricted substance-controlled industries.