S-91273A403 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and reducing replacement frequency.
• High mechanical strength offering 70,000 PSI tensile and 35,000 PSI minimum shear strength for reliable performance under load.
• Precise component alignment enabled by the standard shoulder with controlled diameter and length tolerances, minimizing assembly play.
• Secure and efficient installation with the 3mm hex socket drive and knurled head texture, providing excellent grip and preventing tool slippage.
• Consistent thread engagement ensured by the Class 5g6g thread fit and M6x1mm coarse pitch, facilitating quick assembly and disassembly.
• Environmental and regulatory compliance with RoHS 3 and REACH standards, ensuring safety and suitability for global markets.
• Durable and wear-resistant material with Rockwell B55 hardness, maintaining integrity through repeated use.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and fastening challenges in precision assemblies. The 18-8 Stainless Steel provides excellent corrosion resistance, making it suitable for applications in machinery, automation, and outdoor equipment where exposure to moisture or chemicals is a concern. The hex socket drive and knurled head ensure secure torque application, reducing the risk of stripping during installation. With a Class 5g6g thread and coarse pitch, it offers reliable threading in metals and plastics, minimizing cross-threading risks. The precisely machined shoulder acts as a pivot or spacer, maintaining accurate positioning in rotating parts like gears and pulleys, thereby enhancing overall system longevity and reducing maintenance downtime in industrial applications.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M6x1mm coarse right-hand thread and Class 5g6g thread fit for precise tolerance. The shoulder diameter is 6 mm with a tolerance of -0.04 to -0.01 mm, and shoulder length is 8 mm with a tolerance of 0 to 0.25 mm, ensuring consistent performance. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industries.