S-91273A813 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 ensured by a 40mm shoulder with tight ±0.25mm length tolerance
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding applications
• Enhanced durability and wear resistance from the black oxide finish and Rockwell B55 hardness
• Secure and efficient installation using a standard 3mm hex socket drive and knurled head for improved grip
• Reliable thread performance with M6x1mm coarse thread and Class 5g6g fit for consistent fastening
• Compliance with environmental regulations, meeting RoHS 3 and REACH standards for global use

Professional Applications & Engineering Value

This precision shoulder screw is engineered to solve critical alignment challenges in machinery, automation, and assembly systems. The 40mm shoulder length with minimal tolerance provides a stable pivot or spacer, reducing wear and misalignment in rotating parts. Made from 18-8 stainless steel with a black oxide finish, it resists corrosion and oxidation, extending service life in demanding conditions. The M6x1mm coarse thread and Class 5g6g fit ensure quick, secure fastening, while the hex socket head and knurled texture allow for easy installation with standard tools. Ideal for industrial applications like pivots, guides, and fixtures, this screw enhances equipment reliability and reduces maintenance needs.

Specification Summary & Compliance

This shoulder screw features an M6x1mm coarse thread with Class 5g6g thread fit, a shoulder diameter of 6mm with tolerance of -0.04 to -0.01 mm, and shoulder length of 40mm with ±0.25mm tolerance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and suitable for global industrial use.