S-90323A476 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments.
• Precise component alignment ensured by the accurately machined 8mm shoulder diameter with tight tolerance for reliable positioning.
• High-strength performance offering 80,000 psi tensile strength and Rockwell B95 hardness for demanding mechanical applications.
• Space-saving low-profile socket head with 4mm hex drive allows for installation in confined spaces while providing secure torque transmission.
• Reliable thread engagement with Class 6g metric thread fit and coarse pitch for quick assembly and vibration resistance.
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in global industrial markets.
• Dimensional stability from controlled shoulder length and diameter tolerances, minimizing play in precision assemblies.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment challenges in industrial machinery, automation systems, and precision instruments. The 18-8 stainless steel material, enhanced by a passivated finish, provides excellent resistance to oxidation and chemical exposure, reducing maintenance needs. The low-profile socket head design allows for flush mounting in compact designs, while the precise shoulder diameter acts as a pivot or locating feature, eliminating misalignment in rotating parts and linkages. With its Class 6g thread fit and coarse thread pitch, it ensures rapid installation and secure fastening under dynamic loads, making it ideal for precision grade applications where repeatability and durability are paramount.

Specification Summary & Compliance

This metric shoulder screw adheres to standard dimensional and thread specifications, including M6x1mm thread size with Class 6g tolerance for consistent fit. The shoulder features an 8mm diameter with -0.025 to 0 mm tolerance and 5mm length with 0 to 0.05 mm tolerance, ensuring precise assembly. 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 industrial sectors.