S-91273A853 M12 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and black oxide finish, ideal for harsh industrial environments.
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity and durability in demanding applications.
• Precision 40mm shoulder length with tight tolerances provides accurate alignment and spacing for components.
• Knurled head design offers enhanced grip for easier manual installation and adjustment without tools.
• Hex socket drive (6mm) allows for secure tool engagement and high torque application, reducing slippage.
• Class 5g6g thread fit guarantees consistent, vibration-resistant connections in metric assemblies.
• Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address common industrial challenges such as misalignment, vibration loosening, and corrosion. The 18-8 stainless steel construction, combined with a black oxide finish, provides excellent resistance to rust and wear, extending service life in machinery, automotive, and assembly fixtures. The precise 40mm shoulder length and Class 5g6g metric thread ensure accurate positioning and secure fastening, reducing maintenance needs. Its hex socket drive and knurled head facilitate quick installation in tight spaces, making it ideal for high-stress applications where reliability is critical.

Specification Summary & Compliance

This shoulder screw features a metric M12x1.75mm coarse thread with Class 5g6g thread fit for standard tolerance. The shoulder diameter is 12 mm with a tolerance of -0.04 to -0.01 mm, and shoulder length is 40 mm with a tolerance of 0 to 0.25 mm. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.