S-91273A416 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.
• Precise component alignment and pivot points ensured by the 50mm shoulder with tight diameter and length tolerances for reliable assembly.
• High mechanical strength and durability from Rockwell B55 hardness and 70,000 psi tensile strength, supporting demanding applications.
• Secure, non-slip fastening provided by the knurled socket head and 3mm hex drive, allowing for high torque application without stripping.
• Wide compatibility and easy installation with M6x1mm coarse metric thread and Class 5g6g fit, ensuring smooth engagement with standard nuts.
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards, making it safe for various industrial and export markets.
• Reliable shear strength of 35,000 psi minimum, providing added safety in dynamic or load-bearing assemblies.

Professional Applications & Engineering Value

This precision shoulder screw is engineered to address critical alignment and rotational requirements in machinery and equipment. The 50mm shoulder length with controlled tolerances (-0.04 to -0.01mm diameter, 0 to 0.25mm length) allows for exact positioning of components like gears, bearings, and linkages, minimizing play and vibration. Made from 18-8 stainless steel, it offers excellent resistance to rust and corrosion, extending service life in moist or chemical-exposed settings. The M6x1mm coarse thread with Class 5g6g fit ensures quick, reliable fastening, while the knurled socket head and 3mm hex drive enable secure tool engagement, reducing installation time and risk of damage. Ideal for use in automation, automotive, and electronics assembly, this screw provides consistent performance where precision and durability are paramount.

Specification Summary & Compliance

This M6 shoulder screw adheres to metric standards with a thread size of M6x1mm coarse and Class 5g6g thread fit for precise engagement. Shoulder diameter tolerance is -0.04 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring high dimensional accuracy. Manufactured from 18-8 stainless steel with a hardness of Rockwell B55 and tensile strength of 70,000 psi, it meets industry demands for strength and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial applications.