S-91273A475 M12 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing replacement frequency.
• Enhanced grip and tool engagement from the knurled hex socket head, preventing slippage during installation and removal.
• High mechanical strength and durability with a tensile strength of 70,000 psi and Rockwell B55 hardness, ensuring reliable performance under heavy loads.
• Precise alignment and spacing provided by the 60mm long, 12mm diameter shoulder with tight tolerances, critical for accurate assembly in machinery.
• Easy and quick installation with a coarse M12x1.75 thread and Class 5g6g fit, facilitating faster assembly in industrial applications.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in global markets and reducing legal risks.
• Versatile metric design with standard socket head profile, compatible with common 6mm hex tools for broad application across industries.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address critical alignment and strength challenges in precision assemblies. The 18-8 stainless steel material offers excellent resistance to corrosion and oxidation, making it suitable for demanding environments like automotive, robotics, and food processing equipment where moisture and chemicals are present. The 60mm shoulder length and precise 12mm shoulder diameter provide a stable pivot or spacer, reducing wear on moving parts and ensuring accurate component positioning. Combined with the coarse thread and hex socket drive, it allows for efficient installation in high-vibration settings, minimizing downtime. This precision shoulder screw delivers long-term reliability, supporting heavy-duty applications without compromising on RoHS 3 and REACH compliance for sustainable operations.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M12x1.75 coarse thread and Class 5g6g thread fit for consistent dimensional accuracy. The shoulder features a diameter of 12 mm with a tolerance of -0.04 to -0.01 mm and a length of 60 mm with a tolerance of 0 to 0.25 mm, ensuring precise engineering fits. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for international industrial use.