S-91273A463 M12 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and extending service life.
• High strength and durability offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under heavy loads.
• Precise shoulder fit with a 12mm diameter and tight tolerance (-0.04 to -0.01mm) ensuring accurate alignment and reduced wear in assemblies.
• Easy installation and removal thanks to the knurled hex socket head and 6mm drive, providing a secure grip and minimizing tool slippage.
• Consistent thread performance with Class 5g6g metric coarse thread (M12x1.75mm) for quick assembly and vibration resistance.
• Versatile industrial use supported by a robust 8mm shoulder length, enabling smooth rotation and spacing in machinery and fixtures.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered from 18-8 Stainless Steel to address common industrial challenges like corrosion, misalignment, and mechanical stress. The hex socket head with knurling ensures easy torque application in tight spaces, reducing installation time and tool wear. Its Class 5g6g coarse thread and precise shoulder diameter with minimal tolerance enhance stability in dynamic applications, such as rotating assemblies, jigs, and automotive components. By providing a reliable shoulder fit and high tensile strength, it minimizes part movement and extends equipment lifespan, making it a cost-effective solution for precision engineering and industrial fastening needs.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with a Class 5g6g thread fit for consistent engagement. Dimensions include an M12x1.75mm coarse thread, 18mm thread length, and 8mm shoulder length with a tolerance of 0 to 0.25mm. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory alignment for industrial use.