S-93856A342 M12 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Precise component alignment and positioning thanks to the integral shoulder with controlled diameter tolerance, minimizing assembly play.
• High mechanical strength and reliability with a tensile strength of 70,000 psi and Rockwell B55 hardness for demanding applications.
• Secure, high-torque installation enabled by the 8 mm hex socket drive and knurled head, preventing tool slippage.
• Consistent and reliable thread engagement ensured by the Class 5g6g metric coarse thread (M12x1.75), facilitating easier assembly.
• Versatile shoulder length selection from 6mm to 49.75mm to accommodate various design requirements and spacings.
• Compliance with major environmental regulations (RoHS 3 & REACH), ensuring safety and suitability for global markets.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to solve critical alignment and pivot point challenges in machinery and assemblies. The precision-ground shoulder acts as a reliable datum for locating parts like gears, pulleys, and linkages, eliminating the need for separate spacers and reducing component count. Manufactured from 18-8 Stainless Steel, it offers excellent resistance to rust and corrosion, which is vital for food processing, packaging, and outdoor equipment. The hex socket head with a knurled texture allows for high tightening torque in confined spaces, ensuring the joint remains secure under vibration and load. Its Class 5g6g thread provides a consistent fit, streamlining production and maintenance cycles in automated systems.

Specification Summary & Compliance

This shoulder screw conforms to Metric standards with an M12x1.75 coarse pitch thread and a Class 5g6g thread fit for assured interchangeability. The shoulder diameter features a tight tolerance of -0.072 to -0.01 mm, and the shoulder length tolerance is held to -0.05 to 0.05 mm for precise applications. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.