S-93856A352 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 ensured by the 16mm shoulder diameter with tight tolerance, reducing wear and simplifying assembly.
• High-strength performance offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing in demanding applications.
• Secure, high-torque installation enabled by the 8mm hex socket drive and knurled head, preventing tool slippage.
• Consistent thread engagement with Class 5g6g metric coarse thread (M12 x 1.75mm), ensuring reliable fastening and interchangeability.
• Versatile shoulder length options from 50mm to 99.75mm, providing design flexibility for various spacing and pivoting needs.
• Compliance with strict environmental regulations including RoHS 3 and REACH, making them suitable for global supply chains.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, which is vital for machinery operating in humid or chemically aggressive settings. The precision 16mm shoulder diameter acts as a built-in pivot or bearing surface, eliminating the need for additional bushings and reducing assembly time and component count. Combined with the Class 5g6g thread fit and coarse pitch, it ensures quick assembly and high vibration resistance, making it ideal for moving parts in automation equipment, conveyor systems, and jigs. The hex socket head with knurling allows for clean, high-torque installation in confined spaces, enhancing both performance and maintenance efficiency.

Specification Summary & Compliance

This shoulder screw conforms to metric system standards with an M12 x 1.75mm coarse right-hand thread and Class 5g6g thread fit for precise tolerance. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is -0.05 to 0.05 mm, ensuring high dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for regulated industrial and international markets.