S-92981A156 M16 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capability with 140,000 psi tensile strength and Rockwell C32 hardness for reliable performance in high-stress applications.
• Precision alignment and smooth rotation ensured by the 20mm diameter shoulder with tight diameter tolerance (-0.072 to -0.01 mm) for minimal play.
• Enhanced corrosion resistance from the black oxide finish, prolonging service life in harsh industrial environments.
• Secure and efficient installation using the 10mm hex socket drive, preventing cam-out and allowing high torque application.
• Accurate and consistent threading with M16x2mm coarse pitch and Class 5g6g fit for easy assembly and reliable fastening.
• Broad industrial compliance meeting ISO 7379, RoHS 3, and REACH standards for safety and environmental responsibility.
• Optimized for repetitive use with a smooth head texture and standard shoulder fit, reducing wear and maintenance needs.

Professional Applications & Engineering Value

This M16 shoulder screw is engineered to address critical alignment and durability challenges in precision machinery, automation systems, and heavy-duty equipment. The alloy steel construction, combined with a black oxide finish, provides superior resistance to wear and corrosion, making it ideal for environments exposed to moisture, chemicals, or frequent movement. The precisely machined 20mm shoulder ensures components like bearings, gears, or linkages are accurately positioned, minimizing vibration and misalignment. With a coarse 2mm pitch thread and Class 5g6g fit, it offers quick assembly and reliable clamping force, reducing downtime in production lines. The hex socket drive allows for compact installation in confined spaces, enhancing versatility across automotive, aerospace, and industrial manufacturing applications where strength and precision are paramount.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 specifications, with thread dimensions of M16x2mm and a Class 5g6g thread fit for standardized compatibility. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring high dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for global industrial use.