S-92981A157 M16 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity: With a tensile strength of 140,000 PSI and a minimum shear strength of 84,000 PSI, this screw provides reliable performance in high-stress applications, reducing the risk of mechanical failure.
• Precise Alignment and Reduced Wear: The smooth, 20mm diameter shoulder ensures accurate component positioning and minimizes wear on mating parts, extending the service life of your assembly.
• Superior Corrosion Resistance: The black oxide finish offers enhanced protection against rust and corrosion, making it suitable for use in demanding industrial environments.
• High-Strength Material Core: Manufactured from alloy steel with a Rockwell C32 hardness, this screw delivers excellent durability and resistance to deformation under heavy loads.
• Secure and Efficient Installation: The 10mm hex socket head allows for high-torque installation with standard tools, ensuring a tight and secure fit.
• Guaranteed Dimensional Consistency: The Class 5g6g thread fit and controlled shoulder tolerances ensure consistent, predictable performance and easy assembly.
• Global Standard Compliance: Engineered to meet ISO 7379, this screw ensures interchangeability and reliability in international projects and supply chains.

Professional Applications & Engineering Value

This M16x2mm shoulder screw is engineered to solve critical alignment and pivot point challenges in industrial applications. The precision-machined 20mm shoulder diameter acts as a built-in spacer or bearing surface, eliminating the need for additional washers or bushings and preventing components from shifting under rotational or linear loads. Made from high-strength alloy steel, it withstands intense vibrational forces and heavy loads common in machinery, automation systems, and conveyor assemblies. The coarse thread and black oxide finish further enhance its value by providing quick assembly and reliable corrosion resistance in harsh environments, reducing maintenance downtime and total cost of ownership.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit according to the ISO metric thread standard, ensuring high precision and interchangeability. Key dimensional tolerances include a shoulder diameter of 20mm (-0.072 to -0.01 mm) and a shoulder length of 25mm (0 to +0.25 mm). The product is manufactured in compliance with ISO 7379 and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, confirming its adherence to strict international environmental and safety regulations.