S-90269A843 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction and protective black oxide finish.
• High mechanical strength and durability for demanding applications, with a tensile strength of 70,000 PSI and Rockwell B79 hardness.
• Precise alignment and secure pivoting enabled by the consistent 16 mm shoulder diameter and 22 mm shoulder length with tight tolerances.
• Reliable and repeatable assembly ensured by the Class 5g6g thread fit and coarse M12x1.75 thread for robust fastening.
• Easy installation and removal with the 8 mm hex socket drive and knurled head for improved grip and torque application.
• Guaranteed dimensional interchangeability and quality through compliance with the international ISO 7379 standard.
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives.

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to solve critical alignment and wear issues in precision machinery. The 316 stainless steel material provides excellent resistance to chemicals and saltwater corrosion, making it ideal for marine, chemical processing, and food industry equipment. The black oxide finish adds an extra layer of protection while reducing galling. The shoulder section acts as a precise dowel, preventing lateral movement and bearing rotational loads in assemblies like linkages, gears, and pivoting joints. Its coarse metric thread ensures quick assembly and high vibration resistance, while the hex socket head allows for flush mounting in confined spaces. This combination delivers long-term reliability, reduced maintenance, and consistent performance in high-stress industrial applications.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit for standard clearance and reliable engagement. The shoulder diameter is 16 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 22 mm with a tolerance of 0 to 0.25 mm, ensuring precise dimensional control. It is manufactured to meet ISO 7379 specifications, guaranteeing interchangeability and quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for use in various markets.