S-90269A338 M12 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life
• Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high-stress conditions
• Precise alignment and smooth rotation enabled by the 35mm shoulder with controlled diameter tolerance for reduced wear in assemblies
• High torque application capability with an 8mm hex socket drive and knurled head for secure, slip-resistant fastening
• Accurate and durable thread engagement thanks to the M12x1.75 coarse thread with Class 5g6g fit, ensuring consistent clamping force
• Robust construction with Rockwell B79 hardness for excellent wear resistance and durability in repetitive use
• Global compliance and reliability with ISO 7379 certification, meeting stringent quality and dimensional standards

Professional Applications & Engineering Value

This M12 shoulder screw is engineered to solve critical alignment and pivot point challenges in precision industrial applications. The 316 Stainless Steel material offers outstanding resistance to chemicals and moisture, preventing failure in corrosive settings like marine equipment or food processing machinery. The 35mm shoulder length provides a precise bearing surface, eliminating the need for separate spacers and reducing assembly complexity in rotating assemblies, linkages, and jigs. The coarse thread (M12x1.75) ensures quick installation and high vibration resistance, while the socket head with 8mm hex drive allows for high-torque tightening in confined spaces. This combination of corrosion resistance, high strength, and dimensional accuracy makes it an ideal precision shoulder fastener for demanding mechanical systems.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 for dimensional consistency. Threads are manufactured to Class 5g6g tolerance, ensuring precise fit. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm for accurate assembly. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety regulations.