S-90269A909 M20 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel and black oxide finish, ideal for harsh industrial environments.
• Precise component alignment ensured by the knurled socket head and consistent shoulder diameter of 24 mm.
• High mechanical strength with 70,000 psi tensile and 35,000 psi minimum shear strength for reliable load-bearing applications.
• Easy installation and removal using the 12 mm hex drive, reducing assembly time and tool wear.
• Accurate thread engagement with Class 5g6g fit and M20x2.5 coarse thread, minimizing loosening in dynamic conditions.
• Durable performance backed by Rockwell B79 hardness, resisting deformation under stress.
• Compliance with global standards including ISO 7379, RoHS 3, and REACH, ensuring safety and regulatory adherence.

Professional Applications & Engineering Value

This M20 shoulder screw is engineered to address common industrial challenges such as misalignment and corrosion in precision assemblies. Made from 316 stainless steel with a black oxide finish, it offers exceptional resistance to chemicals and moisture, making it suitable for automotive, machinery, and marine applications. The metric coarse thread and precise shoulder dimensions (24 mm diameter, 30 mm length) provide stable pivoting and spacing, reducing wear on connected parts. Its socket head design with knurling ensures secure tool grip, facilitating quick maintenance in tight spaces, while the high tensile strength supports heavy-duty operations without failure.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 standards, with a Class 5g6g thread fit for metric applications. Shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise assembly. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material integrity.