S-90269A473 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing performance
• Precision alignment and spacing enabled by the 12mm shoulder with controlled diameter tolerance for accurate component positioning
• Enhanced durability and wear resistance from the black oxide finish and Rockwell B79 hardness
• Secure, slip-resistant installation with the knurled socket head and 2mm hex drive for high-torque applications
• Wide industrial compatibility due to the M3 x 0.5mm coarse thread with Class 5g6g fit, ensuring consistent engagement
• Regulatory compliance and safety meeting RoHS 3 and REACH standards for use in regulated industries

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and mounting challenges in precision assemblies. The 316 Stainless Steel material provides excellent resistance to corrosion and oxidation, making it suitable for marine, chemical processing, and outdoor equipment. The 12mm shoulder length acts as a precise pivot, bearing surface, or spacer, reducing wear on moving parts and maintaining component alignment under vibration. The black oxide finish enhances corrosion protection and reduces galling, while the socket head with hex drive allows for high torque application in confined spaces. Ideal for use in machinery, automation systems, and electronic enclosures, this metric shoulder bolt ensures long-term reliability and reduces maintenance needs in demanding industrial fastening applications.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit with M3 x 0.5mm coarse pitch, ensuring reliable engagement. The shoulder diameter is held to a tight tolerance of -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm for precise applications. Manufactured to high standards, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming its suitability for use in regulated and environmentally conscious industries.