S-90269A485 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Enhanced durability and wear resistance from Rockwell B79 hardness and black oxide finish, extending service life
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, ensuring reliable performance under load
• Precise alignment and reduced wear due to the 16mm shoulder with controlled tolerances, minimizing component movement
• Secure and efficient installation using a 2mm hex socket drive and knurled head for improved grip during assembly
• Accurate thread engagement with Class 5g6g fit and M3x0.5mm coarse thread, providing consistent fastening in metric applications
• Environmental and regulatory compliance with RoHS 3 and REACH standards, ensuring safe and sustainable use

Professional Applications & Engineering Value

This M3 shoulder screw in 316 stainless steel with a black oxide finish addresses critical engineering challenges in precision assemblies. The 16mm shoulder length with tight diameter tolerance (-0.072 to -0.01 mm) ensures exact component positioning, reducing misalignment and wear in rotating parts like bearings, gears, and linkages. The hex socket head with knurling allows for secure tool engagement in confined spaces, while the Class 5g6g thread fit guarantees reliable fastening in metric machinery. Its corrosion-resistant properties make it suitable for medical devices, marine equipment, and food processing applications, where durability and hygiene are paramount. This design minimizes maintenance and enhances operational reliability in demanding industrial settings.

Specification Summary & Compliance

This shoulder screw features a M3 x 0.5mm coarse thread with Class 5g6g thread fit for precise metric applications. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring high dimensional accuracy. Manufactured from 316 stainless steel with a black oxide finish, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental safety and industry standards.