S-90269A122 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments including chemical and marine applications.
• Precise alignment and pivot function provided by the 12mm shoulder with controlled diameter and length tolerances for smooth assembly and reduced wear.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength, ensuring reliable performance under load.
• Secure and efficient installation with a 2mm hex socket drive and knurled head, preventing cam-out and allowing for high torque application.
• Accurate and reliable threading with Class 5g6g metric coarse (M3x0.5mm) thread fit, promoting consistent engagement and vibration resistance.
• Durable and wear-resistant material with Rockwell B79 hardness, maintaining integrity through repeated use.
• Compliance with strict environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and pivot needs in precision assemblies. The 316 stainless steel material provides exceptional resistance to corrosion and oxidation, making it suitable for demanding environments like chemical processing, marine equipment, and food machinery. The 12mm shoulder length with tight tolerances ensures exact positioning of components, reducing misalignment and wear in rotating parts such as gears, pulleys, and linkages. The hex socket drive and knurled head enhance grip and torque transmission, minimizing slippage during installation. With its Class 5g6g thread fit and coarse pitch, this fastener offers reliable threading in various materials, supporting efficient assembly in industrial applications where durability and precision are paramount.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit per metric standards, ensuring precise thread engagement and dimensional accuracy. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, supporting tight control for alignment-critical uses. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for environmentally conscious industries.