S-90269A474 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and Black Oxide finish, ideal for harsh environments and extended service life.
• Precise component alignment and pivot points ensured by the 35mm shoulder with controlled diameter tolerance for smooth rotational movement.
• High-strength performance with a tensile strength of 70,000 psi and a minimum shear strength of 35,000 psi for reliable load-bearing applications.
• Secure and slip-resistant installation provided by the knurled socket head and 2 mm hex drive, allowing for high torque application.
• Consistent and reliable threading with Class 5g6g thread fit and M3x0.5 coarse pitch for easier assembly and vibration resistance.
• Broad industrial compliance meeting RoHS 3 and REACH standards, ensuring environmental and safety regulations are met.
• Durable material integrity with a Rockwell B79 hardness, offering excellent wear resistance and long-term mechanical stability.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and durability challenges in industrial assemblies. The 316 Stainless Steel material, combined with a Black Oxide finish, provides exceptional resistance to corrosion, chemicals, and high-moisture environments, making it suitable for machinery, automotive, and marine applications. The 35mm shoulder length acts as a precise datum for locating parts, reducing wear on threaded sections and ensuring accurate rotational movement in pivots, linkages, and bearing mounts. The knurled head texture and hex socket drive facilitate secure handling and high-torque installation, minimizing the risk of tool slippage and assembly errors. This design is ideal for applications requiring robust precision shoulder bolts that maintain dimensional stability under mechanical stress.

Specification Summary & Compliance

This metric shoulder screw features an M3x0.5 coarse thread with a Class 5g6g thread fit for standard tolerance applications. The shoulder diameter is 4 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 35 mm with a tolerance of 0 to 0.25 mm, ensuring precise dimensional control. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, this fastener meets stringent environmental and safety requirements for industrial use.