S-90269A480 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• Enhanced durability and wear resistance provided by the black oxide finish, protecting against abrasion and oxidation.
• High mechanical strength with a tensile strength of 70,000 psi and Rockwell B79 hardness, ensuring reliable performance under load.
• Precise component alignment enabled by the 3mm shoulder with controlled diameter and length tolerances for stable assembly.
• Secure and efficient installation using the 2 mm hex socket drive and knurled head, preventing tool slippage and enabling high torque application.
• Accurate and reliable threading with Class 5g6g thread fit and M3x0.5 coarse pitch, ensuring consistent engagement and vibration resistance.
• Compliance with environmental standards including RoHS 3 and REACH, making it suitable for regulated industrial and international markets.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical assembly challenges in precision industries. The 316 stainless steel material offers exceptional resistance to chemicals and moisture, reducing failure in corrosive settings like marine or chemical processing equipment. The black oxide finish adds a protective layer that minimizes galling and wear during repeated use. With a 3mm shoulder providing a precise locating surface, it ensures accurate alignment in machinery, automotive, and electronics assemblies, preventing misalignment and reducing stress on threaded components. The hex socket head with knurling allows for secure tool engagement in confined spaces, enhancing installation efficiency. Combined with a Class 5g6g thread fit and coarse thread pitch, it delivers robust performance in high-vibration applications, making it a reliable choice for demanding industrial applications.

Specification Summary & Compliance

This shoulder screw features a metric M3x0.5 thread with a Class 5g6g thread fit for precise tolerance control. The shoulder diameter is 4 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 3 mm with a tolerance of 0 to 0.25 mm, ensuring consistent dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and global industrial use.