S-90269A574 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Enhanced durability and wear resistance from the black oxide finish, providing a protective layer against abrasion and galling.
• High-strength performance offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable load-bearing in demanding assemblies.
• Precise alignment and spacing enabled by the 8mm shoulder with controlled diameter and length tolerances, reducing component wear.
• Secure and tamper-resistant fastening with a hex socket head design, allowing for high torque application in confined spaces.
• Consistent and reliable thread engagement due to the Class 5g6g thread fit, ensuring vibration resistance and long-term stability.
• Compliance with global environmental standards including RoHS 3 and REACH, making it suitable for regulated industries and export markets.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address common challenges in precision machinery, automation systems, and assembly jigs where exact component positioning is critical. The 316 stainless steel material provides superior resistance to chemicals, saltwater, and extreme temperatures, preventing failure in corrosive settings. The integrated 8mm shoulder acts as a precise pivot, bearing surface, or locator, eliminating the need for additional spacers and reducing assembly time. With a hex socket drive and black oxide finish, it ensures easy installation with standard tools while minimizing friction and seizing. Ideal for use in robotics, conveyor systems, and electronic enclosures, this fastener delivers long-term reliability and reduces maintenance costs in industrial applications.

Specification Summary & Compliance

This shoulder screw features a Metric M4x0.7 coarse thread with a Class 5g6g thread fit for standard tolerance applications. The shoulder diameter is manufactured to a tolerance of -0.072 to -0.01 mm, and the shoulder length to 0 to 0.25 mm, ensuring precise dimensional control. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in products requiring adherence to strict environmental and safety standards.