S-90269A211 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.
• Precise component alignment ensured by the 25mm shoulder with standard fit, minimizing assembly play and vibration.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding load applications.
• Secure and efficient installation with a 2mm hex socket drive and knurled head for superior grip and torque transmission.
• Reliable thread engagement with Class 5g6g metric coarse threads (M3x0.5mm) for consistent fastening performance.
• Enhanced durability from a Rockwell B79 hardness, providing excellent wear resistance.
• Global compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered from 316 Stainless Steel to solve critical challenges in precision assemblies. The 25mm shoulder length acts as a precise spacer or pivot, eliminating the need for additional bushings and reducing parts count in machinery, automation systems, and electronic enclosures. The knurled head and hex socket drive allow for high-torque installation in confined spaces, preventing cam-out and ensuring a secure fit. Its corrosion-resistant properties make it indispensable in medical, marine, and chemical processing equipment, where reliability and longevity are paramount. The combination of high tensile strength and precise Class 5g6g thread fit ensures vibration resistance and maintains alignment under dynamic loads, delivering consistent performance in industrial applications.

Specification Summary & Compliance

This shoulder screw features an M3x0.5mm coarse metric thread with a Class 5g6g fit for standard tolerance. The shoulder diameter is 4 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 25 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial use without hazardous substances.