S-90278A317 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• High tensile strength of 70,000 psi ensures reliable performance in demanding applications.
• Precise Class 6g thread fit guarantees consistent engagement and reduces assembly issues.
• Rockwell B55 hardness provides excellent durability and resistance to wear.
• Hex socket drive with 2mm key allows for secure, high-torque installation in confined spaces.
• Accurate shoulder dimensions (10mm length, 4mm diameter) enable precise component alignment and spacing.
• Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance.

Professional Applications & Engineering Value

This M3 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material offers excellent corrosion resistance, making it suitable for machinery, electronics, and automotive components exposed to moisture or chemicals. The hex socket drive facilitates easy installation in tight spaces, while the precise shoulder (10mm length, 4mm diameter) acts as a reliable pivot or spacer, reducing part movement and wear. With a coarse M3x0.5 metric thread and Class 6g fit, it ensures fast, secure fastening in high-vibration environments, enhancing overall assembly integrity and longevity.

Specification Summary & Compliance

This shoulder screw features a Class 6g thread fit per metric standards, with precise shoulder diameter tolerance of -0.025 to 0 mm and shoulder length tolerance of 0 to 0.05 mm. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements.