S-90278A329 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Precise component alignment enabled by the 6mm shoulder diameter with a tight tolerance of -0.025 to 0 mm, ensuring accurate positioning in assemblies.
• High-strength performance with a tensile strength of 70,000 psi and Rockwell B55 hardness, providing reliable load-bearing capacity.
• Secure and reliable fastening through the Class 6g thread fit and M5x0.8 coarse thread, offering excellent vibration resistance.
• Easy installation and removal with the 3mm hex socket drive, allowing for efficient assembly in confined spaces.
• Environmental and regulatory compliance with RoHS 3 and REACH, ensuring safe use in various global markets.
• Durable and smooth operation from the smooth head texture and standard socket head profile, reducing wear during use.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and component slippage. The 18-8 stainless steel material offers excellent corrosion resistance, making it suitable for applications in machinery, automotive, and electronics where exposure to moisture or chemicals is common. The 6mm shoulder diameter with precise tolerances ensures accurate pivoting and spacing, reducing the need for additional bushings or washers. Combined with the hex socket drive and coarse thread, it facilitates quick installation and high clamping force, ideal for high-vibration environments. This design minimizes assembly time and enhances reliability in industrial shoulder screw applications, supporting efficient production workflows.

Specification Summary & Compliance

The screw features a Class 6g thread fit per metric standards, ensuring consistent engagement and performance. Dimensions include a shoulder diameter tolerance of -0.025 to 0 mm and shoulder length tolerance of 0 to 0.05 mm for high precision. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards without hazardous substances.