S-90278A257 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• Precise alignment and spacing ensured by the 50mm shoulder with tight length tolerance, reducing assembly errors and improving component fit.
• High strength and durability from Rockwell B55 hardness and 70,000 psi tensile strength, supporting demanding mechanical loads.
• Secure and reliable fastening with Class 6g thread fit and M6x1mm coarse thread, providing excellent grip and vibration resistance.
• Easy installation and removal using a standard 4mm hex drive, allowing for efficient maintenance and reduced downtime.
• Smooth 12mm socket head offers a flush finish and prevents snagging, enhancing safety and aesthetics in assembled products.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in global industrial markets.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. The 18-8 stainless steel material provides excellent resistance to rust and chemicals, making it suitable for applications in machinery, automotive, and electronics where exposure to moisture or contaminants is a concern. The precise shoulder length of 50mm acts as a dependable pivot or spacer, ensuring accurate positioning of moving parts like gears or bearings, which reduces wear and extends equipment life. Combined with a right-hand coarse thread and hex drive, it allows for quick, secure fastening in high-vibration environments, minimizing maintenance needs and boosting operational reliability for B2B clients.

Specification Summary & Compliance

This metric shoulder screw features an M6x1mm thread with Class 6g tolerance for precise fit, a shoulder diameter of 8mm with tolerance from -0.025 to 0 mm, and shoulder length of 50mm with 0 to 0.05 mm tolerance. It adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it meets stringent environmental and safety standards for industrial use.