S-90278A427 M6 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 alignment and pivot points enabled by the accurately machined 20mm shoulder with tight diameter tolerance, reducing component wear.
• High mechanical strength and durability from a Rockwell B55 hardness and 70,000 psi tensile strength for demanding applications.
• Secure and reliable fastening with a Class 6g thread fit and M6x1mm coarse thread for quick assembly and vibration resistance.
• Easy installation and removal using a standard 4mm hex drive socket head, providing a flush profile and high torque capability.
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards, ensuring safety and suitability for various markets.
• Versatile right-hand metric thread designed for broad compatibility with standard industrial components and machinery.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and rotational movement challenges in precision assemblies. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it suitable for applications in automotive, machinery, and electronics where environmental factors are a concern. The 20mm shoulder length and precise shoulder diameter tolerance provide a reliable bearing surface, minimizing misalignment and reducing wear on moving parts. With a socket head and hex drive design, it allows for high torque application in confined spaces, ensuring secure fastening in heavy-duty equipment. The Class 6g thread fit and coarse thread pitch further enhance assembly efficiency and vibration resistance, delivering long-term reliability in dynamic industrial settings.

Specification Summary & Compliance

This metric shoulder screw features an M6x1mm thread with Class 6g thread fit and a shoulder diameter tolerance of -0.025 to 0 mm. The shoulder length is 20 mm with a tolerance of 0 to 0.05 mm, ensuring precise fit for alignment-critical applications. Manufactured from 18-8 stainless steel, it meets industry standards for mechanical properties, including a tensile strength of 70,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety requirements.