S-90278A444 M2 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Precise alignment and smooth rotation ensured by the 25mm shoulder with tight tolerances for consistent performance.
• High tensile strength of 70,000 psi provides reliable, durable fastening under mechanical stress.
• Easy installation and removal with the 1.5mm hex socket drive, reducing assembly time and tool wear.
• Accurate thread engagement with Class 6g fit and coarse M2x0.4 thread for quick, secure connections.
• Enhanced durability from Rockwell B55 hardness, resisting wear and deformation over time.
• Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance in global markets.

Professional Applications & Engineering Value

This M2 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 applications in electronics, machinery, and automotive sectors where exposure to moisture or chemicals is common. The 25mm shoulder length with precise tolerances provides a stable bearing surface, reducing wear on moving parts and ensuring smooth operation in pivots, linkages, and guides. The hex socket head allows for compact installation in confined spaces, while the coarse thread spacing and Class 6g thread fit enable quick, reliable fastening without cross-threading. Ideal for industrial shoulder screw uses, this component enhances equipment longevity and reduces maintenance needs, supporting efficient production workflows.

Specification Summary & Compliance

This precision shoulder screw features a M2x0.4 metric thread with Class 6g tolerance for accurate fit, a shoulder diameter of 3 mm with a tolerance of -0.025 to 0 mm, and a shoulder length of 25 mm with a tolerance of 0 to 0.05 mm. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial applications.