S-98451A116 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance and electrical conductivity from high-quality 360 Brass material, ideal for harsh industrial environments and electronic assemblies.
• Precise alignment and reduced wear with a 4mm shoulder length and tight diameter tolerance, ensuring smooth rotational movement in machinery.
• High strength and durability with Rockwell B55 hardness and 40,000 psi tensile strength, providing reliable performance under mechanical stress.
• Easy installation and removal using the 2.5mm hex socket drive, allowing for secure torque application in confined spaces.
• Accurate and secure fastening with Class 6g thread fit and M4 x 0.7mm coarse threads, minimizing cross-threading risks in high-vibration applications.
• Compliance with environmental and safety standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
• Versatile right-hand thread design for standard assembly processes, enhancing compatibility with metric components.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. Crafted from 360 Brass, it offers excellent corrosion resistance and electrical properties, making it ideal for industrial applications like machinery pivots, electronic enclosures, and automotive components. The precise shoulder with tight tolerances ensures minimal play, reducing wear and maintaining accuracy in rotating parts. Featuring a hex socket drive and coarse threads, it simplifies installation in hard-to-reach areas while providing strong holding power. Its Class 6g thread fit and robust construction support reliable performance in high-stress environments, delivering long-term value for engineering projects.

Specification Summary & Compliance

This metric shoulder screw adheres to precise dimensional standards, including a Class 6g thread fit for accurate engagement and a shoulder diameter tolerance of -0.025 to 0 mm. It complies with RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006), ensuring environmental safety. Manufactured to meet industrial specifications for thread type and drive style, it guarantees consistent quality and performance in professional settings.