S-94361A546 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black oxide finish, extending service life in demanding industrial environments.
• High tensile strength of 140,000 psi ensures reliable performance under heavy loads and vibration.
• Precise Class 5g6g thread fit guarantees consistent engagement and reduces the risk of cross-threading during assembly.
• Rockwell C32 hardness provides excellent wear resistance and durability for long-term use.
• Knurled socket head with 5 mm hex drive offers secure, non-slip tool engagement for efficient installation and removal.
• Accurate 16mm shoulder length with tight tolerances enables precise component alignment and spacing in assemblies.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered from alloy steel to address critical needs in precision machinery, automation systems, and heavy-duty equipment. The coarse pitch M8x1.25 thread with Class 5g6g fit ensures fast, secure fastening, reducing assembly time and minimizing thread wear. The black oxide finish provides a protective layer against rust and corrosion, making it ideal for applications exposed to moisture or harsh chemicals. With a 16mm shoulder length and precise diameter tolerances, it acts as a reliable pivot, spacer, or axle, maintaining exact alignment in rotating assemblies and reducing component misalignment issues. Its high tensile strength and Rockwell C32 hardness ensure it withstands dynamic loads, making it a trusted choice for industrial engineers seeking durability and performance in metric shoulder screw applications.

Specification Summary & Compliance

This shoulder screw features a metric M8x1.25 coarse thread with Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, providing precise manufacturing control. It is manufactured from alloy steel and complies with RoHS 3 (2015/863/EU) with exemption 6(a) for lead as an alloying element in steel, and is REACH (EC 1907/2006) compliant, meeting essential environmental and safety regulations for industrial use.