S-92981A198 M6 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Precision-machined shoulder with tight diameter tolerance (-0.072 to -0.01 mm) provides accurate alignment and smooth rotation in assemblies.
• Knurled socket head with 4 mm hex drive offers superior grip and torque transmission, minimizing tool slippage during installation.
• Black oxide finish enhances corrosion resistance and provides a durable, non-reflective surface for extended service life.
• Class 5g6g thread fit guarantees consistent, secure fastening with coarse 1 mm pitch for quick assembly and disassembly.
• Alloy steel construction with Rockwell C32 hardness delivers excellent wear resistance and durability in demanding industrial environments.
• Full compliance with ISO 7379, RoHS 3, and REACH ensures adherence to international quality and environmental standards for global supply chain compatibility.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and pivot point requirements in precision machinery, automation systems, and rotating assemblies. The alloy steel core, hardened to Rockwell C32, withstands repetitive dynamic loads and shear forces up to 84,000 psi, preventing deformation in high-cycle applications. The 8 mm shoulder diameter with controlled tolerance acts as a precise locating dowel, eliminating play in bearings, gears, and linkages. The black oxide finish not only resists corrosion but also reduces galling during adjustment. Combined with the knurled socket head for secure tool engagement, this metric shoulder bolt ensures reliable performance in robotics, conveyor systems, and fixture design, where dimensional stability and ISO 7379 compliance are paramount.

Specification Summary & Compliance

This shoulder screw features M6x1 mm coarse thread with Class 5g6g tolerance for precise fit, an 8 mm shoulder diameter (tolerance: -0.072 to -0.01 mm), and 8 mm shoulder length (tolerance: 0 to 0.25 mm). Manufactured to ISO 7379 specifications, it is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and material traceability.