S-92981A804 M10 ASTM A108 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Black oxide finish provides reliable protection against rust and wear in demanding industrial environments.
• Superior Tensile Strength: Alloy steel construction with 140,000 psi tensile strength ensures high load-bearing capacity and reduces risk of fastener failure.
• Precise Shoulder Alignment: Knurled head and controlled shoulder diameter tolerance (-0.072 to -0.01 mm) enable accurate component positioning and prevent rotation.
• Easy Installation & High Torque Transfer: Hex socket drive (6 mm) allows for secure tool engagement and efficient assembly in confined spaces.
• Reliable Thread Performance: Class 5g6g thread fit with coarse pitch (M10x1.5) ensures quick assembly and vibration resistance in high-stress applications.
• Consistent Hardness & Wear Resistance: Rockwell C32 hardness maintains structural integrity under repeated use and mechanical stress.
• Broad Regulatory Compliance: Meets ASTM A108 specifications and is RoHS 3 & REACH compliant for global supply chain integration.

Professional Applications & Engineering Value

This M10 shoulder screw is engineered for precision assemblies where alignment and rotational stability are critical. The alloy steel core, combined with a black oxide finish, resists corrosion and extends service life in machinery, automotive, and automation systems. The knurled head texture enhances grip during manual adjustments, while the standard socket head profile with a 6 mm hex drive simplifies installation in tight spaces. The coarse thread spacing (M10x1.5) and Class 5g6g thread fit provide reliable engagement in metals and composites, reducing the risk of cross-threading. With a precisely machined shoulder (13 mm diameter, 10 mm length), it acts as a pivot or spacer, minimizing part movement and wear in rotating assemblies, making it ideal for jigs, fixtures, and bearing mounts.

Specification Summary & Compliance

This shoulder screw adheres to metric system dimensions with a thread size of M10x1.5 and Class 5g6g thread tolerance for consistent fit. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise assembly. It conforms to ASTM A108 material specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting use in environmentally regulated industries.