S-90833A123 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability – Alloy steel construction with Rockwell C30 hardness and 140,000 psi tensile strength ensures long-lasting performance under high-stress conditions.
• Superior Corrosion Resistance – Black oxide finish provides reliable protection against rust and wear in harsh industrial environments.
• Precision Fit & Alignment – Class 5g6g thread fit and standard shoulder diameter tolerance (-0.072 to -0.01 mm) guarantee accurate assembly and reduced vibration.
• Space-Saving Design – Low profile socket head with knurled texture allows for easy installation in confined spaces while preventing tool slippage.
• High Load Capacity – 16 mm shoulder length with controlled tolerance (0 to 0.25 mm) supports rotational and axial loads in machinery and fixtures.
• Quick & Secure Fastening – Coarse 1 mm pitch and 4 mm hex drive enable rapid installation with standard tools, improving assembly efficiency.
• Compliance Assurance – Meets RoHS 3 and REACH regulations, ensuring safe and environmentally responsible use across global markets.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and wear challenges in precision assemblies. The alloy steel core, combined with a black oxide finish, resists corrosion and extends service life in automated machinery, conveyor systems, and robotic arms. The low profile socket head with knurling ensures secure tool engagement, reducing installation errors in tight spaces. With a Class 5g6g thread fit and controlled shoulder dimensions, it maintains exact positioning for rotating components like bearings and pulleys, minimizing backlash and improving operational reliability. Ideal for industrial shoulder bolt applications, it supports high-tensile loads while complying with international environmental standards.

Specification Summary & Compliance

This metric shoulder screw features M6 x 1 mm coarse pitch threads with Class 5g6g tolerance for precise fit. Shoulder diameter is 8 mm with a tolerance of -0.072 to -0.01 mm, and shoulder length is 16 mm with 0 to 0.25 mm tolerance. Manufactured to industry standards, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to hazardous substance restrictions and environmental safety protocols.