S-90833A126 M6 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.
• Precision Fit for Reduced Vibration – Class 5g6g thread fit and tight shoulder diameter tolerance (-0.072 to -0.01 mm) ensure secure, stable assembly with minimal play.
• High Tensile Strength for Heavy-Duty Use – Alloy steel construction with 140,000 psi tensile strength and Rockwell C30 hardness supports high-stress applications.
• Space-Saving Low Profile Design – Low socket head and knurled texture enable easy installation in confined spaces while improving grip.
• Consistent Shoulder Length for Alignment – 30 mm shoulder with standard fit facilitates precise component positioning and rotational control.
• Broad Regulatory Compliance – Meets RoHS 3 and REACH standards, ensuring safe, environmentally responsible use across global markets.
• Efficient Hex Drive Installation – 4 mm hex drive allows for quick, tool-friendly fastening with reduced risk of stripping.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and load-bearing challenges in machinery, automation, and precision equipment. The alloy steel core, combined with a black oxide finish, resists corrosion and maintains integrity under repetitive stress. The Class 5g6g thread fit and controlled shoulder diameter tolerance minimize backlash, making it ideal for securing rotating parts like gears, pulleys, and linkages. Its low-profile socket head with knurling ensures accessibility in tight spaces, while the coarse 1 mm pitch enables faster assembly. These features collectively reduce maintenance downtime and enhance operational reliability in industrial applications such as CNC systems, conveyor assemblies, and robotic arms.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M6x1 mm coarse thread and Class 5g6g thread fit for precise engagement. The shoulder diameter is maintained at 8 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 30 mm with a 0 to 0.25 mm tolerance. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances and supporting sustainable procurement practices.