S-90833A122 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability in Demanding Environments: Black oxide finish provides superior corrosion resistance, extending service life in harsh industrial settings.
• High Tensile Strength for Secure Fastening: Alloy steel construction delivers a robust 140,000 psi tensile strength, ensuring reliable performance under high stress.
• Precision Alignment and Reduced Wear: The 8mm shoulder diameter with tight tolerance provides accurate component location and minimizes bushing or bearing wear.
• Secure and Easy Installation: Knurled, low-profile socket head with 4 mm hex drive offers excellent grip and torque transmission, even in confined spaces.
• Reliable Thread Engagement: M6x1 mm coarse threads with Class 5g6g fit ensure consistent, vibration-resistant connections.
• Compliance with Global Standards: Meets RoHS 3 and REACH regulations, making it suitable for use in regulated industries and international markets.
• Optimized Hardness for Performance: Rockwell C30 hardness provides an ideal balance of strength and toughness, resisting deformation under load.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to solve critical alignment and pivot point challenges in machinery and automation. The precision 8mm shoulder diameter acts as a built-in spacer or axle, ensuring components like gears, levers, and linkages are perfectly positioned, which eliminates the need for separate washers or spacers and reduces assembly time. Manufactured from high-strength alloy steel and finished with a protective black oxide coating, it withstands high loads and resists corrosion in demanding environments such as automotive assemblies, conveyor systems, and precision instruments. The low-profile socket head with a knurled texture allows for secure tool engagement in tight spaces, while the Class 5g6g thread fit on the right-hand coarse threads ensures reliable, vibration-resistant fastening. This design directly addresses common issues like component misalignment and premature wear, delivering long-term reliability and reduced maintenance.

Specification Summary & Compliance

This shoulder screw features an M6x1 mm thread with a Class 5g6g thread fit per metric standards, ensuring precise and secure engagement. The shoulder diameter is 8 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 12 mm with a tolerance of 0 to 0.25 mm, guaranteeing high dimensional accuracy for consistent performance. It is manufactured from alloy steel with a Rockwell C30 hardness and a tensile strength of 140,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.