S-90833A132 M8 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, extending service life.
• High Tensile Strength for Demanding Loads: Manufactured from high-strength alloy steel with a tensile strength of 140,000 psi, ensuring integrity under high stress and vibration.
• Precision Shoulder for Accurate Alignment: Features a 10mm diameter shoulder with tight tolerances, providing a precise bearing surface and preventing component misalignment.
• Secure, Low-Profile Installation: The low-profile socket head with a 5mm hex drive and knurled texture allows for easy, secure tightening in confined spaces while resisting cam-out.
• Reliable Thread Engagement: M8x1.25 coarse metric threads with a Class 5g6g fit ensure fast assembly and robust, vibration-resistant connections.
• Compliance with Environmental Standards: Meets RoHS 3 and REACH regulations, making it suitable for use in regulated industries and global supply chains.
• Optimized for High-Stress Applications: A Rockwell C30 hardness rating ensures the screw maintains its shape and strength, resisting deformation under heavy use.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to solve critical alignment and load-bearing challenges in industrial applications. The precision-machined 10mm shoulder diameter with a controlled tolerance acts as a reliable pivot or axle, eliminating the need for separate spacers and reducing assembly time. Made from high-strength alloy steel and finished with a protective black oxide coating, it resists corrosion and wear in harsh conditions, from automated machinery to precision instruments. The low-profile socket head with a knurled texture and 5mm hex drive ensures a secure grip and easy installation in tight spaces, preventing slippage during torque application. Its M8x1.25 coarse thread and Class 5g6g fit provide quick, stable fastening that withstands vibrations, making it ideal for securing moving parts in assemblies where precision and reliability are paramount.

Specification Summary & Compliance

This shoulder screw features an M8x1.25 coarse metric thread with a Class 5g6g thread fit for standard industrial use. The shoulder diameter is 10 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 25 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. 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 suitability for environmentally conscious and regulated industrial markets.