S-90833A125 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Black oxide finish provides superior protection against rust and wear in harsh industrial environments, extending service life.
• High Tensile Strength for Demanding Applications: Made from alloy steel with a tensile strength of 140,000 psi, ensuring reliable performance under high-stress conditions.
• Precision Shoulder for Accurate Alignment: The 25mm shoulder with standard fit and tight diameter tolerance ensures stable component positioning and reduces assembly misalignment.
• Secure and Easy Installation: Knurled, low-profile socket head with a 4mm hex drive offers excellent grip and torque transmission, minimizing tool slippage.
• Consistent Thread Performance: M6 x 1mm coarse thread with Class 5g6g fit guarantees secure fastening and compatibility with standard metric components.
• Robust Material Hardness: Rockwell C30 hardness provides excellent resistance to deformation and maintains thread integrity over repeated use.
• Compliant with Global Standards: Meets RoHS 3 and REACH regulations, ensuring safety and environmental responsibility for international supply chains.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 25mm shoulder length acts as a precise pivot or spacer, eliminating the need for additional bushings in machinery, conveyor systems, and robotic arms. Constructed from high-strength alloy steel with a black oxide finish, it resists corrosion in environments exposed to moisture and chemicals. The knurled socket head and hex drive design ensure secure tool engagement, reducing installation time and preventing damage in high-vibration applications like automotive fixtures and industrial automation. Its coarse thread pitch and Class 5g6g thread fit provide reliable fastening, making it ideal for maintaining precision in repetitive assembly operations.

Specification Summary & Compliance

The screw features an M6 x 1 mm metric thread with a Class 5g6g tolerance for consistent fit. The shoulder diameter is 8 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 precise dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its suitability for regulated industrial and electronic applications.