S-91273A799 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability and Corrosion Resistance: Crafted from 18-8 Stainless Steel with a Black Oxide finish for superior protection against rust and wear in demanding industrial environments.
• Precise Alignment and Spacing: Features a consistent 30mm shoulder length with minimal tolerance, ensuring accurate component positioning and reducing assembly errors.
• High-Strength Fastening: Delivers a robust 70,000 psi tensile strength and 35,000 psi shear strength, providing reliable performance under significant mechanical stress.
• Secure and Efficient Installation: Equipped with a 2.5 mm hex drive and knurled head for superior grip and torque application, minimizing the risk of stripping during assembly.
• Reliable Thread Engagement: Class 5g6g thread fit on the M5x0.8mm coarse thread ensures consistent, secure fastening and compatibility with standard metric components.
• Long-Term Operational Integrity: Rockwell B55 hardness guarantees excellent wear resistance and maintains dimensional stability over extended use.
• Compliance with Global Standards: Meets RoHS 3 and REACH regulations, ensuring environmental safety and suitability for international markets.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical challenges in precision assembly, such as maintaining exact spacing and alignment in machinery, pivots, and rotating assemblies. The 30mm shoulder length acts as a precise datum for components, eliminating misalignment and reducing wear on moving parts. Made from 18-8 Stainless Steel with a Black Oxide finish, it offers excellent corrosion resistance, making it ideal for harsh environments like automotive, aerospace, and electronic enclosures. The socket head with hex drive and knurled texture ensures secure tool engagement, preventing slippage and damage during high-torque applications. Its right-hand metric thread and high tensile strength provide reliable fastening in dynamic loads, ensuring long-term operational stability and reducing maintenance needs.

Specification Summary & Compliance

This precision shoulder screw adheres to Metric standards with an M5x0.8mm coarse thread and Class 5g6g thread fit for consistent dimensional accuracy. The shoulder features a diameter of 5 mm with a tolerance of -0.04 to -0.01 mm and a length of 30 mm with a tolerance of 0 to 0.25 mm, ensuring precise fit in assemblies. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility for industrial use.