S-91319A202 M5 ASME B18.3.3M, ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with nylon pellet thread locker maintains secure fastening in temperatures from -50° to 250° F, reducing maintenance needs in dynamic environments.
• Exceptional strength and durability from alloy steel construction with 150,000 psi tensile and 84,000 psi shear strength, ensuring reliable performance under high-stress conditions.
• Precise alignment and smooth rotation thanks to the Class 5g6g thread fit and standard shoulder, minimizing wear in pivoting or rotating assemblies.
• Corrosion-resistant black oxide finish enhances longevity in industrial settings, providing reliable protection against rust and degradation.
• Easy installation and removal with hex socket drive and knurled head, allowing for efficient tool engagement and reduced assembly time.
• Consistent dimensional accuracy with shoulder diameter tolerance of -0.049 to -0.01 mm and length tolerance of 0 to 0.25 mm, ensuring repeatable fit in precision applications.
• Broad compliance with industry standards including ASME B18.3.3M and ISO 7379, guaranteeing interoperability and quality in global supply chains.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address common challenges in machinery and equipment assembly, where vibration loosening and misalignment can lead to operational failures. The alloy steel core, combined with a black oxide finish, resists corrosion and wear in harsh environments, while the Class 5g6g thread fit ensures tight tolerances for smooth rotational movement in precision industrial applications like robotics, automotive systems, and conveyor mechanisms. The integrated nylon pellet thread locker secures fasteners against shock and thermal cycling, reducing downtime and enhancing safety. By meeting ASME B18.3.3M and ISO 7379 specifications, it delivers consistent performance for B2B buyers seeking reliable, long-lasting metric shoulder screws.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit with M5x0.8 coarse threading and precise shoulder diameter tolerance of -0.049 to -0.01 mm, ensuring dimensional accuracy per ASME B18.3.3M and ISO 7379 standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible manufacturing and use in global markets.