S-94361A132 5/16"-24 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Class 3A thread fit with UNF fine threads provides superior vibration resistance and precise assembly, minimizing loosening in dynamic environments.
• Black oxide finish on alloy steel offers enhanced corrosion resistance, extending service life in industrial settings.
• Knurled socket head with hex drive allows for secure tool engagement and easy installation, even in confined spaces.
• Precision shoulder diameter of 3/8" with tight tolerances ensures accurate alignment and smooth rotation in machinery and pivoting mechanisms.
• Rockwell C32 hardness delivers excellent wear resistance, maintaining dimensional stability under repeated use.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and meets global industry standards for hazardous substance control.

Professional Applications & Engineering Value

This alloy steel shoulder screw is engineered to address common industrial challenges, such as misalignment and vibration-induced failures in precision assemblies. The UNF fine thread and Class 3A fit provide a secure, tight connection that resists loosening in high-vibration environments like automotive or robotics systems. The black oxide finish adds a protective layer against rust and wear, ideal for harsh conditions in manufacturing equipment. With a knurled socket head and hex drive, installation is straightforward, reducing assembly time and improving efficiency in automated machinery, pivoting joints, and conveyor systems where reliable shoulder screw performance is critical for operational continuity.

Specification Summary & Compliance

This shoulder screw features a 5/16"-24 UNF thread with Class 3A tolerance for precise fit, a shoulder diameter of 3/8" with tight tolerances (-0.004" to -0.002"), and a shoulder length of 3/8" (±0.005"). Manufactured from alloy steel with a black oxide finish, it meets industry standards for strength and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring adherence to environmental and safety regulations.