S-94361A147 3/8"-24 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced durability and corrosion resistance with black oxide finish, ideal for harsh industrial environments
• Superior strength and load-bearing capacity from alloy steel construction with 140,000 psi tensile strength
• Precision alignment and reduced wear thanks to Class 3A thread fit and standard shoulder fit for stable assembly
• Easy installation and secure grip with hex drive socket head and knurled texture for non-slip handling
• Reliable performance in regulated industries with compliance to RoHS 3 and REACH environmental standards
• Accurate positioning in machinery due to fine UNF thread and consistent shoulder diameter/length tolerances
• Long-term cost efficiency from Rockwell C32 hardness resisting deformation under high stress

Professional Applications & Engineering Value

This alloy steel shoulder screw is engineered to address common industrial challenges like misalignment, vibration loosening, and corrosion in precision equipment. The black oxide finish provides a protective layer against rust, extending service life in humid or abrasive settings. With a Class 3A thread fit and UNF fine thread, it ensures tight, secure fastening in applications such as robotics, automotive assemblies, and machinery frames, where exact shoulder positioning is critical. The socket head with hex drive allows for easy torque application in confined spaces, while the knurled head enhances grip during manual adjustments. Ideal for high-stress industrial applications, this screw maintains integrity under loads up to 140,000 psi, reducing maintenance downtime and improving operational reliability.

Specification Summary & Compliance

This shoulder screw adheres to Class 3A thread fit standards for precise UNF fine threading (3/8"-24), with shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005" ensuring consistent performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting environmentally responsible manufacturing. The alloy steel material and specified hardness (Rockwell C32) align with industrial durability requirements for reliable use in engineered systems.