S-91273A201 5/16"-24 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Precise component alignment through the 2" shoulder with tight tolerances for reliable assembly
• High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
• Secure installation and removal using the 5/32" hex drive and knurled head for enhanced grip
• Fine thread engagement with 5/16"-24 UNF Class 2A fit ensuring vibration resistance and stability
• Durable performance backed by Rockwell B55 hardness for long-term reliability
• Environmental compliance meeting RoHS 3 and REACH standards for safe, sustainable use

Professional Applications & Engineering Value

This stainless steel shoulder screw is engineered to address critical alignment and durability challenges in precision machinery. The 2" shoulder length with minimal tolerances provides exact positioning for rotating components like bearings, pulleys, and gears, reducing wear and misalignment. Made from 18-8 stainless steel, it offers excellent corrosion resistance in moist or chemical-exposed settings, while the fine UNF thread and Class 2A fit ensure secure fastening under dynamic loads. The knurled socket head and hex drive allow for easy torque application, making it ideal for assembly lines and maintenance in automotive, aerospace, and industrial equipment where reliability is paramount.

Specification Summary & Compliance

This shoulder screw adheres to Class 2A thread fit standards with precise shoulder diameter and length tolerances. It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. The UNF fine thread and right-hand threading follow industry specifications, supporting consistent performance in technical applications.