S-91273A223 3/8"-24 Shoulder Screws
Shoulder Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
- Enhanced torque transmission and alignment thanks to the 3/4" shoulder with tight diameter and length tolerances.
- High-strength performance with 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding applications.
- Secure, non-slip fastening provided by the knurled hex socket head, ensuring a firm grip during installation.
- Precise, reliable thread engagement with a Class 2A fit and 3/8"-24 UNF fine thread for vibration resistance.
- Broad regulatory compliance meeting RoHS 3 and REACH standards for use in regulated markets.
- Excellent durability backed by a Rockwell B55 hardness rating for long service life.
Professional Applications & Engineering Value
This 3/8"-24 UNF shoulder screw is engineered to solve critical alignment and pivot point challenges in machinery and assemblies. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for applications in food processing, chemical, and marine environments. The precision Class 2A thread fit and fine thread spacing ensure secure fastening in high-vibration settings, while the knurled hex socket head offers superior tool engagement to prevent stripping. The unthreaded shoulder acts as a precise bearing surface or pivot, reducing wear on components and maintaining accurate positioning in rotary assemblies, jigs, and fixtures, thereby enhancing overall equipment reliability and reducing maintenance cycles.
Specification Summary & Compliance
This shoulder screw features a 3/8"-24 UNF thread with a Class 2A fit for precise dimensional accuracy. The shoulder diameter is 3/8" with a tolerance of -0.004" to -0.002", and the shoulder length is 3/4" with a tolerance of -0.005" to 0.005". It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55 and a tensile strength of 70,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.
