S-91273A590 5/16"-18 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.
- Precise component alignment ensured by the 1-1/2" shoulder with tight length tolerance for stable assembly.
- High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding applications.
- Enhanced grip and torque application from the knurled socket head and 5/32" hex drive, reducing tool slippage.
- Reliable coarse UNC threading with Class 2A fit for quick assembly and secure fastening in various materials.
- Durable performance backed by Rockwell B55 hardness, resisting wear and deformation under load.
- Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
This shoulder screw is engineered to address critical alignment and durability challenges in industrial settings. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for machinery, automotive, and electronics applications where exposure to moisture or chemicals is common. The 1-1/2" shoulder length with precise tolerances allows for accurate positioning of moving parts, reducing wear and misalignment in assemblies. Combined with the 5/16"-18 UNC coarse thread and Class 2A fit, it ensures easy installation and strong retention, while the knurled socket head enhances grip for efficient torque transfer in tight spaces. This design minimizes downtime and maintenance, offering long-term reliability in high-stress environments.
Specification Summary & Compliance
The screw features a 5/16"-18 UNC coarse thread with Class 2A tolerance for consistent fit, a shoulder diameter of 5/16" with tight tolerance, and a shoulder length of 1-1/2" with minimal variation. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.
