S-90337A493 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 and wear resistance with 18-8 Stainless Steel and TiCN coating, extending service life in harsh environments.
- Exceptional tensile strength of 70,000 psi ensures reliable fastening under high-stress conditions.
- Precise alignment and secure pivoting due to the accurately machined shoulder with minimal diameter and length tolerances.
- Rockwell B55 hardness provides excellent durability and resistance to deformation.
- Easy installation and removal with the hex drive socket and low-profile head, ideal for confined spaces.
- Wide industrial compatibility with 5/16"-18 UNC coarse threads and Class 2A fit for consistent performance.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for global markets.
Professional Applications & Engineering Value
This precision shoulder screw is engineered to solve critical alignment and wear challenges in demanding applications. The 18-8 Stainless Steel construction, combined with a TiCN coating, offers superior resistance to corrosion and abrasion, making it ideal for machinery, automotive assemblies, and precision instruments where exposure to moisture, chemicals, or friction is common. The hex drive and low-profile socket head facilitate easy torque application in tight spaces, while the precisely machined shoulder ensures accurate component positioning and reduces wear on mating parts. With a coarse UNC thread and Class 2A fit, it provides quick assembly and reliable holding power, enhancing efficiency in production lines and reducing maintenance downtime.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement and ease of assembly. Key dimensions include a thread size of 5/16"-18, thread length of 1/2", shoulder diameter of 3/8" (tolerance: -0.001" to 0"), and shoulder length of 7/8" (tolerance: 0" to 0.002"), ensuring precise manufacturing. It is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for industrial use without hazardous substances.
