S-91251A380 5/16"-24 x 5/8" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel Socket Head 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
- Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- Superior corrosion resistance from the black-oxide coating extends service life in harsh environments, minimizing maintenance needs.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical machinery.
- High hardness rating (Rockwell C37) enhances wear resistance, maintaining thread integrity through repeated use.
- Fine UNF threads offer improved load distribution and better sealing capabilities compared to coarse threads.
- 1/4" hex drive design allows for easy installation with standard tools, speeding up assembly processes.
- Full threading along the 5/8" length ensures maximum grip and adjustability in various material thicknesses.
Professional Applications & Engineering Value
Engineered for demanding environments, these socket head cap screws in black-oxide alloy steel address common industrial challenges like vibration loosening and corrosion. The fine UNF thread (5/16"-24) and Class 3A fit provide superior clamping force and fatigue resistance, ideal for precision equipment, automotive assemblies, and heavy machinery. The 170,000 psi tensile strength and Rockwell C37 hardness ensure durability under dynamic loads, while the corrosion-resistant coating protects against moisture and chemicals. These screws are trusted in high-stress applications where reliability and compliance with stringent standards are non-negotiable.
Specification Summary & Compliance
This socket head cap screw features a 5/16"-24 UNF fine thread with Class 3A tolerance for precise fit, and is fully threaded over a 5/8" length. Manufactured to ASTM A574 specifications, it ensures consistent quality and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.
