S-91251A853 3/4"-10 x 4 1/2" 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 environments, reducing the risk of fastener failure.
- Superior corrosion resistance with a black-oxide finish, extending service life and minimizing maintenance in harsh conditions.
- Precision Class 3A thread fit provides tight tolerances and secure fastening, ideal for applications requiring vibration resistance.
- High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining integrity under repetitive loads.
- Partially threaded design allows for controlled clamping force and easier alignment in assembly operations.
- Coarse UNRC threads enable quick installation and reduced cross-threading risks, boosting efficiency.
- Compliance with ASTM A574 and environmental standards (RoHS 3 & REACH) ensures quality and safety for global supply chains.
Professional Applications & Engineering Value
This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to address critical challenges in heavy-duty machinery, automotive, and construction sectors. The alloy steel material combined with a black-oxide surface treatment provides robust corrosion resistance, preventing degradation in humid or chemically exposed environments. Its coarse UNRC thread and Class 3A fit ensure rapid, secure fastening even in high-vibration settings, reducing downtime. With a partially threaded rod and hex drive design, it simplifies installation in confined spaces, offering reliable clamping for structural assemblies. Ideal for industrial fasteners requiring high tensile strength and durability, this screw delivers long-term performance while meeting stringent ASTM A574 specifications.
Specification Summary & Compliance
This fastener features precise Class 3A thread fit with UNRC coarse threads and a 3/4"-10 thread size, ensuring dimensional accuracy per inch system standards. It complies with ASTM A574 for manufacturing consistency and is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, supporting environmentally responsible procurement.
