S-90128A384 1/4"-28 x 1 3/4" 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 under high-stress conditions, reducing the risk of fastener failure.
- Zinc-plated alloy steel construction provides superior corrosion resistance, extending service life in demanding industrial environments.
- Class 3A thread fit offers precise, tight tolerances for secure fastening and vibration resistance in critical assemblies.
- Fine UNF thread spacing delivers enhanced clamping force and improved load distribution compared to coarse threads.
- Partially threaded design allows for precise positioning and reduced thread galling in specific application zones.
- Rockwell C37 hardness ensures high durability and wear resistance, maintaining integrity through repeated use.
- 3/16" hex drive socket head enables easy installation and removal with standard tools, minimizing assembly time.
Professional Applications & Engineering Value
Engineered for high-performance industrial applications, this 1/4"-28 UNF Socket Head Cap Screw addresses critical engineering challenges where vibration resistance and structural integrity are paramount. The zinc-plated alloy steel material combats corrosion in harsh environments, while the fine thread spacing and Class 3A thread fit provide superior clamping force and prevent loosening under dynamic loads. Ideal for machinery, automotive, and precision equipment assemblies, its partially threaded rod type allows for exact placement without compromising thread engagement. The hex drive socket head facilitates efficient installation in confined spaces, reducing labor costs and enhancing productivity in B2B procurement scenarios.
Specification Summary & Compliance
This socket head cap screw features a 1/4"-28 UNF thread with Class 3A thread fit for precise dimensional accuracy, and a length of 1 3/4" with a minimum thread length of 1 1/4". Manufactured to ASTM A574 specifications, it ensures consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety standards for industrial use.
