S-90128A630 3/8"-16 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 in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc plating extends service life in harsh industrial environments, minimizing maintenance needs.
- Precise Class 3A thread fit provides tight tolerances for secure fastening and vibration resistance in demanding assemblies.
- High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Coarse UNC threading enables quick installation and superior grip in various materials, improving assembly efficiency.
- Hex socket drive design allows for high torque application and secure tool engagement in confined spaces.
- Compliance with ASTM A574 guarantees consistent quality and performance meeting industrial standards.
Professional Applications & Engineering Value
These zinc-plated alloy steel socket head cap screws deliver critical engineering advantages for heavy-duty applications where reliability is paramount. The combination of 170,000 PSI tensile strength and Rockwell C37 hardness ensures these fasteners withstand extreme mechanical stresses without deformation or failure. The UNC coarse thread configuration provides superior holding power in both metallic and composite materials, while the Class 3A thread fit maintains precise engagement in high-vibration environments common in industrial machinery, automotive assemblies, and construction equipment. The partially threaded design offers optimal clamping force distribution, making these socket head cap screws ideal for critical joints requiring both strength and precision alignment.
Specification Summary & Compliance
This 3/8"-16 UNC socket head cap screw features precise Class 3A thread fit tolerances and coarse thread spacing per UNC standards. Manufactured to ASTM A574 specifications for consistent quality and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries.
