S-91251A338 10-32 x 1/4" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional tensile strength of 170,000 psi for reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance with Black-Oxide coating, extending service life in demanding industrial environments.
- Precision Class 3A thread fit ensures tight, secure connections with minimal play, enhancing assembly integrity.
- Fine thread spacing provides improved vibration resistance and superior holding power compared to coarse threads.
- High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Standard hex drive compatibility with 5/32" drive size allows for easy installation using common tools.
- Full threading along the 1/4" length enables maximum adjustability and secure fastening in various material thicknesses.
Professional Applications & Engineering Value
These 10-32 UNRF Class 3A socket head cap screws deliver critical engineering advantages for industrial applications where precision and reliability are paramount. The Black-Oxide Alloy Steel construction combined with fine UNRF thread form provides exceptional resistance to loosening under vibration, making them ideal for machinery, automotive assemblies, and precision equipment. The socket head design with standard hex drive profile allows for high torque application in confined spaces, while the fully threaded configuration ensures consistent clamping force distribution. These fasteners solve common industrial challenges by maintaining dimensional stability under heavy loads and offering superior corrosion protection without requiring additional surface treatments.
Specification Summary & Compliance
Manufactured to exacting Class 3A thread fit tolerances with UNRF fine thread specifications, these screws maintain precise dimensional accuracy. The product meets ASTM A574 manufacturing standards for socket head cap screws and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
