S-91251A352 10-32 x 1 3/4" 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 corrosion resistance from the black-oxide finish, extending service life in harsh industrial environments
- Superior tensile strength (170,000 psi) for reliable performance under high-stress conditions and demanding applications
- Precise Class 3A thread fit ensures tighter tolerances and secure, vibration-resistant fastening
- Fine UNRF threads provide improved load distribution and enhanced clamping force compared to coarse threads
- Partially threaded design allows for precise positioning and reduced risk of cross-threading during assembly
- Rockwell C37 hardness delivers excellent wear resistance and durability for long-term use
- 5/32" hex drive compatibility offers easy installation with standard tools while preventing stripping
Professional Applications & Engineering Value
These socket head cap screws are engineered with black-oxide alloy steel to address critical industrial challenges such as corrosion in humid or chemically aggressive environments. The 10-32 UNRF fine thread configuration provides superior resistance to loosening under vibration, making them ideal for precision machinery, automotive assemblies, and aerospace components where reliability is paramount. With a partially threaded shank, they enable accurate placement in threaded holes while minimizing galling. The combination of 170,000 psi tensile strength and Rockwell C37 hardness ensures these fasteners maintain integrity in high-load applications, reducing maintenance frequency and downtime in production systems.
Specification Summary & Compliance
This screw meets ASTM A574 specifications, ensuring consistent quality and performance. Threads conform to Class 3A dimensional tolerances for precise fit, with UNRF fine thread spacing and right-hand direction. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and suitability for global industrial supply chains.
