S-91251A345 10-32 x 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 tensile strength of 170,000 psi ensures reliable performance in high-stress industrial applications
- Superior corrosion resistance from black-oxide coating extends service life in demanding environments
- Precision Class 3A thread fit provides secure, vibration-resistant fastening with minimal play
- Fine UNRF thread design offers improved load distribution and better sealing capabilities
- High hardness rating (Rockwell C37) maintains thread integrity and prevents stripping during installation
- Hex socket drive design allows for high torque application and easy installation in confined spaces
- Full thread coverage along the entire 3/4" length ensures maximum engagement and holding power
Professional Applications & Engineering Value
These black-oxide alloy steel socket head cap screws are engineered to address critical fastening challenges in precision machinery, automotive assemblies, and industrial equipment. The 10-32 UNRF fine thread configuration with Class 3A fit provides superior vibration resistance and precise alignment in applications where minimal clearance and exact tolerances are paramount. The combination of 170,000 psi tensile strength and Rockwell C37 hardness ensures these fasteners maintain integrity under extreme mechanical stresses, while the black-oxide surface treatment offers enhanced corrosion protection without compromising dimensional accuracy. Ideal for CNC machinery, precision instruments, and high-performance automotive components where reliability and durability are non-negotiable.
Specification Summary & Compliance
This socket head cap screw features precise Class 3A thread fit with 10-32 UNRF fine threads and right-hand thread direction. Manufactured to ASTM A574 specifications with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations. The fastener maintains dimensional accuracy with 5/32" hex drive, 5/16" head diameter, and consistent 0.19" thread diameter throughout the 3/4" fully threaded length, ensuring reliable performance in precision engineering applications.
