S-91251A351 10-32 x 1 1/2" 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
- Superior corrosion resistance with black-oxide coating, extending service life in demanding environments
- Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress applications
- Precise Class 3A thread fit provides superior engagement and vibration resistance in fine-thread assemblies
- Rockwell C37 hardness maintains structural integrity and prevents stripping during installation
- Deep 7/8" minimum thread engagement offers secure fastening in limited-space applications
- Standard hex socket drive allows for high-torque installation with common industrial tools
- Comprehensive regulatory compliance ensures environmental and safety standards are met globally
Professional Applications & Engineering Value
Engineered for precision applications where reliability and strength are paramount, these black-oxide alloy steel socket head cap screws solve critical fastening challenges in industrial machinery, automotive assemblies, and precision equipment. The 10-32 UNRF fine thread configuration with Class 3A tolerance ensures leak-proof seals and vibration-resistant connections in high-pressure systems. The combination of 170,000 psi tensile strength and Rockwell C37 hardness prevents thread deformation under cyclic loading, while the black-oxide surface treatment provides essential corrosion protection without dimensional interference. These partially threaded fasteners offer optimal clamping force distribution, making them ideal for securing critical components in aerospace, manufacturing, and heavy equipment applications where failure is not an option.
Specification Summary & Compliance
Manufactured to ASTM A574 specifications with Class 3A thread fit and UNRF fine thread profile ensuring precision dimensional accuracy. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 5/32" hex drive and standard socket head profile maintain compatibility with industrial tooling systems, while the right-hand thread direction and 1-1/2" length provide standardized installation across applications.
