S-91251A287 10-32 x 1 5/8" 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 alloy steel coating, extending service life in harsh industrial environments
- Exceptional tensile strength of 170,000 PSI for reliable performance in heavy-duty mechanical assemblies
- Precision Class 3A thread fit ensures secure fastening with minimal backlash in critical applications
- Fine UNF threading provides enhanced vibration resistance and improved load distribution
- Hex socket drive design allows high-torque installation in confined spaces with standard tools
- Rockwell C37 hardness rating maintains structural integrity under repeated stress cycles
- Regulatory compliance with RoHS 3 and REACH standards for international project suitability
Professional Applications & Engineering Value
These 10-32 UNF socket head cap screws solve critical engineering challenges in precision machinery, automotive systems, and industrial equipment. The black-oxide alloy steel construction provides superior protection against corrosion while maintaining 170,000 PSI tensile strength for high-stress applications. The fine UNF threads with Class 3A fit prevent loosening under vibration, making them ideal for dynamic load environments. The hex drive socket enables efficient installation in tight spaces, while the partially threaded design offers optimal clamping force distribution. These ASTM A574 certified fasteners deliver reliable performance in aerospace components, manufacturing jigs, and precision instrumentation where failure is not an option.
Specification Summary & Compliance
Manufactured to ASTM A574 specifications with Class 3A thread fit precision and UNF fine thread standards. The 10-32 thread size features right-hand orientation with 0.19" thread diameter and 7/8" minimum thread length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures global acceptability for industrial applications requiring stringent material restrictions.
