S-91251A906 10-32 x 5 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 finish for extended service life in harsh industrial environments
- Exceptional tensile strength (170,000 psi) withstands extreme mechanical loads and vibration
- Precision Class 3A thread fit ensures reliable, secure fastening with minimal play in critical assemblies
- Compact hex drive design (5/32") enables installation in confined spaces with standard tools
- Optimized thread engagement with 7/8" minimum thread length provides maximum holding power
- Consistent performance backed by ASTM A574 manufacturing standards and material certification
- Environmental compliance meets RoHS 3 and REACH regulations for global manufacturing applications
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw delivers critical performance advantages for precision machinery, automotive systems, and heavy equipment applications. The 10-32 UNF fine thread configuration with Class 3A fit provides superior vibration resistance and clamping force consistency in high-stress environments. The combination of 170,000 psi tensile strength and Rockwell C37 hardness ensures reliable performance under dynamic loading conditions, while the partially threaded design allows for precise positioning in structural assemblies. The hex drive socket head facilitates secure installation in space-constrained applications where wrench clearance is limited, making it ideal for maintenance-critical industrial equipment and precision manufacturing systems.
Specification Summary & Compliance
Manufactured to ASTM A574 specifications with Class 3A thread fit (UNF 10-32) ensuring precision dimensional accuracy. The 5-1/2" length with 7/8" minimum thread engagement provides optimal fastening performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards for global manufacturing applications. Material certification and traceability maintained for quality assurance in regulated industries.
