S-91251A157 6-32 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, ideal for harsh industrial environments
- Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications
- Precise Class 3A thread fit provides secure, vibration-resistant fastening with minimal backlash
- Rockwell C37 hardness delivers excellent wear resistance and long service life
- Standard hex socket drive allows for easy installation with common tools in confined spaces
- Comprehensive compliance with ASTM A574, RoHS 3, and REACH ensures material quality and environmental safety
- Partially threaded design offers optimal grip strength while reducing material usage
Professional Applications & Engineering Value
These 6-32 UNC thread socket head cap screws provide critical solutions for precision assembly challenges across multiple industries. The black-oxide alloy steel construction combined with Class 3A thread fit ensures reliable performance in machinery, automotive, and electronic enclosures where vibration resistance and dimensional accuracy are paramount. The coarse thread spacing facilitates quicker installation while maintaining holding power, making them ideal for production lines requiring efficiency. With 170,000 psi tensile strength and corrosion-resistant properties, these fasteners prevent joint failure in demanding applications while complying with international environmental standards, offering engineers a trusted component for critical assemblies.
Specification Summary & Compliance
Manufactured to precise Class 3A thread fit standards with UNC coarse thread spacing and right-hand threading. The 1-1/2" length with 3/4" minimum thread length ensures consistent engagement. These screws meet ASTM A574 specification for alloy steel socket head cap screws and comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing both mechanical performance and regulatory adherence for global industrial applications.
