S-91864A080 3-48 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
- Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
- Exceptional tensile strength of 170,000 psi prevents stripping and failure under high-load applications
- Precise Class 3A thread fit ensures secure fastening with minimal vibration loosening in machinery assemblies
- Rockwell C37 hardness maintains structural integrity against wear and deformation during repeated use
- Hex socket drive design provides reliable torque transmission without cam-out in confined spaces
- Full-threaded construction offers consistent clamping force along the entire 3/4" length for uniform load distribution
- Regulatory compliance with RoHS 3 and REACH standards ensures environmental responsibility in global supply chains
Professional Applications & Engineering Value
Engineered for high-stress industrial applications, these black-oxide alloy steel socket head cap screws deliver exceptional performance in precision machinery, automotive assemblies, and heavy equipment. The 3-48 UNC coarse thread configuration provides rapid installation while maintaining vibration resistance in dynamic operating conditions. The ASTM A574 compliant manufacturing process ensures consistent metallurgical properties, while the fully threaded design enables adjustable positioning and maximum thread engagement. The hex drive system accommodates standard 5/64" tools for secure fastening in limited-clearance applications, making these screws ideal for maintenance-critical environments where reliability and corrosion resistance are paramount.
Specification Summary & Compliance
Manufactured to ASTM A574 specifications with Class 3A thread tolerance for precision fit. Features UNC coarse thread spacing with right-hand orientation and standard socket head profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Dimensions include 0.161" head diameter, 0.099" head height, and 3/4" fully threaded length with 5/64" hex drive compatibility.
