S-90117A624 3/8"-16 x 1" ASME B18.3 Alloy Steel Wire-Lockable Socket Head Screws
Alloy Steel Wire-Lockable 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 demanding environments
- Exceptional mechanical strength with 170,000 psi tensile rating and Rockwell C37 hardness for high-stress applications
- Precise Class 3A thread fit ensures reliable engagement and vibration resistance in critical assemblies
- Optimized hex drive system with 5/16" drive size provides superior torque transmission and reduced cam-out risk
- Full thread coverage along the 1" length enables maximum adjustability and load distribution
- Industry-standard compliance with ASME B18.3 guarantees dimensional accuracy and interchangeability
- Environmental regulation adherence through RoHS 3 and REACH compliance for global supply chain compatibility
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw delivers critical performance advantages for industrial equipment, machinery, and precision assemblies. The 3/8"-16 UNC coarse thread configuration with Class 3A fit provides rapid installation while maintaining secure fastening in high-vibration environments. Engineered with 170,000 psi tensile strength and Rockwell C37 hardness, these screws withstand extreme mechanical stresses in automotive, aerospace, and heavy equipment applications. The black-oxide surface treatment offers enhanced corrosion protection without dimensional compromise, while the standard hex socket drive enables efficient installation in confined spaces. These industrial fasteners are specifically designed to prevent joint failure and reduce maintenance frequency in critical connections.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit for superior dimensional accuracy. Features 3/8"-16 UNC coarse threads with right-hand thread direction and fully threaded design. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial markets and restricted substance requirements.
