S-91251A180 8-32 x 3/16" 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
- Exceptional tensile strength of 170,000 PSI ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Precision Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening in dynamic applications.
- Black-oxide coating on alloy steel offers enhanced corrosion resistance and a durable, non-reflective finish suitable for harsh environments.
- Fully threaded design allows for maximum grip and adjustability across the entire length, ideal for secure fastening in various material thicknesses.
- Hex socket drive (9/64") enables high-torque installation with reduced risk of cam-out, ensuring efficient assembly and maintenance.
- Rockwell C37 hardness provides excellent wear resistance, extending the screw's service life in repetitive or abrasive applications.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees consistent quality and environmental safety for global industrial use.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 8-32 UNC Socket Head Cap Screw addresses critical challenges like vibration-induced loosening and corrosion. The black-oxide alloy steel construction, combined with a coarse UNC thread and Class 3A fit, ensures secure fastening in machinery, automotive assemblies, and electronic enclosures where precision and durability are paramount. Its fully threaded design offers versatile clamping force distribution, while the hex drive facilitates easy installation in confined spaces. Ideal for applications requiring high tensile strength and resistance to environmental factors, this screw minimizes maintenance downtime and enhances operational reliability.
Specification Summary & Compliance
This screw adheres to Class 3A thread tolerances for precise fit and is manufactured per ASTM A574 specifications. It features a right-hand, coarse UNC thread with a diameter of 0.164" and length of 3/16". Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures it meets stringent environmental and safety standards for industrial use.
