S-90303A112 10-32 x 5/8" ASME B18.3, ASTM A574 Nylon-Tip Alloy Steel Socket Head Screws
Nylon-Tip 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
- Non-marring nylon tip protects sensitive surfaces from scratches and damage during assembly and use.
- Exceptional tensile strength of 180,000 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 for secure, long-lasting assemblies.
- Black-oxide finish on alloy steel offers enhanced corrosion resistance and a durable, professional appearance.
- Wide temperature tolerance (-50° to 250°F) allows for consistent performance in diverse environmental conditions.
- Hex socket drive design enables high-torque installation and removal with standard tools, improving assembly efficiency.
- Fully threaded shank ensures maximum grip and load distribution along the entire fastener length.
Professional Applications & Engineering Value
This 10-32 UNF socket head cap screw is engineered for precision applications where surface protection and high clamping force are critical. The black-oxide alloy steel construction provides excellent strength and moderate corrosion resistance, ideal for machinery, automotive, and electronic enclosures. The non-marring nylon tip is essential for assemblies involving delicate materials like anodized aluminum or finished plastics, preventing cosmetic and functional damage. With its fine thread spacing and Class 3A fit, it ensures tight, secure fastening in high-vibration environments, reducing maintenance needs and enhancing product longevity. The combination of Rockwell C39 hardness and a fully threaded design makes it a reliable choice for demanding industrial and engineering projects.
Specification Summary & Compliance
This screw adheres to Class 3A thread fit tolerances for precise engagement and is manufactured in accordance with ASME B18.3 and ASTM A574 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.
