S-99477A117 10-32 x 3/8" ASME B18.3, UL 94 HB Plastic Socket Head Screws
Plastic 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
- Corrosion-resistant polypropylene construction ensures long-term reliability in humid or chemically exposed environments without rust or degradation.
- 4500 psi tensile strength provides dependable holding power for light to medium-duty industrial assemblies.
- Wide operating temperature range (-20° to 180°F) maintains performance stability across various climate and processing conditions.
- Class 2A fine thread fit delivers precise engagement and vibration resistance in precision machined components.
- 5/32" hex socket drive enables secure tool engagement and efficient installation in confined spaces.
- Full compliance with ASME B18.3, RoHS 3, and REACH guarantees regulatory adherence for global manufacturing applications.
- Off-white color and plastic composition offers aesthetic consistency and electrical insulation properties.
Professional Applications & Engineering Value
Engineered for precision assemblies requiring chemical resistance and electrical insulation, this 10-32 UNF socket head cap screw solves critical challenges in electronics enclosures, food processing equipment, and laboratory instrumentation. The polypropylene plastic construction eliminates galvanic corrosion risks when mating with dissimilar metals while providing excellent dielectric properties. With its fine thread spacing and Class 2A thread fit, this fastener maintains secure connections in vibration-prone applications where metal fasteners might loosen. The standard socket head profile combined with 5/32" hex drive ensures reliable tool engagement for consistent torque application in automated or manual assembly processes.
Specification Summary & Compliance
This fully threaded fastener features 10-32 UNF fine threads with Class 2A tolerance for precision fit. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances per the latest SVHC list. Thread direction is right-hand with standard socket head profile measuring 5/16" diameter and 0.19" height.
