S-92929A231 1/4"-20 x 1 1/2" ASME B18.6.3 Plastic Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance thanks to durable nylon plastic construction, eliminating rust issues in harsh environments
• Superior electrical insulation properties for safe use in electrical assemblies and sensitive electronic applications
• Wide temperature tolerance from -40°F to 185°F maintains performance across diverse operating conditions
• Precision Class 2A thread fit ensures smooth installation and reliable fastening in UNC coarse thread applications
• 100° countersink angle design provides flush mounting with standard flat head profiles for clean, professional finishes
• Full threading along 1½" length delivers maximum grip and holding power throughout the entire fastener engagement
• Compliance with industry standards including ASME B18.6.3 and RoHS 3 for quality assurance and regulatory acceptance

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these nylon plastic flat head screws solve critical challenges where metal fasteners fail. The non-conductive properties make them ideal for electrical enclosures, control panels, and electronic assemblies where electrical insulation is paramount. Their inherent corrosion resistance eliminates galvanic corrosion concerns in chemical processing, marine applications, and outdoor equipment. The UNC coarse thread with Class 2A fit provides excellent engagement in plastic and soft materials, while the 100° countersink ensures secure, flush mounting in precision assemblies. These fully threaded screws maintain integrity across extreme temperature fluctuations from -40° to 185°F, offering reliable performance in HVAC systems, automotive components, and industrial machinery where thermal stability is critical.

Specification Summary & Compliance

This 1/4"-20 flat head slotted screw features precision UNC coarse threads with Class 2A thread fit tolerance for consistent performance. Manufactured to meet ASME B18.6.3 specifications for dimensional accuracy and mechanical requirements. The product is RoHS 3 (2015/863/EU) compliant and features right-hand threading, standard flat head profile, and 100° countersink angle as specified. All dimensions including the 1½" length, 0.507" head diameter, and 0.25" thread diameter conform to established industrial standards for reliable interchangeability and assembly performance.