S-92929A225 1/4"-20 x 7/8" ASME B18.6.3 Plastic Slotted Flat Head Screws
Plastic Slotted Flat 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 thanks to high-quality nylon plastic construction, eliminating rust and chemical degradation in harsh environments
- Excellent electrical insulation properties for safe use in electrical assemblies and sensitive electronic applications
- Reliable thread engagement with 1/4"-20 UNC coarse threads and Class 2A fit, ensuring secure fastening and vibration resistance
- Optimized flush mounting featuring an 82° countersink angle and undercut flat head design for smooth, unobtrusive surface finishes
- Wide temperature tolerance from -40° to 185°F, maintaining performance in both extreme cold and moderate heat conditions
- Full threading along the 7/8" length provides maximum grip and adjustability across the entire fastener
- Industry-standard compliance with ASME B18.6.3 and RoHS 3, guaranteeing quality and environmental safety for professional use
Professional Applications & Engineering Value
This nylon plastic flat head screw delivers critical solutions for industries requiring non-conductive, non-corrosive fastening. Its UNC coarse threads and Class 2A fit ensure quick assembly and reliable hold in plastics, composites, and soft metals, reducing the risk of stripping. The undercut flat head and 82° countersink angle allow for a flush finish, ideal for applications where protrusion is unacceptable, such as in consumer electronics, marine equipment, and food processing machinery. The material’s inherent electrical insulation and resistance to a wide temperature range make it perfect for outdoor, automotive, and electrical enclosures, providing long-term durability without metal-related issues like galvanic corrosion.
Specification Summary & Compliance
This screw adheres to ASME B18.6.3 specifications for dimensional accuracy and performance. Threads are manufactured to UNC coarse standards with a Class 2A fit for consistent engagement. The product is fully compliant with RoHS 3 (2015/863/EU), ensuring it is free from hazardous substances, and is designed for right-hand threading with a 7/8" fully threaded length.
