S-92929A228 1/4"-20 x 1 1/4" ASME B18.6.3 Plastic Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant nylon construction ensures long-lasting performance in humid or chemically exposed environments without rust or degradation.
• Wide temperature tolerance from -40°F to 185°F maintains structural integrity and reliability in both freezing and elevated temperature applications.
• Class 2A thread fit with UNC coarse spacing provides easy, quick assembly and secure fastening, reducing installation time and errors.
• Undercut flat head design with 82° countersink angle allows for a flush, low-profile finish that minimizes protrusion and improves aesthetics.
• Full threading and right-hand direction offer consistent grip and uniform load distribution, enhancing joint strength in plastic assemblies.
• Compliance with ASME B18.6.3 and RoHS 3 guarantees adherence to industry standards for safety, quality, and environmental regulations.
• Slotted drive style enables simple installation with common tools, facilitating maintenance and adjustments in tight spaces.

Professional Applications & Engineering Value

This 1/4-20 UNC nylon flat head screw is engineered to address common industrial challenges, such as corrosion in electrical enclosures, moisture-prone equipment, and food processing machinery. The nylon plastic material provides excellent electrical insulation and lightweight properties, reducing galvanic corrosion risks when used with dissimilar metals. Its fully threaded coarse spacing and Class 2A fit ensure reliable engagement in plastic or soft material substrates, preventing stripping and vibration loosening. Ideal for applications like panel fastening, consumer electronics, and automotive components, this screw’s temperature-resistant and RoHS 3 compliant design supports sustainable, high-performance assembly solutions without compromising on ASME B18.6.3 specifications.

Specification Summary & Compliance

This screw features precise inch system measurements with a 1/4"-20 UNC thread size, Class 2A thread fit for standard tolerance, and coarse thread spacing to facilitate rapid installation. It adheres to ASME B18.6.3 manufacturing standards, ensuring dimensional accuracy and performance consistency. The product is fully RoHS 3 (2015/863/EU) compliant, confirming it is free from hazardous substances, and is designed for use in regulated industries requiring environmental and safety conformity.