S-92485A705 1/4"-20 x 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 410 stainless steel construction for long-lasting performance in demanding industrial environments.
• Efficient self-tapping installation with Type F thread cutting design, eliminating the need for pre-tapped holes in materials like brass, cast iron, and sheet metal.
• Secure and flush fastening thanks to the standard flat head profile and 82° countersink angle, providing a smooth surface finish.
• High torque transfer and reduced cam-out with the No. 3 Phillips drive, ensuring reliable driving and assembly efficiency.
• Excellent holding power from the UNC coarse thread and full threading, delivering strong grip in various base materials.
• Wide material compatibility specifically engineered for use in brass, cast iron, and sheet metal applications.
• Regulatory peace of mind with compliance to RoHS 3 and REACH standards, ensuring environmental and safety requirements are met.

Professional Applications & Engineering Value

This 410 stainless steel Phillips flat head tapping screw is engineered to solve common fastening challenges in industrial assembly. Its thread cutting Type F design allows for easy installation in tough materials like brass, cast iron, and sheet metal, creating strong, permanent threads without pre-tapping. The UNC coarse spacing and fully threaded shank ensure rapid insertion and superior pull-out resistance, reducing assembly time and labor costs. The flat head with an 82° countersink angle sits flush to prevent snagging and improve aesthetics. Ideal for durable fastening in machinery, automotive, and metal fabrication, this screw combines material strength with precision engineering to enhance reliability and longevity in high-stress applications.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with standard Class 2A tolerances for consistent fit. It is manufactured as a Type F thread cutting tapping screw with a blunt tip and right-hand thread direction. Key dimensions include a 0.477" head diameter, 0.153" head height, and 3/4" length, designed for use with a No. 1 drill bit (0.228" diameter). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and health standards for industrial use.