S-90096A542 1/4"-20 x 1" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Efficient thread cutting action with Type F design eliminates need for pre-tapped holes, reducing installation time and labor costs
• Enhanced load distribution through integrated flange design prevents pull-through in softer materials like aluminum and sheet metal
• Dual-drive versatility with external hex/slotted head accommodates both wrench and screwdriver applications for flexible installation
• Reliable coarse threading with UNC 1/4"-20 profile provides excellent holding power in brittle materials like cast iron and brass
• Full-length threading ensures maximum engagement depth and superior fastening strength throughout the entire 1" length
• Industry-standard compliance meets ASME B18.6.3 specifications for consistent quality and dimensional accuracy

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional engineering value by solving critical fastening challenges in aluminum, brass, cast iron, and sheet metal applications. The Type F thread cutting design eliminates the need for separate tapping operations, significantly reducing assembly time and production costs. The flanged hex head provides superior bearing surface distribution, preventing material deformation in thin-section applications while the coarse UNC threading ensures reliable performance in brittle materials prone to stripping. With external hex/slotted drive compatibility, these screws offer installation flexibility for both high-torque assembly lines and maintenance applications, making them ideal for industrial equipment, metal fabrication, and automotive components where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

Manufactured to precise UNC 1/4"-20 coarse thread specifications with Class 2A tolerance for consistent fit and performance. These Type F thread cutting screws feature a 0.25" thread diameter and 1" fully threaded length with 0.52" flange diameter for optimal load distribution. Compliance includes ASME B18.6.3 manufacturing standards and RoHS 3 (2015/863/EU) environmental regulations, ensuring both mechanical reliability and environmental responsibility for industrial applications.