S-96024A440 1/4"-20 x 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 410 stainless steel construction for long-lasting performance in demanding industrial environments
• Excellent thread cutting capability creates precise mating threads in brass, cast iron, and sheet metal without pre-tapping
• Secure external hex drive provides maximum torque transmission and prevents stripping during installation
• Integrated flange design eliminates the need for separate washers while distributing clamping force evenly
• Full threading along entire shank ensures consistent grip strength and prevents material separation
• Coarse UNC thread pattern delivers faster installation and superior holding power in softer materials
• Comprehensive regulatory compliance meets RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

Engineered for demanding metalworking applications, these 410 stainless steel tapping screws solve critical fastening challenges in brass, cast iron, and sheet metal assemblies. The thread cutting design eliminates the need for separate tapping operations, significantly reducing installation time and labor costs in high-volume production environments. The flanged hex head configuration provides superior bearing surface distribution, preventing material deformation while maintaining consistent clamping pressure. With fully threaded coarse UNC patterning, these screws deliver exceptional pull-out resistance in both thick and thin-section materials, making them ideal for heavy-duty industrial equipment, machinery frames, and structural metal fabrications where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This 1/4"-20 UNC thread cutting screw features precision Class 2A thread tolerances with coarse thread spacing for optimal performance in metal applications. The external hex drive (3/8" across flats) ensures compatibility with standard industrial tools. Manufactured to exacting standards, these screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no substances of very high concern. Recommended drill bit size: No. 1 (0.228" diameter) for proper thread engagement in designated materials.