S-94059A552 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in harsh industrial environments
• Integrated weatherproof sealing through the steel/rubber washer, preventing moisture ingress and enhancing joint integrity
• Effortless self-drilling installation with the No. 3 drill tip, eliminating pre-drilling and saving valuable assembly time
• High-strength thread forming design (BSD type) creates durable, vibration-resistant threads in steel and sheet metal up to 0.21" thick
• Secure external hex drive provides reliable torque transmission and prevents stripping during high-torque applications
• Full threading along the 2-1/2" length ensures maximum grip and uniform load distribution across the fastened materials
• Versatile heavy-duty fastening for steel and sheet metal applications, from construction to industrial machinery assembly

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these zinc-plated steel tapping screws combine thread forming technology with integrated sealing washers to solve critical fastening challenges. The self-drilling tip (No. 3 drill type) penetrates up to 0.21" thick steel and sheet metal without pilot holes, significantly reducing installation time and labor costs. The external hex drive ensures secure tool engagement during high-torque assembly, while the steel/rubber washer creates a reliable seal against environmental elements. These BSD tapping screws are ideal for HVAC systems, metal building construction, and industrial equipment where vibration resistance and weatherproofing are essential for long-term structural integrity.

Specification Summary & Compliance

This 1/4"-14 x 2-1/2" tapping screw features inch system measurements with right-hand threads and fully threaded design. Manufactured to BSD standards for thread forming screws, it ensures precise thread engagement in steel and sheet metal applications. The zinc-plated steel construction and steel/rubber flat washer (5/8" OD) provide enhanced corrosion protection. Complies with industry standards for heavy-duty fasteners and meets RoHS and REACH environmental requirements for safe industrial use.