S-94058A559 Length 4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated 410 stainless steel construction for extended service life in harsh environments
• Integrated sealing washer creates reliable moisture and dust barriers in sheet metal and stainless steel applications
• Self-drilling capability with No. 3 drill tip eliminates pre-drilling requirements, saving installation time and labor costs
• Thread forming design creates stronger, tighter threads in parent material without chip removal
• External hex drive provides maximum torque transmission and prevents stripping during high-torque applications
• Full threading along the 4" length ensures consistent holding power throughout the entire fastener engagement
• Regulatory compliance with RoHS 3 and REACH standards meets international environmental and safety requirements

Professional Applications & Engineering Value

These 1/4"-14 thread forming tapping screws deliver exceptional performance in demanding stainless steel and sheet metal applications where corrosion resistance and sealing integrity are critical. The zinc-plated 410 stainless steel construction provides enhanced protection against rust and chemical exposure, while the integrated stainless steel/rubber sealing washer prevents fluid ingress and environmental contamination. The combination of thread forming technology and self-drilling tip eliminates multiple installation steps, reducing assembly time and minimizing the risk of cross-threading in precision metal work. These BSD tapping screws are engineered for structural applications requiring reliable fastening in materials up to 0.21" thickness, making them ideal for HVAC systems, electrical enclosures, and industrial equipment manufacturing where vibration resistance and long-term durability are essential.

Specification Summary & Compliance

These 1/4"-14 thread forming screws feature precision right-hand threads with 14 threads per inch and fully threaded shanks for maximum engagement. The external hex drive with 3/8" head width ensures secure tool engagement during installation. Manufactured to BSD tapping screw standards with Class 2A thread tolerances, these fasteners maintain dimensional accuracy across production batches. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety standards are met for industrial applications worldwide.