S-90054A420 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Enhanced driving efficiency through combined external hex/slotted head design allowing multiple tool options and high torque application
• Secure fastening in sheet metal with thread forming (A/AB type) technology that creates stronger threads without chip removal
• Increased load distribution thanks to integrated flange design that eliminates the need for separate washers
• Optimized thread engagement with 10 TPI right-hand threads and full threading along the 1-1/2" length for maximum holding power
• Precision installation enabled by pointed tip design and compatibility with standard 6.9 mm (0.2717") drill bits
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global market acceptance and environmental safety

Professional Applications & Engineering Value

These zinc-plated steel flanged tapping screws deliver exceptional performance in sheet metal applications where vibration resistance and long-term reliability are critical. The thread forming design eliminates the risk of loose fasteners by creating permanent, secure threads in pre-drilled materials without generating metal chips. The combination of external hex drive and slotted head provides flexibility for various installation tools while maintaining high torque capability. The integrated flange feature distributes clamping force evenly, preventing material distortion in thin-gauge metals up to 0.025" thickness. These industrial screws are engineered to withstand harsh conditions while maintaining their structural integrity, making them ideal for HVAC systems, electrical enclosures, and metal fabrication projects requiring dependable fastening solutions.

Specification Summary & Compliance

These 5/16" tapping screws feature a 0.313" thread diameter with 10 TPI right-hand threads in Class 2A thread fit for standard industrial applications. The A/AB thread forming type complies with industry standards for self-tapping fasteners. Manufacturing and material composition adhere to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental safety and regulatory acceptance for international markets. The screws are designed for use with 0.2717" (6.9 mm) drill bits and accommodate maximum drilling thickness of 0.025" in sheet metal applications.