S-90628A311 Length 4" Tapping Screws

Key Features & Benefits at a Glance

• Enhanced corrosion protection with corrosion-resistant coated steel construction for extended service life in harsh environments
• Superior sealing and vibration resistance with integrated steel/rubber flat washer to prevent loosening and provide environmental sealing
• High-efficiency installation with self-drilling tip (No. 3 type) that eliminates pre-drilling, saving time and labor costs
• Exceptional thread-forming grip with BSD thread-forming design and 14 threads per inch for strong, reliable fastening in steel and sheet metal
• Robust drive engagement featuring an external hex head for high-torque application and secure installation
• Full-length thread engagement with a 4" fully threaded shank for maximum holding power across the entire fastener length
• Compliance with environmental standards, meeting RoHS 3 (2015/863/EU) requirements for safe and regulated industrial use

Professional Applications & Engineering Value

Engineered for demanding steel and sheet metal applications, these No. 12 tapping screws deliver significant engineering value by addressing common installation challenges. The corrosion-resistant coated steel material ensures long-term durability, resisting environmental degradation in industrial settings. The thread-forming (BSD) design with a drilling tip creates precise, strong threads in the base material, eliminating the need for separate tapping operations and reducing assembly time. This is particularly valuable in high-volume production environments. The inclusion of a sealing washer provides an added layer of protection against moisture and vibration, making these fully threaded screws ideal for construction, HVAC, and metal fabrication where reliability is critical.

Specification Summary & Compliance

This No. 12 x 4" tapping screw features a right-hand thread, fully threaded shank, and an external hex drive for secure installation. It is manufactured to precise dimensional standards, including a thread diameter of 0.216" and 14 threads per inch. The product is RoHS 3 (2015/863/EU) Compliant, ensuring it meets stringent environmental regulations for hazardous substance restrictions.