S-99663A156 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• Enhanced torque transmission and secure fastening via the external hex/flanged head design, preventing cam-out and ensuring reliable installation.
li>Efficient thread-forming action creates strong, permanent threads in sheet metal, eliminating the need for a separate tapping operation.
• Full threading and pointed tip for faster driving and improved alignment, speeding up assembly processes.
• Precision compatibility with a No. 32 drill bit (0.116" diameter), ensuring a proper fit and optimal performance in pre-drilled holes.
• Compliance with major environmental regulations including RoHS 3 and REACH, guaranteeing safety and suitability for regulated industries.
• Durable flanged design provides a larger bearing surface, distributing clamp load effectively and reducing the risk of material damage.

Professional Applications & Engineering Value

This No. 6 x 3/4" 316 Stainless Steel Flanged Hex Head Tapping Screw is engineered to solve critical challenges in sheet metal fabrication and assembly. Its thread-forming design, with an 18 TPI thread and pointed tip, cuts installation time by forming its own mating threads without generating chips, which is vital for maintaining clean, debris-free assemblies. The external hex drive combined with the flanged head offers superior resistance to stripping under high torque, a common failure point in repetitive industrial use. Manufactured from 316 stainless steel, it provides exceptional resistance to chemicals and chlorides, making it the fastener of choice for applications exposed to corrosive elements, from outdoor enclosures to marine and chemical processing equipment, ensuring long-term structural integrity and reliability.

Specification Summary & Compliance

This tapping screw conforms to standard inch dimensions: a No. 6 screw size with a 0.138" thread diameter and 3/4" length, featuring a right-hand thread that is fully threaded. It is designed for use with a No. 32 drill bit (0.116" diameter) in materials up to 0.025" thick. The product is manufactured to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety standards for industrial components.