S-99663A216 Length 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Enhanced torque application and tool compatibility through the external hex/slotted drive, allowing for secure fastening with common tools.
• Efficient sheet metal penetration thanks to the pointed tip and thread forming design, reducing installation effort and preventing material cracking.
• Increased holding power and vibration resistance from the flanged design, which distributes load evenly and eliminates the need for separate washers.
• Full threading for maximum grip along the entire 5/8" length, ensuring consistent clamping force in sheet metal up to 0.025" thickness.
• Precision-engineered fit with No. 29 drill bit compatibility, providing reliable performance and reducing the risk of thread stripping.
• Compliance with environmental and safety standards, including RoHS 3 and REACH, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

This 316 stainless steel hex head tapping screw is engineered to address common challenges in sheet metal assembly, such as corrosion-induced failure and installation inefficiency. The thread forming design creates strong, clean threads without cutting, which minimizes debris and enhances joint integrity in materials like aluminum or thin-gauge steel. The external hex/slotted drive allows for high-torque application, reducing the risk of cam-out and speeding up production lines. With its flanged base, it provides a wider bearing surface, preventing pull-through and improving load distribution in dynamic or vibrating environments. Ideal for HVAC, automotive, and electronics enclosures, this screw ensures long-term reliability and reduces maintenance costs in demanding industrial settings.

Specification Summary & Compliance

This No. 8-15 x 5/8" tapping screw features a thread diameter of 0.164" with approximately 15 threads per inch, designed for use with a No. 29 drill bit (0.136" diameter) and a maximum drilling thickness of 0.025". It adheres to standard thread forming (Type A/AB) specifications and is fully threaded for consistent performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial applications.