S-97349A310 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for humid or chemically exposed environments in plastic assemblies.
• Efficient thread forming design (DST type) creates strong, permanent threads in plastic without pre-tapping, reducing assembly time and tooling costs.
• Secure, slip-resistant fastening from the Phillips No. 2 drive and pan head, ensuring consistent torque application and preventing cam-out during installation.
• Optimized for plastic materials with a blunt tip and fully threaded shank, minimizing stress cracking and providing reliable holding power.
• Precision compatibility with standard No. 29 drill bits (0.136" diameter), ensuring proper fit and reducing the risk of material damage.
• Full regulatory compliance with RoHS 3 and REACH standards, guaranteeing safe use in industrial and consumer products without hazardous substances.
• Durable, long-lasting performance due to the rounded pan head profile and high thread count (18 TPI), offering excellent vibration resistance in dynamic applications.

Professional Applications & Engineering Value

These No. 8 x 3/4" stainless steel tapping screws are specifically engineered for plastic assembly challenges, where traditional fasteners may cause splitting or stripping. The thread forming (DST) technology displaces material to create robust internal threads, eliminating the need for separate inserts and reducing part count. Made from 18-8 stainless steel, they resist rust and corrosion in demanding environments like outdoor equipment, automotive interiors, and electronic enclosures. The Phillips pan head design ensures a low-profile, flush finish while providing ample drive engagement, making them ideal for high-volume production lines. By integrating RoHS 3 and REACH compliance, these screws meet stringent international regulations, ensuring reliability in consumer goods and industrial machinery without compromising on safety or performance.

Specification Summary & Compliance

This tapping screw features a No. 8 size with 0.164" thread diameter and 18 threads per inch, fully threaded for maximum grip. The 3/4" length and pan head (0.27" diameter) adhere to standard dimensional tolerances for consistent fit. It is designed for use with a No. 29 drill bit (0.136" diameter) in plastic substrates, following common industrial practices. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring adherence to environmental and safety standards for hazardous substance restrictions.