S-99461A440 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic materials thanks to the Tri-Lobe shank design that displaces material to create durable, vibration-resistant threads.
• Excellent corrosion resistance provided by 18-8 Stainless Steel construction, ensuring long-term reliability in various environments.
• Efficient and secure installation with the Phillips No. 2 drive and pan head, offering a common, user-friendly driving experience.
• Reduced risk of material cracking during installation due to the thread-forming (TRS) design and blunt tip, ideal for plastic substrates.
li>High thread engagement and pull-out strength with 14 threads per inch and full threading along the 3/8" length for a robust connection.
• Compliance with stringent environmental regulations, being RoHS 3 and REACH compliant for safe use in industrial and commercial applications.
• Simplified assembly process as it is designed for use with a standard No. 21 drill bit (0.159" diameter), minimizing preparation time.

Professional Applications & Engineering Value

This No. 10 x 3/8" TRS Tri-Lobe tapping screw is engineered specifically for plastic applications, where traditional fasteners often fail due to stripping or low holding power. The Tri-Lobe shank cross-section and thread-forming (TRS) design displace plastic material to form strong, permanent internal threads, eliminating the need for inserts and reducing assembly costs. Made from 18-8 Stainless Steel, it offers exceptional corrosion resistance, making it suitable for harsh environments or outdoor use. The Phillips drive and pan head ensure easy installation with common tools, while the blunt tip prevents piercing through thin plastic walls. Ideal for electronics enclosures, automotive plastic components, and consumer goods, this screw provides reliable, long-lasting fastening without compromising material integrity.

Specification Summary & Compliance

This screw features a No. 10 size with a 3/8" length and right-hand thread direction. It has a thread diameter of 0.19" and approximately 14 threads per inch, ensuring precise fit. The Tri-Lobe shank and thread-forming (TRS) tapping method are designed for optimal performance in plastics, with a recommended No. 21 drill bit size (0.159" diameter) for pilot holes. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.