S-97349A419 Length 1" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for humid or demanding environments.
• Efficient thread forming design creates strong, permanent threads in plastic without pre-tapping, reducing assembly time.
• Reliable drive engagement with the Phillips No. 1 drive, minimizing cam-out and ensuring secure installation.
• Optimized for plastic materials with a blunt tip and DST thread type to prevent material cracking and ensure excellent pull-out resistance.
• Full 1-inch threading provides maximum grip length and uniform stress distribution for enhanced holding power.
• Wide compatibility with a standard No. 44 drill bit (0.086" diameter), simplifying hole preparation.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in various industries.

Professional Applications & Engineering Value

These No. 4 x 1" tapping screws are precision-engineered for plastic assembly applications, where material integrity and fastener reliability are critical. The 18-8 stainless steel offers excellent resistance to rust and corrosion, making these screws suitable for outdoor, marine, or chemical-exposed environments. The thread forming (DST) design displaces plastic material during installation, creating a tight, vibration-resistant fit without generating chips. This eliminates the need for threaded inserts in many cases, reducing component count and assembly costs. The Phillips pan head provides a low-profile, finished appearance while the fully threaded shank ensures consistent clamping force across the entire length, preventing loosening in thermoplastic and thermoset materials commonly used in electronics enclosures, automotive trim, and consumer products.

Specification Summary & Compliance

This tapping screw features a thread diameter of 0.112" with 24 TPI in a right-hand direction, fully threaded from head to tip. It conforms to standard inch measurements with a pan head diameter of 0.193" and is designed for use with a No. 44 drill bit (0.086" diameter). The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global supply chains.