S-92525A128 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 stainless steel construction ensures long-term durability in harsh environments, reducing replacement costs and maintenance downtime.
• Thread forming Type B design creates strong, permanent threads in sheet metal without pre-tapping, improving assembly speed and joint reliability.
• Phillips No. 1 drive pan head provides secure tool engagement and a low-profile finish that resists snagging in tight spaces.
• Fully threaded 1-1/2" length with blunt tip offers maximum grip length and easier starting in pre-drilled holes for consistent performance.
• Precise No. 4-24 thread pitch (24 TPI) delivers excellent pull-out resistance and vibration resistance in sheet metal applications.
• RoHS 3 compliance meets international environmental standards, ensuring safe use in regulated industries and global markets.
• Optimized for No. 44 drill bit (0.086") ensures proper hole sizing for secure thread formation and reduced installation effort.

Professional Applications & Engineering Value

These 18-8 stainless steel tapping screws solve critical challenges in sheet metal assembly where corrosion resistance and thread reliability are paramount. The thread forming Type B design eliminates the need for separate tapping operations by cold-forming mating threads directly into the material, creating superior resistance to vibration loosening compared to cut threads. The combination of fully threaded shanks and blunt tips ensures maximum engagement depth while preventing material push-out in thin gauge metals. The Phillips pan head configuration with No. 1 drive size provides reliable torque transmission without the cam-out issues common in smaller fasteners, making these screws ideal for high-volume production environments requiring consistent performance in HVAC systems, electronic enclosures, and automotive components.

Specification Summary & Compliance

This No. 4-24 x 1-1/2" tapping screw features a 0.112" thread diameter with 24 threads per inch and right-hand threading. Manufactured to standard inch dimensions with Class 2A thread tolerances for consistent fit. The product is fully compliant with RoHS 3 (2015/863/EU) regulations, containing no restricted hazardous substances. Designed for use with No. 44 drill bits (0.086" diameter) as specified for proper thread forming applications in sheet metal substrates.