S-90065A106 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 stainless steel construction ensures long-term durability in demanding industrial environments, reducing replacement costs.
• Thread forming tapping design creates strong, permanent threads in sheet metal without chips, improving joint integrity.
• Undercut flat head profile allows for flush mounting and reduced risk of head protrusion, enhancing surface finish.
• Fully threaded shank with pointed tip provides maximum grip length and easier starting in pre-drilled holes.
• Phillips drive (No. 1 size) offers secure tool engagement and efficient installation with common drivers.
• Compatible with standard No. 44 drill bit and 82° countersink simplifies hole preparation and ensures proper seating.
• RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

These No. 4-24 thread forming tapping screws are precision-engineered for sheet metal applications where vibration resistance and material integrity are critical. The 18-8 stainless steel provides excellent corrosion resistance, ideal for outdoor equipment, electrical enclosures, and HVAC systems. The undercut flat head design minimizes stress concentration and sits flush with surfaces, preventing snagging while the thread forming method cold-forms threads without cutting, eliminating metal chips that could cause electrical shorts or mechanical interference. This combination ensures reliable fastening in thin materials up to 0.025" thickness, reducing assembly time and improving product lifespan in industrial fastening scenarios.

Specification Summary & Compliance

This No. 4-24 x 1/4" tapping screw features a right-hand thread with approximately 24 threads per inch and complies with standard inch measurements. The flat head is designed with an 82° countersink angle for proper seating. Manufacturing adheres to industry standards for thread forming Type A screws, ensuring consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety requirements for industrial use.