S-90065A051 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping
• Precise 82° countersink angle ensures flush mounting and clean aesthetic finish
• High thread density (42 TPI) provides superior holding power in thin materials
• Phillips drive compatibility offers widespread tool accessibility and controlled installation
• Fully threaded pointed tip enables easy starting and smooth penetration
• Environmental compliance with RoHS 3 standards for sustainable manufacturing

Professional Applications & Engineering Value

This No. 1 x 1/4" Phillips flat head tapping screw delivers exceptional engineering value in sheet metal applications where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel construction provides excellent durability against environmental factors, while the thread forming (AB type) design eliminates the need for separate tapping operations, reducing assembly time and costs. The 42 TPI thread pattern ensures maximum engagement in thin materials up to 0.025" thickness, preventing stripping and maintaining secure fastening. The standard 82° countersink angle allows for flush installation in precision sheet metal work, making these thread forming screws ideal for HVAC systems, electronic enclosures, and automotive components where vibration resistance and clean appearance are critical.

Specification Summary & Compliance

Manufactured to precise inch system specifications with Class 2A thread tolerances for consistent performance. Features right-hand threading with fully threaded design and pointed tip for optimal penetration. Compatible with No. 52 drill bit (0.0635" diameter) for proper hole preparation. Compliant with RoHS 3 (2015/863/EU) environmental regulations, ensuring safe and sustainable manufacturing practices. The AB type tapping screw designation confirms adherence to industry-standard thread forming specifications for reliable performance in sheet metal fastening applications.