S-90086A619 8-32 x 1 3/4" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Self-tapping design eliminates pre-tapping operations, reducing installation time and labor costs in aluminum, brass, cast iron, and sheet metal applications.
• Zinc-plated steel construction provides reliable corrosion resistance, extending fastener lifespan in demanding industrial environments.
• Coarse UNC threads ensure rapid installation and superior holding power in softer materials and sheet metal assemblies.
• 82° countersink angle with flat head creates a flush, professional finish that prevents snagging and improves aesthetic appearance.
• Phillips No. 2 drive system offers widespread tool compatibility and efficient torque transfer during installation.
• Fully threaded shank maximizes thread engagement along the entire length for enhanced pull-out resistance and vibration durability.
• Type F thread cutting design generates clean, precise threads that maintain integrity through repeated disassembly and reassembly cycles.

Professional Applications & Engineering Value

These 8-32 UNC thread cutting tapping screws solve critical assembly challenges in metalworking and manufacturing applications. The zinc-plated steel construction combined with the Type F thread cutting design enables direct installation into aluminum, brass, cast iron, and sheet metal without pre-tapped holes, significantly reducing production time and eliminating tap breakage risks. The coarse thread pitch provides exceptional pull-out resistance in softer materials, while the 82° countersink angle ensures flush mounting for safety and clean aesthetics. Engineered for industrial fastening applications, these screws maintain thread integrity through vibration and thermal cycling, making them ideal for construction, machinery assembly, and metal fabrication where reliability and efficiency are paramount.

Specification Summary & Compliance

These tapping screws feature 8-32 UNC coarse threads with standard thread tolerances and are manufactured to exact dimensional specifications including 1-3/4" length and 0.312" head diameter. The products fully comply with ASME B18.6.3 mechanical and dimensional requirements SAE J933, ensuring interchangeability and performance reliability. Environmental compliance is maintained through RoHS 3 (2015/863/EU) compliance, making them suitable for regulated industries and international markets. The Type F thread cutting design follows established industry standards for optimal performance in designated materials.