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HSS Tap UNF Bott.-1/4x28
HSS Tap UNF Bottoming – 1/4 x 28
This high-speed steel (HSS) bottoming tap is designed for producing accurate internal threads to the Unified National Fine (UNF) standard, sized 1/4" x 28 TPI (threads per inch). With a very short lead-in taper, the bottoming style tap is ideal for threading blind holes to full depth, providing maximum thread engagement in fine-thread applications.
Key Features:
Size: 1/4" UNF (28 TPI)
Type: Bottoming tap – for threading close to the bottom of blind holes
Material: High-Speed Steel (HSS) for excellent durability, hardness, and wear resistance
Thread Standard: Unified National Fine (UNF) – commonly used in automotive, aerospace, and precision fastening applications requiring finer threads
Applications: Suitable for repair, maintenance, engineering, fabrication, and workshop use
Strong, reliable, and precise, this bottoming tap delivers clean, full-depth threads and long service life in a wide range of materials.