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HSS Tap UNF Inter-5/8x18
HSS Tap UNF Intermediate – 5/8 x 18
This high-speed steel (HSS) intermediate tap, also known as a second tap, is designed for producing accurate internal threads to the Unified National Fine (UNF) standard, sized 5/8" x 18 TPI (threads per inch). With a medium lead-in taper, it provides smooth cutting performance and accuracy, making it suitable for both through holes and blind holes. It is generally used after a taper tap and before a bottoming tap in a complete set.
Key Features:
Size: 5/8" UNF (18 TPI)
Type: Intermediate (Second) tap – versatile for general-purpose threading
Material: High-Speed Steel (HSS) for strength, wear resistance, and long service life
Thread Standard: Unified National Fine (UNF) – widely used in automotive, aerospace, and precision engineering applications requiring finer thread pitch
Applications: Ideal for repair, fabrication, maintenance, automotive, and workshop use
Strong, reliable, and precise, this intermediate tap ensures consistent thread quality and dependable performance across a wide variety of materials.