Thread Forming Tap, Thread Size 5/16 In.-18, UNC, Overall Length 2 23/32 in, VC-10, TiCN, Right Hand, Thread Length 5/8 in, 75 Percent Thread Drill Size 7.20 mm, Thread Limit H9

UN coarse (UNC) taps have fewer threads per inch than UN fine (UNF) taps. Compared to UNF taps, UNC taps perform better in threading applications on brittle materials and are less likely to cross thread. Coarse threads can also withstand more physical abuse than fine threads. The TiCN coating on these taps protects them from wear and is harder and more wear-resistant than a TiN coating. This listing is for each. Technical Specification Item Thread Forming Tap Thread Size 5/16-18 Thread Standard UNC Tap Material VC-10 Tap Finish TiCN Thread Length 5/8 in Overall Length 2 23/32 in 75% Thread Drill Size 7.20 mm Thread Limit H9 Thread Direction Right Hand Primary Material Application Aluminum, Brass, Bronze, Copper, Stainless Steel, Steel 55% Thread Drill Size 7.40 mm 65% Thread Drill Size 7.30 mm Coolant Fed Non-Coolant Through Extended Neck No Material Grade - Machining 14050 Number of Flutes 0 Primary Material Application ISO Code M, N, P Secondary Material Application Hardened Steel, Stainless Steel Secondary Material Application ISO Code H, M Series 14050 Shank Dia. 5/16 in Shank Length 1 19/32 in Spiral Direction Neutral Square Size 0.2380 in Standards ANSI Tap Chamfer Bottom Tap Grouping Individual Tap Style Thread Forming Thread Limit / Class of Fit H9 Threads per Inch 18