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Grainger Choice Product
Spiral Point Tap, Thread Size 1/4"-20, UNC, Overall Length 2 1/2 in, High Speed Steel
- Item # 5TWD1
- Mfr. Model # 5TWD1
- UNSPSC # 23153305
- Catalog Page # 2272 2272
Country of Origin
China.
Country of Origin is subject to change.
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 bright finish on these taps provides a smooth, polished surface.
Technical Specs
- Item Spiral Point Tap
- Thread Size 1/4"-20
- Thread Standard UNC
- Tap Material High Speed Steel
- Tap Finish Bright (Uncoated)
- Thread Length 1 in
- Overall Length 2 1/2 in
- Thread Limit H3
- Class of Fit 3B
- Thread Direction Right Hand
- Number of Flutes 2
- Primary Material Application All Materials
- Coolant Fed Non-Coolant Through
- Drill Bit Size 8#
- Material Grade - Machining M2
- Measurement System Fractional Inch
- Series 311-90685
- Shank Dia. 1/4 in
- Shank Type - Machining Straight
- Square Size 0.1910 in
- Standards ASME
- Tap Chamfer Plug
- Tap Grouping Individual
- Tap Thread Size 1/4"-20
- Threads per Inch 20
- Thread Limit / Class of Fit H3 / 3B
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 bright finish on these taps provides a smooth, polished surface.