- Thread Size - Fractional: 1/4 in
- Finish/Coating: Bright
- Number of Flutes: 3
- Chamfer: Bottoming
- Material Application: K: Cast Iron, N: Non-ferrous (Aluminum), P: Steel, M: Stainless Steel
- Overall Length: 2.5000 in
- Part Number: C54459
- Series/List: 1003
- Shank Diameter - Decimal: 0.2550 in
- Shank Diameter - Metric: 6.480 mm
- Square Length: 0.3125 in
- Tapping Depth: 2XD
- Thread Length: 0.6300 in
- Flute Type: Straight
1/4-20 H3 3FL NC BOT TAP