Bright (uncoated)
UNC Machine Tap Spiral Flute 45°
Material ID: 5973684
Spiral flute tap with chamfer form C with a 2-3xP plug lead, for Unified National Coarse thread UNC 1/4" with 20 TPI and 2B class of fit, dimensions according to DIN 2184-1 standard with 7.0mm shank and 5.5mm square drive, powder metallurgical HSS-E with bright finish and 45° helix angle for 2.5xD blind hole threading in free machining and plain carbon steel and wrought or cast aluminium
Thread Form, Unified Coarse
DIN 2184-1 – Tap Standard
Internal Inch Thread Medium Class of Fit
Blind Hole Application
2.5×D Usable Tool Depth to Diameter Ratio
High Speed Cobalt Powder Metal Tool Material
Semi-Bottoming Tap Chamfer (2 – 3 Pitch Lead)
Spiral Flute Geometry
45° Helix Angle (Flute)
Right Hand Rotation / Cutting
| Product name | EX201/4 |
| Product number (SAP) | 86017694 |
| EAN number | 7320760150320 |
| Ordering code ANSI | EX201/4 |
| Thread diameter size (TDZ) | 1/4 |
| Thread diameter - millimeter (TD) | 6.35 mm |
| Threads per inch (TPI) | 20 |
| Overall length - millimeter (OAL) | 80 mm |
| Overall length - inch (OAL) | 3.1496 inch |
| Threading length - millimeter (THL) | 10 mm |
| Threading length - inch (THL) | 0.3937 inch |
| Flute count (NOF) | 3 |
| Connection diameter - millimeter (DCON MS) | 7 mm |
| Connection diameter - inch (DCON MS) | 0.2756 inch |
| Clamping width - millimeter (WSC) | 5.5 mm |
| Clamping width - inch (WSC) | 0.2165 inch |
| Clamping Length - millimeter (LSC) | 8 mm |
| Clamping Length - inch (LCS) | 0.315 inch |
| Premachined hole diameter - millimeter (PHD) | 5.1 mm |
| Premachined hole diameter - inch (PHD) | 0.2008 inch |
| Usable Length - inch (LU) | 1.1811 inch |
| Usable Length - millimeter (LU) | 30 mm |
| Gross weight - grams | 20 |
| ISO | EX201/4 |