Bright (uncoated)






HSS Straight Flute Hand Tap, BSW, ISO Standard
Material ID: 5977260
Set of straight flute hand taps NO6 for British Standard Whitworth thread BSW 1/4" with 20 TPI and Medium class of fit, consisting of 1 tap with a 6-8xP taper lead, 1 tap with a 4-6xP second lead and 1 tap with a 2-3xP plug lead, dimensions according to ISO 529 standard with 6.3mm shank and 5.0mm square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel and copper or copper alloys


Thread Form, British Standard Whitworth

ISO 529 – Tap Standard

Medium Inch Thread Class of Fit

Through or Blind Hole Application

1.5×D Usable Tool Depth to Diameter Ratio

High Speed Steel Tool Material

Straight Flute Geometry

Right Hand Rotation / Cutting
Product name | E5311/4NO6 |
Product number (SAP) | 86016905 |
EAN number | 7320760155271 |
Ordering code ANSI | E5311/4NO6 |
Thread diameter size (TDZ) | 1/4 |
Thread diameter - millimeter (TD) | 6.35 mm |
Threads per inch (TPI) | 20 |
Overall length - millimeter (OAL) | 66 mm |
Overall length - inch (OAL) | 2.5984 inch |
Threading length - millimeter (THL) | 13 mm |
Threading length - inch (THL) | 0.5118 inch |
Connection diameter - inch (DCON MS) | 0.248 inch |
Connection diameter - millimeter (DCON MS) | 6.3 mm |
Flute count (NOF) | 3 |
Usable Length - inch (LU) | 1.0236 inch |
Usable Length - millimeter (LU) | 26 mm |
Clamping width - inch (WSC) | 0.1969 inch |
Clamping width - millimeter (WSC) | 5 mm |
Premachined hole diameter - inch (PHD) | 0.2008 inch |
Premachined hole diameter - millimeter (PHD) | 5.1 mm |
Gross weight - grams | 53.2 |
ISO | E5311/4NO6 |