Sign In / RegisterContact us

Plug lead hand tap UNC 5/16", bright finish HSS according ISO 529 for medium strength, medium carbon and alloy steel
Material ID: 8522481

Straight flute ECON hand tap with 4-6xP plug lead, for Unified National Coarse thread UNC 5/16" with 18 TPI and 2B class of fit, dimensions according to ISO 529 standard with 8 mm shank and 6.3 mm square drive, HSS with bright finish for 1.5XD through or blind hole threading as a first choice for medium strength, medium carbon and alloy steel

info If you want to see the prices or stock information, please sign in or request access.
Sign in to add to wish list
Product Feature

Bright (uncoated)

Thread Form, Unified Coarse

ISO 529 – Tap Standard

Internal Inch Thread Medium Class of Fit

Through or Blind Hole Application

1.5×D Usable Tool Depth to Diameter Ratio

High Speed Steel Tool Material

Plug Tap Chamfer (3.5 – 5 Pitch Lead)

Straight Flute Geometry

Right Hand Rotation / Cutting

Product Detail
Product nameE559UNC5/16NO2
Thread diameter size (TDZ)42491
Threads per inch (TPI)18
Overall length - millimeter (OAL)72 mm
Thread diameter - millimeter (TD)7.937 mm
Threading length - millimeter (THL)22 mm
Connection diameter - millimeter (DCON MS)8 mm
Clamping width - millimeter (WSC)6.3 mm
Clamping Length - millimeter (LSC)9 mm
Flute count (NOF)4
Premachined hole diameter - millimeter (PHD)6.6 mm
Usable Length - millimeter (LU)35 mm
Cutting Conditions