Please note this is a general representation of what we have available in-store, some of these items may need to be special ordered.

Machine Screw Tap, National Course Thread, #4 x 40

Irwin

SKU: 6010946

#4 x 40, national course thread, machine screw tap, carbon steel, ideal for routine maintenance, repair work & for rethreading where high accuracy & tolerance thread is not critical, straight flutes are ground to provide rapid chip removal for efficient threading, designed for hand threading work in a variety of materials taps produce a class 2b thread, use drill bit #43 or 5/64".