• 5318 Victory Drive
    Indianapolis, IN 46203
  • (800) 622-4824
  • www.haggard-stocking.com

5/8-18 Tap, Modified Bottom, UNF thread, H9/H10, 6 flutes, HSS-E-PM, TiCN Coated, Form Tap

  • Item Code: 4378-15.875
  • Brand: Guhring
  • Unit Size: 1

Description

Not all threads are made by cutting. In large production runs or where great strength is required, the threads may be rolled (male) or formed (female).

In the case of the tap there are no cutting edges but instead the tap is lobed. The tap is forced into the hole and the material is deformed by the lobes into the required thread form. Formed threads have the advantage of increased strength (the material flows into shape via cold forming) along with reduced manufacturing time.

Tech Specs

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Overall Length (decimal) 3.9370
Shank Dia (decimal) 0.4800
Material HSS-E-PM
Square Size (decimal) 0.36
Number of flutes 6
Brand Guhring
Series 4378
threadtype UNF
Coating TiCN
Shank Diameter (mm) 12.192
chamfer (decimal) Modified Bottom
Diameter 5/8-18
H Limit H9/H10
Overall Length 3.937
Cutting Direction FORM