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

5/16-24 Tap, Modified Bottom, UNF thread, H7/H8, 5 flutes, HSS-E-PM, TiCN Coated, Form Tap

  • Item Code: 4378-7.938
  • 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

Back To Top
Series 4378
Reach (decimal) 1.3770
Shank Dia (decimal) 0.3180
Cutting Direction FORM
Diameter 5/16-24
Material HSS-E-PM
threadtype UNF
Brand Guhring
Overall Length 3.543
Shank Diameter (mm) 8.0772
chamfer (decimal) Modified Bottom
Coating TiCN
Number of flutes 5
H Limit H7/H8
Overall Length (decimal) 3.5430
Square Size (decimal) 0.2382