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

1/4-28 Tap, Spiral Point Plug, UNF thread, H7, 3 flutes, HSS-E-PM, TiN Coated

  • Item Code: 3983-6.350
  • Brand: Guhring
  • Unit Size: 1

Description

Oversized taps are taps that are typically +0.003''/+0.005'' larger than the standard pitch diameter. An H7 thread limit tap is +0.003'' oversize from the basic pitch diameter while the H11 tap is +0.005'' oversize. Oversize taps are typically used for threading holes that will be subsequently plated or heat treated after tapping. Guhring offers TiN coated plug and bottoming style oversize taps as stocked standards.

Tech Specs

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Diameter (mm) 6.35
Overall Length (decimal) 2.5000
Series 3983
Material HSS-E-PM
chamfer (decimal) Spiral Point Plug
Reach (decimal) 1.1810
Diameter 1/4-28
H Limit H7
Shank Diameter (mm) 6.477
threadtype UNF
Coating TiN
Number of flutes 3
Overall Length (mm) 63.5
Brand Guhring
Square Size (decimal) 0.1909