1/4-28 H6 Bottom Style Thread Forming Tap Tin Coated

SKU 415-7156

1/4-28 H6 Bottom Style Thread Forming Tap Tin Coated

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SKU 415-7156
Mfg SKU # 415-7156
tap category Thread Forming Taps
Brand Made in USA
Shank Diameter 0.255
thread size 1/4-28
thread standard UNF
chamfer style bottom
ground thread limit H6
Material HSS
finish coating Tin Coated
Overall Length 2-1/2
thread length 1
square size 0.191
Square Length 5/16
Full Details
  • Made in USAMade in USA

Product Spotlight

Application  Aluminum, Brass, Copper, Lead, Stainless Steel, Carbon Steel, Leaded Steel and Zinc
 Cutting Application
 Cold Foam Threading

  • Thread forming taps have not flutes or cutting edge so it cold form rather than cut the threads
  • Advantages include no chips to dispose of, stronger higher quality threads, increased tapping speeds, longer tap life and reduced tap breakage. Recommended for a wide variety of ductile materials
  • Bottom Style (2 threads tapered) for blind holes
  • "Lube Grooves" for lubrication and venting in blind holes
  • Tool life 3-4 times or more than cutting taps
  • Made from premium high speed steel with ground threads
  • Thread foam, right hand cut, square drive shank
  • Tin Coated finish
  • 100% Made in USA


UPS 2nd Day Air Service at UPS ground rate when your entire order only includes USA made cutting tools (end mills, drills, tap & dies, thread mills, burs, reamers).  Please look for this UPS logo on qualifying items.  Offer only applies to orders shipping within the 48 continental United States and is not valid on previous orders.  Order by 5pm EST and we will ship out the same day.