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4AKK0 13270 UNSPSC # 27112806

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Spiral Point Tap, Thread Size 1/4"-20, UNC, UNJC, Overall Length 2 1/2 in, HSS-E

  • Item # 4AKK0
  • Mfr. Model # 13270
  • UNSPSC # 27112806
  • Catalog Page # 2273 2273
Country of Origin USA. Country of Origin is subject to change.

These taps have a unified thread standard and are designed for tapping steel. UN coarse (UNC) taps have fewer threads per inch than UN fine (UNF) taps. Compared to UNF taps, UNC taps perform better in threading applications on brittle materials and are less likely to cross thread. Coarse threads can also withstand more physical abuse than fine threads. UNF taps have more threads per inch than UNC taps. Compared to UNC taps, UNF taps perform better in threading applications on thin-walled workpieces and hard materials. Fine threads provide more tensile strength and shear strength than coarse threads. The bright finish on these taps provides a smooth, polished surface.

Technical Specs

  • Item Spiral Point Tap
  • Thread Size 1/4"-20
  • Thread Standard UNC, UNJC
  • Tap Material HSS-E
  • Tap Finish Bright (Uncoated)
  • Thread Length 1 in
  • Overall Length 2 1/2 in
  • 75% Thread Drill Size #7
  • Thread Limit H3
  • Class of Fit H3
  • Thread Direction Right Hand
  • Number of Flutes 2
  • Primary Material Application Steel
  • 55% Thread Drill Size #3
  • 65% Thread Drill Size #5
  • Coolant Fed Non-Coolant Through
  • Extended Neck No
  • Measurement System Fractional Inch
  • Primary Material Application ISO Code P
  • Secondary Material Application Aluminum, Brass, Bronze, Cast Iron, Copper, Stainless Steel, Steel
  • Secondary Material Application ISO Code K, M, N
  • Series 5301/2301
  • Shank Dia. 1/8 in
  • Shank Length 1 1/2 in
  • Shank Type - Machining Straight
  • Spiral Direction Neutral
  • Square Size 0.191 in
  • Standards DIN 371
  • Tap Chamfer Plug
  • Tap Grouping Individual
  • Tap Thread Size 1/4"-20
  • Threads per Inch 20
  • Thread Limit / Class of Fit H3 / H3

These taps have a unified thread standard and are designed for tapping steel. UN coarse (UNC) taps have fewer threads per inch than UN fine (UNF) taps. Compared to UNF taps, UNC taps perform better in threading applications on brittle materials and are less likely to cross thread. Coarse threads can also withstand more physical abuse than fine threads. UNF taps have more threads per inch than UNC taps. Compared to UNC taps, UNF taps perform better in threading applications on thin-walled workpieces and hard materials. Fine threads provide more tensile strength and shear strength than coarse threads. The bright finish on these taps provides a smooth, polished surface.

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