(TB274) HSS-E (M35) UNF Gun Point for Stainless Steel

Thick-web UNF gun point taps for through holes

(TB274) HSS-E (M35) UNF Gun Point for Stainless Steel
$39.60 INC GST $36.00 EX GST
SKU
TB274342
Work materials
PMS

Key features

  • HSS-E UNF gun point machine taps for through holes
  • Thick web supports higher cutting speeds in suitable applications
  • Recommended for stainless steel threading
Tool material HSS-E
Surface treatment Steam Homo
Size
TPI
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Through-hole threading

Gun point geometry is suited to UNF threading in through holes.

Stainless steel focus

Recommended material guidance includes stainless steel applications.

Broad UNF selection

Available sizes span #10-32 UNF to 3/4-16 UNF.

SKUSizeTPIThread length (mm)Overall length (mm)Neck length (mm)Shank dia. (mm)Square size (mm)Square length (mm)FlutesTapping drill dia. (mm)CAD filesStock Price Qty Add
TB274342#1032UNF15.070.025.06.04.98.034.1STEPDXF In stock $36.00
TB2744221/428UNF17.080.030.07.05.58.035.5STEPDXF Low stock $34.30
TB2744625/1624UNF17.090.035.08.06.29.036.9STEPDXF In stock $38.20
TB2745023/824UNF18.0100.039.09.07.010.038.5STEPDXF In stock $45.10
TB2745427/1620UNF22.0100.040.08.06.29.039.9STEPDXF In stock $52.20
TB2745821/220UNF22.0100.040.09.07.010.0311.5STEPDXF Low stock $57.60
TB2746229/1618.022.0100.040.012.09.012.0312.9STEPDXF Low stock $66.10
TB2746625/818UNF22.0100.040.012.09.012.0314.5STEPDXF In stock $77.70
TB2747223/416UNF25.0110.044.014.011.014.0417.5STEPDXF Low stock $106.90
TB2747627/814.026.0125.050.018.014.517.0420.5STEPDXF Low stock $118.10
TB2748021"12.028.0140.054.018.014.517.0423.2STEPDXF Low stock $151.90

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Product Description

YG-1 TB274 HSS-E UNF gun point machine taps feature a thick web for through holes. They produce unified fine threads and are recommended for stainless steel applications. The thick web supports higher cutting speeds than other taps in suitable through-hole work. This series uses a VAP finish and combines DIN 371 and DIN 374 forms. Sizes in this range run from #10-32 UNF to 3/4-16 UNF. Three flutes apply through 5/8-18 UNF, while the 3/4-16 UNF size has four. Select these machine taps for through-hole UNF threading operations. Listed tap sizes use tapping drill diameters from 4.1 mm to 17.5 mm.

  • HSS-E UNF gun point machine taps for through holes
  • Thick web supports higher cutting speeds in suitable applications
  • Recommended for stainless steel threading
  • VAP finish across the TB274 series
  • DIN 371 forms from #10 through 3/8 UNF
  • DIN 374 forms from 7/16 through 3/4 UNF
Product Data
Hole Type Through
Surface Treatment Steam Homo
Thread Angle 60°
Thread Class 2B
Thread Form B
Thread Shape UNF
Tool Material HSS-E
Tool Standard 371/374
EDP No. Size TPI Thread Length Overall Length Neck Length Shank Diameter Square Size Square Length No. of Flute TB274182 #4 48 11 56 18 3.5 2.7 6 3 TB274222 #5 44 11 56 18 3.5 2.7 6 3 TB274262 #6 40 12 56 20 4 3 6 3 TB274302 #8 36 13 63 21 4.5 3.4 6 3 TB274342 #10 32 15 70 25 6 4.9 8 3 TB274382 #12 28 16 80 30 6 4.9 8 3 TB274422 1/4 28 17 80 30 7 5.5 8 3 TB274462 5/16 24 17 90 35 8 6.2 9 3 TB274502 3/8 24 18 100 39 9 7 10 3 TB274542 7/16 20 22 100 40 8 6.2 9 3 TB274582 1/2 20 22 100 40 9 7 10 3 TB274622 9/16 18 22 100 40 12 9 12 3 TB274662 5/8 18 22 100 40 11 9 12 3 TB274722 3/4 16 25 110 44 14 11 14 4 TB274762 7/8 14 26 125 50 18 14.5 17 4 TB274802 1" 12 28 140 54 18 14.5 17 4 TB274842 1-1/8 12 30 150 60 22 18 21 4

Work materials

VDI 3323 recommendations for this tool.

ExcellentGood

Steel

5 grades
Non-alloy steel
ExcellentVDI 1–2
GoodVDI 3–4
Low-alloy steel
GoodVDI 6

Superalloys & titanium

2 grades
Heat-resistant superalloys
GoodVDI 31
Titanium alloys
GoodVDI 36

Stainless steel

3 grades
Stainless steel
ExcellentVDI 12–14
VDI grade reference10 grades

Individual grade ratings and nominal hardness references. Base grades and decimal subgrades are listed separately.

Recommended VDI grades and nominal hardness references
VDIWork materialRecommendationHB ref.HRC ref.
1PNon-alloy steelExcellent125-
2PNon-alloy steelExcellent19013
3PNon-alloy steelGood25025
4PNon-alloy steelGood27028
6PLow-alloy steelGood18010
12MStainless steelExcellent20015
13MStainless steelExcellent24023
14MStainless steelExcellent18010
31SHeat-resistant superalloysGood20015
36STitanium alloysGood--

HB and HRC values are nominal catalogue references. Grade subdivisions can vary between catalogues.

Recommendations apply to the listed VDI grades. Unlisted grades have no stated recommendation.

EDP No. Size TPI Thread Length Overall Length Neck Length Shank Diameter Square Size Square Length No. of Flute TB274182 #4 48 11 56 18 3.5 2.7 6 3 TB274222 #5 44 11 56 18 3.5 2.7 6 3 TB274262 #6 40 12 56 20 4 3 6 3 TB274302 #8 36 13 63 21 4.5 3.4 6 3 TB274342 #10 32 15 70 25 6 4.9 8 3 TB274382 #12 28 16 80 30 6 4.9 8 3 TB274422 1/4 28 17 80 30 7 5.5 8 3 TB274462 5/16 24 17 90 35 8 6.2 9 3 TB274502 3/8 24 18 100 39 9 7 10 3 TB274542 7/16 20 22 100 40 8 6.2 9 3 TB274582 1/2 20 22 100 40 9 7 10 3 TB274622 9/16 18 22 100 40 12 9 12 3 TB274662 5/8 18 22 100 40 11 9 12 3 TB274722 3/4 16 25 110 44 14 11 14 4 TB274762 7/8 14 26 125 50 18 14.5 17 4 TB274802 1" 12 28 140 54 18 14.5 17 4 TB274842 1-1/8 12 30 150 60 22 18 21 4

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