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Greenfield Threading385398

385398

3180 1/4-18 NPT 4F HS
Item #101655357
  • Inch
  • 1/4-18 NPT Thread Size & Type
  • Semi-Bottoming Chamfer Type
  • HSS Material
  • Bright Coating
  • 4 Flutes
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Greenfield Threading385398
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    Shipment Options
  • Inch
  • 1/4-18 NPT Thread Size & Type
  • Semi-Bottoming Chamfer Type
  • HSS Material
  • Bright Coating

applications

  • Medium hook for general-purpose

features

  • NPT threads require a sealer (Teflon tape or pipe compound)
  • NPTF threads produce a pressure tight joint without using a sealer
  • Ground thread for accuracy
Thread Type NPT
Shank Size - Metric 14.29 mm
Shank Square Length 0.4375 in
Thread Size & Type 1/4-18 NPT
Shank Square Width 0.421 in
Blank Construction USCTI Table 311
Thread Length 1.0625 in
Pitch Dia. N/A
Diameter - Decimal 0.25 in
Chamfer Type Semi-Bottoming
Thread Pitch N/A
Standard Projection 0.459 in
Shank End Feature Square
Thread Creation Thread Cutting
Thread Length - Metric 26.99 mm
Ground Threads Yes
Thread Size 1/4 in
Truncated Threads No
Thread Size - Decimal 0.25 in
Tap Size 1/4 in
Thread Size - Metric 6.35 mm
Material HSS
Diameter - Fraction 1/4 in
Tap Type Pipe
Diameter - Wire E
Direction of Cut Right Hand
No. of Flutes 4
Shank Square Length - Metric 11.11 mm
Spiral Point No
Threads per Inch 18
Shank Square Width - Metric 10.69 mm
Overall Length 2.4375 in
Interrupted Thread No
Thread Per Inch 18
Operation Type Thru-Hole
Weight 0.4 LB
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