Union Butterfield STI 1010458 1572 Straight Flute Tap, Imperial, 5/16-18, 4 Flutes, 3B/H3 Class of Fit, Plug Chamfer, Right Hand Cutting, UNC Thread

  • Item Code: UNIO 6006931 1010458 1572
  • Brand: Union Butterfield
  • Mfg Part No: 1010458
  • Manufacturer: Dormer Pramet
  • Unit Size: 1

Description

Features Tech Specs Applications

Features

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    • Designed for use in aluminum, magnesium, and other nonferrous materials where taps of this type are most commonly used
    • Taps suitable for other materials can be furnished on request
    • STI taps are dimensionally oversize and utilize a larger tap drill size so that the thread they produce will accept a helical coil wire screw thread insert of the same nominal size and pitch
    • For a particular size and pitch the lower H-Limit number is suggested for class 2B and 3B threads, while the higher H-Limit is suggested for class 2B
    • Through or blind hole

Tech Specs

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Chamfer Type Plug
Class of Fit 3B/H3
Finish Bright
Material HSS
Measurement System Imperial
Number of Flutes 4
Overall Length 2-15/16
Series 1572
Shank Diameter 0.381
Size 5/16-18
Square Size 0.286
Tap Drill Size F
Thread Length 1-1/4
Thread Standard UNC
Type Straight Flute
UPC 69846402120

Applications

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Through or Blind Hole Applications

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