Union Butterfield® 1010468 1572 Straight Flute STI Tap, Imperial, 3/8-16 Thread, 4 Flutes, 3B/H3 Class of Fit, Bottoming Chamfer, Right Hand Cutting, UNC Thread

25821152 MFG #: 1010468
  • Brand: Union Butterfield®
  • Type: Straight Flute
  • Series: 1572
  • Measurement System: Imperial
  • Size: 3/8-16
  • Thread Standard: UNC
  • Thread Length: 1-21/32
  • Overall Length: 3-3/8
  • Number of Flutes: 4
  • Chamfer Type: Bottoming
  • Cutting Direction: Right Hand
  • Class of Fit: 3B/H3
  • Shank Diameter: 0.36699999999999999
  • Tap Drill Size: 5/16
  • Square Size: 0.27500000000000002
  • Material: HSS
  • Finish: Bright
Union Butterfield® STI Tap, Straight Flute, Series: 1572, Measurement System: Imperial, 3/8-16 Thread, UNC Thread Standard, 1-21/32 in Thread Length, 3-3/8 in Overall Length, 4 Flutes, Bottoming Chamfer, Right Hand Cutting Direction, Class of Fit: 3B/H3, 0.367 in Shank Diameter, 5/16 in Tap Drill, 0.275 in Square, HSS, Bright
  • Designed for use in aluminum, magnesium, and other nonferrous materials where taps of this
  • Designed for use in
  • Taps suitable for other materials can be furnished on request
  • Taps suitable for ot
  • STI taps are dimensionally oversize and utilize a larger tap drill size so that the thread
  • STI taps are dimensi
  • For a particular size and pitch the lower H-Limit number is suggested for class 2B and 3B
  • For a particular siz
  • Through or blind hole
  • Through or blind hol
Designed for use in aluminum, magnesium, and other nonferrous materials where taps of this type are most commonly used
• 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
• 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
• 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
• 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
• Through or blind hole