1578 1/4-28 H3 2FL SP PT PLUG STI TAP

UNB6006897 MFG #: 6006897
$56.30 / EA
  • Class of Fit: 2B/3B/H3
  • Material: HSS
  • Overall Length: 2-23/32in
  • Shank Diameter: 0.318in
  • Square Size: 0.238in
  • Tap Drill Size: #3
  • Thread Length: 1-1/8in
  • Thread Standard: UNF
  • Type: Spiral Point
  • Series: 1578
  • Thread Size: 1/4-28
  • Number of Flutes: 2
  • Surface Treatment: Bright
  • Chamfer: Plug
  • Hand Direction: Right Hand
  • System of Measurement: Imperial
QTY
  • Application
  • Item Features
  • Standards
Through Hole Applications
  • 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 hole
ANSI Specified|PROP65: This product contains chemicals known to the State of California to cause cancer. For more information: www.P65Warnings.ca.gov|CSA Approved