STI Bottoming Taps
HIGH SPEED STEEL - GROUND THREAD
MADE IN THE USA BY REIFF & NESTOR
  • H-4 Thread Limit- H-1  -  H-2  -  H-3 also available
  • Use to produce threads for helical coil wire screw thread inserts
  • STI taps are oversized so the thread produced accepts a helical coil wire screw thread insert of the same nominal size and pitch.
  • Taps are marked with "STI" and the nominal size and pitch of the bolt to be used.
  • Click here to chat with sales

STI Straight Flute Taps
Tap Size Flutes Part Number Price Qty 1-11 Price Qty 12+ Order Quantity
5/16-18
4
RFN-55043
$ 10.02
$ 9.12
3/8-16
4
RFN-55243
$ 12.89
$ 11.74
7/16-14
4
RFN-55443
$ 14.98
$ 13.63
7/16-20
4
RFN-55543
$ 14.98
$ 13.63
1/2-13
4
RFN-55643
$ 19.25
$ 17.52
1/2-20
4
RFN-55743
$ 19.25
$ 17.52
The Taps below start qty discounts at three pieces.
Tap Size Flutes Part Number Price Qty 1-2 Price Qty 3+ Order Quantity
7/8-9
4
RFN-55793
$ 95.12
$ 86.56
7/8-14
4
RFN-55803
$ 95.12
$ 86.56
1-8
4
RFN-55813
$121.89
$110.92
1-14
4
RFN-55823
$121.89
$110.92

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