STI Bottoming Taps
HIGH SPEED STEEL - GROUND THREAD
MADE IN THE USA BY REIFF & NESTOR
  • H-3 Thread Limit- H-1  -  H-2  -  H-4 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
6-32
3
RFN-54233
$ 7.62
$ 6.93
8-32
3
RFN-54433
$ 7.62
$ 6.93
10-24
3
RFN-54533
$ 7.93
$ 7.22
10-32
3
RFN-54633
$ 7.93
$ 7.22
12-24
3
RFN-54733
$ 8.38
$ 7.63
1/4-20
3
RFN-54833
$ 8.38
$ 7.63
1/4-28
3
RFN-54933
$ 8.38
$ 7.63
5/16-18
4
RFN-55033
$ 9.11
$ 8.29
5/16-24
4
RFN-55133
$ 9.11
$ 8.29
3/8-16
4
RFN-55233
$ 11.72
$ 10.67
3/8-24
4
RFN-55333
$ 11.72
$ 10.67
7/16-14
4
RFN-55433
$ 13.62
$ 12.39
7/16-20
4
RFN-55533
$ 13.62
$ 12.39
1/2-13
4
RFN-55633
$ 17.50
$ 15.93
1/2-20
4
RFN-55733
$ 17.50
$ 15.93
The Taps below start qty discounts at three pieces.
Tap Size Flutes Part Number Price Qty 1-2 Price Qty 3+ Order Quantity
5/8-11
4
RFN-55753
$ 40.31
$ 36.68
5/8-18
4
RFN-55763
$ 40.31
$ 36.68
3/4-10
4
RFN-55773
$ 56.42
$ 51.34
3/4-16
4
RFN-55783
$ 56.42
$ 51.34

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