Threaded Insert Taps
Screw thread insert taps (STI taps) operate in the same manner as “standard” taps, but produce an oversized thread specifically for threaded inserts. During insert installation, the threads cut by an STI tap form the insert into the desired thread size. STI taps are ideal for tapping holes in softer metals that require a strong threaded insert. STI taps are manufactured from high speed steel (HSS) for superior durability. We offer STI taps in a wide range of inch, metric, and spark plug sizes to meet your unique requirements.
Available In:
- Inch sizes from #2 to 3-1/2
- Metric sizes from M2.2 to M64
- Manufactured from high speed steel (HSS)
- Straight flute
- 4-thread lead
-
Sku #: 35L7H1-21Z0V-C24Q
M24 x 3 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $286.04 Regular Price $430.00 -
Sku #: 35L7H1-21Z0V-C24N
M24 x 2 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $286.04 Regular Price $430.00 -
Sku #: 35L7H1-21Z0V-C22J
M22 x 1.5 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $201.22 Regular Price $302.50 -
Sku #: 35L7H1-21Z0V-C20P
M20 x 2.5 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $172.95 Regular Price $260.00 -
Sku #: 35L7H1-21Z0V-C20J
M20 x 1.5 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $172.95 Regular Price $260.00 -
Sku #: 35L7H1-21Z0V-C18P
M18 x 2.5 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $165.02 Regular Price $235.00 -
Sku #: 35L7H1-21Z0V-C18J
M18 x 1.5 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $165.02 Regular Price $235.00 -
Sku #: 35L7H1-21Z0V-C16N
M16 x 2 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $161.51 Regular Price $230.00 -
Sku #: 35L7H1-21Z0V-C16J
M16 x 1.5 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $161.51 Regular Price $230.00 -
Sku #: 35L7H1-21Z0V-C14N
M14 x 2 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $121.13 Regular Price $172.50 -
Sku #: 35L7H1-21Z0V-C14J
M14 x 1.5 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $121.13 Regular Price $172.50 -
Sku #: 35L7H1-21Z0V-C12M
M12 x 1.75 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $79.00 Regular Price $112.50 -
Sku #: 35L7H1-21Z0V-C12H
M12 x 1.25 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $79.00 Regular Price $112.50 -
Sku #: 35L7H1-21Z0V-C10J
M10 x 1.5 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $66.71 Regular Price $95.00 -
Sku #: 35L7H1-21Z0V-C10H
M10 x 1.25 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $66.71 Regular Price $95.00 -
Sku #: 35L7H1-21Z0V-B80H
M8 x 1.25 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $64.95 Regular Price $92.50 -
Sku #: 35L7H1-21Z0V-B80F
M8 x 1 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $64.95 Regular Price $92.50 -
Sku #: 35L7H1-21Z0V-B60F
M6 x 1 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $56.18 Regular Price $80.00 -
Sku #: 35L7H1-21Z0D-100S
1-14 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $279.38 Regular Price $420.00 -
Sku #: 35L7H1-21Z0B-100
1-8 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $279.38 Regular Price $420.00 -
Sku #: 35L7H1-21Z0C-087
7/8-14 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $212.03 Regular Price $318.75 -
Sku #: 35L7H1-21Z0B-087
7/8-9 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $212.03 Regular Price $318.75 -
Sku #: 35L7H1-21Z0C-075
3/4-16 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $157.64 Regular Price $224.50 -
Sku #: 35L7H1-21Z0B-075
3/4-10 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $157.64 Regular Price $224.50 -
Sku #: 35L7H1-21Z0C-062
5/8-18 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $107.09 Regular Price $152.50 -
Sku #: 35L7H1-21Z0B-062
5/8-11 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $107.09 Regular Price $152.50 -
Sku #: 35L7H1-21Z0C-056
9/16-18 Left-Hand STI Plug Tap - High Speed Steel -
Sku #: 35L7H1-21Z0C-050
1/2-20 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $93.04 Regular Price $132.50 -
Sku #: 35L7H1-21Z0B-050
1/2-13 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $93.04 Regular Price $132.50 -
Sku #: 35L7H1-21Z0C-043
7/16-20 Left-Hand STI Plug Tap - High Speed SteelSpecial Price $91.29 Regular Price $130.01
