Screw Thread Insert Taps
Stripped threads kill uptime. These STI taps cut the oversized insert thread that Perma-Thread coils lock into so you get a permanent standard screw thread back in aluminum, cast or steel. Choose USS-SAE or metric to match the fastener. Built for NAS 1222 work including MS 21208 and MS 21209 applications.
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USS & SAE Perma-Thread Insert STI Taps
Perma-Thread STI taps are stainless steel taps designed for installing helically coiled Perma-Thread inserts. Precision diamond‑shaped coil inserts install with a notched driving tang and expand to anchor in tapped holes. Meets NAS 1222 specifications and suitable for military and aerospace use.
| Item # | Thread Size | Number of Flutes | Measurement Type | Thread Type | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
822500
|
#8-32
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822501
|
#10-24
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822502
|
#10-32
|
4
|
SAE
|
Fine
|
Stainless Steel
|
1
|
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|
|
822504
|
#12-24
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822505
|
1/4"-20
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822506
|
1/4"-28
|
4
|
SAE
|
Fine
|
Stainless Steel
|
1
|
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|
|
822507
|
5/16"-18
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822508
|
5/16"-24
|
4
|
SAE
|
Fine
|
Stainless Steel
|
1
|
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|
|
822509
|
3/8"-16
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822510
|
3/8"-24
|
4
|
SAE
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822511
|
7/16"-14
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822512
|
7/16"-20
|
4
|
SAE
|
Fine
|
Stainless Steel
|
1
|
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|
|
822513
|
1/2"-13
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822514
|
1/2"-20
|
4
|
SAE
|
Fine
|
Stainless Steel
|
1
|
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|
|
822515
|
9/16"-12
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822516
|
9/16"-18
|
4
|
SAE
|
Fine
|
Stainless Steel
|
1
|
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|
|
822517
|
5/8"-11
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822518
|
5/8"-18
|
4
|
SAE
|
Fine
|
Stainless Steel
|
1
|
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|
|
822519
|
3/4"-10
|
4
|
USS
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822520
|
3/4"-16
|
4
|
SAE
|
Fine
|
Stainless Steel
|
1
|
Log in to view price |
Metric Perma-Thread Insert STI Taps
Metric Perma-Thread insert STI taps are helically coiled stainless steel inserts made from 18-8 wire that form permanent screw threads. The notched driving tang eases installation and removal and the coil expands to anchor in tapped holes. Meets NAS 1222 specifications.
| Item # | Thread Size | Number of Flutes | Measurement Type | Thread Type | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
822535
|
M5 x 0.8
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822536
|
M6 x 1.0
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822537
|
M7 x 1.0
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822539
|
M8 x 1.0
|
4
|
Metric
|
Fine
|
Stainless Steel
|
1
|
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|
|
822538
|
M8 x 1.25
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822541
|
M10 x 1.25
|
4
|
Metric
|
Fine
|
Stainless Steel
|
1
|
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|
|
822540
|
M10 x 1.5
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
Log in to view price | |
|
|
822543
|
M12 x 1.5
|
4
|
Metric
|
Fine
|
Stainless Steel
|
1
|
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|
|
822542
|
M12 x 1.75
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
Log in to view price | |
|
|
822545
|
M14 x 1.5
|
4
|
Metric
|
Fine
|
Stainless Steel
|
1
|
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|
|
822544
|
M14 x 2.0
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822547
|
M16 x 1.5
|
4
|
Metric
|
Fine
|
Stainless Steel
|
1
|
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|
|
822546
|
M16 x 2.0
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
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|
|
822548
|
M18 x 2.5
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
Log in to view price | |
|
|
822549
|
M20 x 2.5
|
4
|
Metric
|
Coarse
|
Stainless Steel
|
1
|
Log in to view price |
20 options | Item #:
822500
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15 options | Item #:
822535
Price
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