AT Screw / Thread Inserts & Kits

AT screw thread inserts and kits are used to repair stripped or damaged internal threads and restore a reliable fastening point (application dependent). Thread repair inserts are commonly used in maintenance and fabrication work on components made from aluminum, steel, and other metals when threads have been over-torqued, cross-threaded, or worn. Using an insert can help bring a hole back to a standard fastener size and improve durability compared to a damaged base thread.


Alfa Tools STNPT66591 1/8-27 HSS NPT SCREW THREAD INSERT TAP

Alfa Tools STNPT66591 1/8-27 HSS NPT SCREW THREAD INSERT TAP

SKU: AT-STNPT66591
MPN: STNPT66591

Sale price $66.76 List price $133.19
Save $66.43
Alfa Tools STNPT66592 1/4-18 HSS NPT SCREW THREAD INSERT TAP

Alfa Tools STNPT66592 1/4-18 HSS NPT SCREW THREAD INSERT TAP

SKU: AT-STNPT66592
MPN: STNPT66592

Sale price $76.36 List price $152.33
Save $75.97
Alfa Tools STNPT66593 3/8-18 HSS NPT SCREW THREAD INSERT TAP

Alfa Tools STNPT66593 3/8-18 HSS NPT SCREW THREAD INSERT TAP

SKU: AT-STNPT66593
MPN: STNPT66593

Sale price $100.23 List price $199.96
Save $99.73
Alfa Tools STNPT66594 1/2-14 HSS NPT SCREW THREAD INSERT TAP

Alfa Tools STNPT66594 1/2-14 HSS NPT SCREW THREAD INSERT TAP

SKU: AT-STNPT66594
MPN: STNPT66594

Sale price $159.49 List price $318.19
Save $158.70
Alfa Tools STNPT66595 3/4-14 HSS NPT SCREW THREAD INSERT TAP

Alfa Tools STNPT66595 3/4-14 HSS NPT SCREW THREAD INSERT TAP

SKU: AT-STNPT66595
MPN: STNPT66595

Sale price $224.63 List price $448.15
Save $223.52
Alfa Tools STNPT66596 1-11 1/2 HSS NPT SCREW THREAD INSERT TAP

Alfa Tools STNPT66596 1-11 1/2 HSS NPT SCREW THREAD INSERT TAP

SKU: AT-STNPT66596
MPN: STNPT66596

Sale price $338.98 List price $676.30
Save $337.32