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 $63.59 List price $126.86
Save $63.27
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 $72.72 List price $145.09
Save $72.37
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 $95.46 List price $190.44
Save $94.98
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 $151.90 List price $303.02
Save $151.12
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 $213.94 List price $426.81
Save $212.87
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 $322.83 List price $644.08
Save $321.25