5/16"-18 Plug STI Tap, High Speed Steel
Model #: TASTI-5/16-18
Price: $8.30
Description: 5/16"-18 HS Plug STI Tap
- Sizes: 5/16"-18
For helical screw thread inserts, Class 3B. High speed steel, plug style. A 1/4-20 STI tap creates the proper thread (a bit larger than 1/4-20) for installing a 1/4-20 Recoil or Helicoil insert, which will accept a 1/4-20 threaded part.