Designed specifically for use on flared JIC fittings, StockCap’s threaded plastic plugs are ideal for low pressure sealing applications.
Materials
Standard material is low density polyethylene.
Features
- Designed for use on flared JIC fittings.
 - Parts are knurled to aid during insertion and removal.
 - Positive seal for low pressure requirements.
 
Standard Colors
Stocked in Red. Other colors available upon request.

Threaded Plugs
| Part Name | Thread Size | Flange Diameter A (in) | Plug Length C (in) | 
|---|---|---|---|
| PT-5 | 5/16-24 | 0.440 | 0.440 | 
| PT-10 | 3/8-24 | 0.500 | 0.460 | 
| PT-15 | 7/16-20 | 0.620 | 0.530 | 
| PT-20 | 1/2-20 | 0.680 | 0.530 | 
| PT-25 | 9/16-18 | 0.810 | 0.500 | 
| PT-30 | 5/8-18 | 0.810 | 0.593 | 
| PT-35 | 3/4-16 | 0.940 | 0.750 | 
| PT-40 | 7/8-14 | 1.060 | 0.870 | 
| PT-45 | 1-1/16-12 | 1.250 | 0.890 | 
| PT-50 | 1-1/16-14 | 1.310 | 1.120 | 
| PT-55 | 1-5/16-12 | 1.500 | 0.930 | 
        The Flexible Alternative
For a pliable alternative consider our line of vinyl Plus Plugs.
- Flexible vinyl material provides a secure fit.
 - Easy to install and feature a lip for quick removal.
 - Adapts as it is placed into a hole. As pressure from the insertion process is released, the flexible vinyl material expands inside securing a tight fit.
 - Will not crack, split, or shred over time.