Seal plug

1. A seal plug, comprising:

a plug body having a first sealing portion and a second sealing portion;

an o-ring disposed about a radial outer periphery of the first sealing portion; and

a set of threads disposed about an outer periphery of the second sealing portion, the second sealing portion defining a recessed tool engagement portion;

wherein the radial outer periphery of the first sealing portion defines a channel configured to maintain a longitudinal positioning of the o-ring relative to the plug body.

2. The seal plug of claim 1 , wherein an outer diameter of the first sealing portion is less than a major diameter of the set of threads of the second sealing portion.

3. The seal plug of claim 1 , wherein an outer diameter of the o-ring is less than a minor diameter of the set of threads of the second sealing portion.

4. The seal plug of claim 1 , wherein the first sealing portion defines a plug stop configured to interact with a seal plug seat of a first fluid channel portion.

5. The seal plug of claim 1 , wherein the set of threads defined by the second sealing portion are configured as straight threads such that a major diameter of each thread is substantially equal along a longitudinal axis of the seal plug.

6. The seal plug of claim 1 , wherein the recessed tool engagement portion of the second sealing portion defines a hexagonal opening.

7. The seal plug of claim 1 , wherein the channel defined by the outer periphery of the first sealing portion comprises a first shoulder and a second shoulder opposing the first shoulder, the first shoulder and second shoulder configured to maintain the longitudinal position of the o-ring relative to the first sealing portion.

8. An injection mold, comprising:

a first mold plate having a first set of mold elements;

a second mold plate having a second set of mold elements, the second mold plate opposing the first mold plate; and

a cooling assembly carried by at least one of the first mold plate and the second mold plate, the cooling assembly comprising:

a fluid channel defined by the at least one first mold plate and second mold plate, and

a seal plug disposed within the fluid channel, the seal plug comprising:

a plug body having a first sealing portion and a second sealing portion,

an o-ring disposed about a radial outer periphery of the first sealing portion, and

a set of threads disposed about an outer periphery of the second sealing portion, the second sealing portion defining a recessed tool engagement portion;

wherein the radial outer periphery of the first sealing portion defines a channel configured to maintain a longitudinal positioning of the o-ring relative to the plug body.

9. The injection mold of claim 8 , wherein an outer diameter of the first sealing portion is less than a major diameter of the set of threads of the second sealing portion.

10. The injection mold of claim 8 , wherein an outer diameter of the o-ring is less than a minor diameter of the set of threads of the second sealing portion.

11. The injection mold of claim 8 , wherein the first sealing portion defines a plug stop configured to interact with a seal plug seat of a first fluid channel portion.

12. The injection mold of claim 8 , wherein the set of threads defined by the second sealing portion are configured as straight threads such that a major diameter of each thread is substantially equal along a longitudinal axis of the seal plug.

13. The injection mold of claim 8 , wherein the recessed tool engagement portion of the second sealing portion defines a hexagonal opening.

14. The injection mold of claim 8 , wherein the channel defined by the outer periphery of the first sealing portion comprises a first shoulder and a second shoulder opposing the first shoulder, the first shoulder and second shoulder configured to maintain the longitudinal position of the o-ring relative to the first sealing portion.

15. A method for assembly of a cooling assembly, comprising:

inserting a seal plug into a fluid channel of a housing;

advancing a first sealing portion of the seal plug into a first fluid channel portion of the fluid channel to engage an o-ring of the first sealing portion with a wall of the first fluid channel portion; and

rotatably advancing a second sealing portion of the seal plug into a second fluid channel portion of the fluid channel to engage a plug stop of the first sealing portion with a seal plug seat of the first fluid channel portion, the second sealing portion defining a recessed tool engagement portion;

wherein the o-ring is disposed in a channel defined on a radial outer periphery of the first sealing portion.