You're right, plastic conduit caps with two screws specifically for outdoor junction boxes can be a bit harder to find in local stores. Here's a breakdown of where to look, and some keywords to help your search

1. Online Retailers (Likely your best bet):
Amazon

Search for terms like: "PVC Conduit Cap 2 Screw" "Weatherproof Conduit Cap 2 Screw" "Liquidtight Conduit Cap Plastic" (look at the details; some are plastic) "UL Listed Conduit Cap Outdoor"

Home Depot / Lowe's (Online)

Even if you don't see them in-store, check their websites. Search using similar terms as above. Filter by "Material" (e.g., "Plastic", "PVC").

Specialty Electrical Supply Websites

Places like Platt Electric, Graybar, or other online electrical distributors often have a broader selection than big-box stores. They may require an account, but it's often free to sign up.

2. Local Electrical Supply Stores (More likely than big-box stores)

Call ahead! Save yourself a trip. Ask specifically for: "PVC Weatherproof Conduit Cap with two screws" "Gray PVC Conduit Cap for Outdoor Junction Box" "Liquidtight Non-Metallic Conduit Cap" Explain that you're looking for a plastic cap.

3. Important Considerations when Searching



Conduit Size

You need to know the exact size of the conduit you're using (e.g., 1/2 inch, 3/4 inch, 1 inch). Make sure the cap you buy is the correct size.

Type of Conduit

Are you using PVC (rigid) conduit, or something else (like liquidtight flexible conduit)? Caps are often specific to the type.

Weather Resistance

Look for a cap that's specifically rated for outdoor use, and ideally UL listed. Look for "Weatherproof" or "Wet Location" ratings.

Material

Be very specific when searching about "PVC" or "Plastic". Manufacturers don't always explicitly list everything and it can get overlooked.

Why Plastic with Two Screws are Less Common Locally



Metal's Perceived Durability

Metal conduit caps are often seen as more robust, and therefore are stocked more heavily.

Cost

Plastic caps can sometimes be slightly more expensive, especially those with two screws. Retailers may stock what they perceive as the "best value".*

Lower Demand: For many general electrical jobs, people use metal, so the demand for plastic is lower.Good luck with your search! Let me know if you have any other questions. Flag for review