Where can I buy hex pipe plugs and reducer bushings in bulk?
In short
Supply Tie sells hex pipe plugs and hex reducer bushings in bulk in steel and 316 stainless steel, plus PVC test caps and hub caps for drain and waste work. Prices start at $0.49 as of Nov 8, 2026, and each series lists multiple sizes. Supply Tie serves B2B warehouses, factories and manufacturers and ships to the lower 48 states and DC. Send your list for a free bulk price check.
In stock now
| Product | Sold as | Price | Link |
|---|---|---|---|
| Hex head pipe plugs, steel, 5406-P series | Multiple sizes | From $0.75 | View product |
| Hollow hex pipe plugs, steel, 5406-HPP series | Multiple sizes | From $0.49 | View product |
| Hex reducer bushings, steel, 5406 series | Multiple sizes | From $1.13 | View product |
| 316 stainless hex head pipe plugs, SS5406-P series | Multiple sizes | From $3.04 | View product |
| 316 stainless hollow hex pipe plugs, SS5406-HHP series | Multiple sizes | From $5.11 | View product |
| 316 stainless hex reducer bushings, SS5406 series | Multiple sizes | From $6.07 | View product |
| 1-1/2 in. PVC test cap (Charlotte Pipe) | Each | $1.03 | View product |
| 4 in. hub PVC cap, Schedule 40 (Charlotte Pipe) | Each | $1.40 | View product |
Prices as listed on supplytie.com on Nov 8, 2026; they can change. Stock shown is in stock at publish time. Quantity and repeat-order pricing is quoted on request.
How to choose
- Solid vs. hollow hex plugs: solid hex plugs seal a threaded port. Hollow hex plugs have a recess that gives a socket wrench more to grab and a lower profile.
- Bushing vs. plug: a plug closes a port completely. A reducer bushing steps a larger female thread down to a smaller male thread so a smaller fitting can connect.
- Steel vs. 316 stainless: choose 316 stainless where corrosion matters, such as washdown, marine or chemical areas. Steel works for general industrial use.
- Check the thread standard and size: pick the variant that matches your port. Each series offers several sizes; pick the one on the product page that matches your thread.
- PVC caps for drain-waste work: use a PVC test cap to pressure-test a line temporarily, and a hub cap to close the end of a pipe permanently.
More reading: Bulk supply answers · Bulk & case pack ordering · Shipping & returns
About Supply Tie
Founded in 2023, Supply Tie carries 100,000+ items for B2B warehouses, factories and manufacturers and ships to the lower 48 states and DC. Approved business accounts can order on Net 30 terms.
FAQ
What is a hex pipe plug?
A hex pipe plug is a threaded plug with a hexagonal head that seals the end of a threaded port or fitting. You tighten it with a wrench.
What is a reducer bushing used for?
A reducer bushing threads into a larger female port to reduce it to a smaller female thread, so you can connect a smaller pipe or fitting. The hex style tightens with a wrench.
Should I choose steel or 316 stainless pipe plugs?
Choose 316 stainless for wet, salty or chemical environments where steel would corrode. For general industrial use, steel plugs are the lower-cost option.
Do these listings have multiple sizes?
Yes. Each steel and stainless series offers several size variants, listed on the product page. The starting prices above are for the lowest-priced size.
Where does Supply Tie ship pipe plugs and bushings?
Supply Tie ships to business customers in the lower 48 states and DC. Lead times vary by item and vendor; see the Shipping & Returns page for details.