Designed for reliable drainage on boats and marine vessels, this 316 Stainless Steel Garboard Drain Plug provides a durable and corrosion-resistant solution for transom and hull drainage applications.
Manufactured from marine-grade 316 stainless steel, it offers excellent resistance to corrosion in both freshwater and saltwater environments while providing a bright, high-polished appearance that complements other stainless steel boat hardware.
The round flange features three countersunk mounting holes for secure installation against the boat hull or transom, while the threaded drain plug provides a dependable connection for controlled water drainage.
The square-head design allows the plug to be conveniently tightened or removed with a standard wrench, making routine maintenance and seasonal drainage easier.
Designed around a 1/2-inch NPT threaded connection, this Marine Garboard Drain Plug is suitable for a variety of boats, yachts, fishing boats, cruisers and other marine vessels. It can be used for bilge drainage, transom drainage and replacement of worn or damaged boat drain hardware.
With its compact construction, polished stainless steel finish, secure three-hole mounting flange and corrosion-resistant 316 stainless steel body, this Boat Drain Plug is a practical choice for new installations, repair projects and marine hardware replacement.
Brand | LGRIG® |
Product Name | 316 Stainless Steel 1/2" NPT Garboard Drain Plug |
Common Name | Marine Garboard Drain Plug |
Product Type | Boat Drain Plug / Garboard Drain Plug |
Material | 316 Stainless Steel* |
Surface | High Polished / Mirror Polished |
Size | 1/2" |
Flange Type | Round Flange |
Mounting Holes | 3 Countersunk Holes |
Head Type | Square Head |
Features | Corrosion Resistant, Durable, Watertight, Easy Installation |
Installation | Surface / Transom Mount |
Mounting | Screw Fastening |
Function | Boat Drainage / Water Drainage |
Use | Draining Water from Boat Hull or Transom |
Application | Boats, Yachts, Fishing Boats, Cruisers, Marine Vessels |
Suitable Environment | Freshwater and Saltwater |
Marine Application | Yes |
Finish | Mirror Polished Stainless Steel |
Origin | China |

Part No. | SIZE | A | B | C | D | E | F | Weight(KG) |
LGSSGDPR12 | 1/2" | 50.0 | 33.0 | 32.0 | 4.5 | 24.5 | 5.2 | 0.110 |