Your search for "bung" revealed the following:
Drain Bung 1" Fine Thread Drain Plug & Base Black
$12.30
Transom drain plug (bung) complete. Colour - Black. Fine (plumbing) thread (1/2" BSP). Base (flattened oval shape) has 2 screw fixing. Requires a 25mm (1") mounting hole. Available in Black and White, Replacement Bung only available.
Drain Bung 1" Fine Thread Drain Plug & Base White
$12.30
Transom drain plug (bung) complete. Colour - Black. Fine (plumbing) thread (1/2" BSP). Base (flattened oval shape) has 2 screw fixing. Requires a 25mm (1") mounting hole. Available in Black and White, Also Replacement Bung only.
$10.40
The BU51 has a fine thread (1/2″ BSP). The base (oval in shape) has 2 screw fixings. 25mm mounting hole required. Available in both black and white. Choose colour or replacement plug from dropdown
Drain Bung 1" Square Thread Plug & Base White
$10.50
Burgee Nylon Transom drain plug (bung) complete. Colour - White. Medium pitch flat topped thread. Base (circular shape with flat across bottom) has 3 screw fixing. Equivalent to the Nairn brand. Requires a 1" (25.4mm) mounting hole. Available in Black and White, Replacement Bung only available.
Drain Bung 1" Square Thread Plug & Base Black
$10.50
Burgee Nylon Transom drain plug (bung) complete. Colour - Black. Medium pitch flat topped thread. Base (circular shape with flat across bottom) has 3 screw fixing. Equivalent to the Nairn brand. Requires a 1" (25.4mm) mounting hole. Available in Black and White, Replacement Bung only Available.
$9.80
The Tenob Big Bung allows fast draining of decks and hulls, without the blockage problems that happen with smaller bungs. Available in both black and white. Coarse thread for a fast action that is almost impossible to cross-thread. Require a 32mm mounting hole
$13.40
The Tenob Big Bung allows fast draining of decks and hulls, without the blockage problems that happen with smaller bungs. Available in both black and white. Coarse thread for a fast action that is almost impossible to cross-thread. Require a 41mm mounting hole
$5.00
Soft Wooden plugs/bungs for plugging skin fittings.A requirement for YNZ safety equipment for plugging holes and for failing skin fittings. 80mm long Peg shaped wooden bungs.13mm - (10-19mm)19mm - (15-23mm)25mm - (22-29mm)32mm - (26-35mm)38mm - (34-42mm)50mm - (45-56mm) From YNZ Safety Regulations of Sailing:Regulation Number 20.16 Soft wood plugs, tapered and...
$15.50
Twist Type Stainless Expanding Bung for Drain Tube Plug. Tightens in place with a clockwise rotation of the "T" handle.Made of Stainless steel and rubber.Suits a 25mm hole.
Drain Bung - 1" Square Thread, Plug only (White or Black)
$4.80
Burgee Nylon Transom drain plug only. Suits this 1" bung and base. Medium pitch flat topped thread. Equivalent to the Nairn brand. Select colour from drop down menu. Shop more bungs here