Marine maintenance hardware designed to keep bilges draining reliably while resisting corrosion. Boat owners gain confidence from a sturdy, no-fuss fit, Young Wolf Bilge Drain Plug. Is it the right choice for a hull with a 25mm (1-inch) drain opening?
⚡ At a Glance
- • Fit and Compatibility: Compact oval flange and measured fixing points suit garboard drain locations and small hull openings
- • Best for: Boat owners, small-craft maintainers and DIY marine repair jobs that need a durable drain solution
- • Not ideal for: Larger drains or applications that require quick-release or tool-free plugs
316 stainless steel construction targets longevity in saltwater environments. Designed with a compact flange and precise mounting holes for secure attachment.
Long-lasting corrosion resistance - With 316 stainless steel
Made from 316 stainless steel, a material chosen for its resistance to pitting and corrosion in marine conditions. The metal composition reduces chemical attack from saltwater and prolongs service life.
Fewer replacements and less visible deterioration over time, so fittings remain reliable through seasons of use.
Secure mounting that stays put - With 5mm screw holes and 40mm hole distance
Screw hole diameter measures 5mm and the hole centres sit 40mm apart, providing a standard pattern for bolting the flange down. Mechanical fastening prevents the plug from working loose under vibration and movement.
Consistent, secure fixing reduces the risk of loss or accidental ejection while underway, matching user reports of a reliably snug fit.
Straightforward fit for common small drains - With 25mm bung outer diameter and oval flange
Bung outer diameter is 25mm, equivalent to a 1-inch opening, while the flange dimensions are 50 x 38 x 50mm, providing a low-profile cover. The oval shape conforms to garboard areas where space is limited.
Works well on standard small-boat drain holes, sitting neatly on the hull without excessive overhang.
✨ The 4 Key Reasons for Young Wolf Bilge Drain Plug
- 316 Stainless Steel – Exceptional resistance to saltwater corrosion for long service life
- Secure Screw Fixing – Mechanical fastening prevents looseness and loss while sailing
- Oval Flange Design – Low-profile shape fits tight garboard spaces and reduces snagging
- Compact Bung Diameter – Matches standard 1-inch openings for easy replacement and compatibility
📋 Technical Details at a Glance
- Material: 316 Stainless Steel
- Bung Outer Diameter: 25mm (1 inch)
- Screw Hole Diameter: 5mm (0.2 inch)
- Hole Distance (centre to centre): 40mm (1.6 inch)
- Flange Size (L x W x H): 50 x 38 x 50mm (2 x 1.5 x 2 inch)
❓ Frequently Asked Questions
Q: Is the plug suitable for marine use?
A: Yes, listed as a 316 stainless steel bilge drain plug intended for garboard and marine applications.
Q: What hole size does the plug fit?
A: The bung outer diameter is 25mm, which corresponds to a 1-inch opening, so it fits standard small drain holes.
Q: How is the plug secured to the hull?
A: Fixing uses 5mm screw holes with a centre-to-centre spacing of 40mm, allowing the flange to be bolted down for a secure fit, and reviewers note the plug stays secure and does not get lost.
🏆 Our Verdict
The Young Wolf Bilge Drain Plug suits boat owners and anyone carrying out small-craft bilge repairs who need a durable, reliably fastened drain fitting. Precise dimensions and marine-grade stainless steel give a corrosion-resistant, secure mounting that matches common 1-inch openings. While an upfront purchase may feel like an investment, longevity and secure fixing make it a cost-effective choice over time.
