Stainless steel lacing button mushroom Type A 316 A4 marine grade
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Stainless Steel Lacing Mushroom Button
Type A - 316 A4 Marine Grade Hardware
Upgrade your boat’s canvas hardware with this premium Type A Lacing Mushroom Button. Engineered specifically for the harsh marine environment, these buttons provide a secure, low-profile anchor point for bungee loops, shock cords, and lacing lines on boat covers, sprayhoods, and bimini tops.
Key Features
- ✔ Anti-Snag Design: Recessed top allows fixing screws to sit flush.
- ✔ High Polish Finish: Mirror-polished for a premium look on any vessel.
- ✔ Maximum Durability: Heavy-duty 316 construction prevents rust and pitting.
- ✔ Universal Compatibility: Works with most 6mm to 8mm shock cords.
Technical Specs
| Material | 316 (A4) Stainless Steel |
| Overall Height | 12.5mm |
| Top Diameter | 19mm |
| Base Diameter | 10mm |
| Hole Diameter | 4mm |
| Rec. Screw Size | No. 8 Countersunk |
Compatibility / Fitment Guide
| Application Type | Compatible Models | Notes |
|---|---|---|
| Boat Canvas | Universal Fit | For Canopies, Sprayhoods & Tonneaus |
| Tying Systems | Bungee / Shock Cord | Optimized for cords up to 8mm diameter |
| General Marine | Deck Fittings | Corrosion-proof in saltwater environments |
OEM Cross Reference
| Manufacturer | Reference / SKU |
| 4Boats / J Clarke Marine | Lacing Button Type A (316) |
| Force 4 | 830062 (Equivalent) |
| Sheridan Marine | DF940C |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part from J Clarke Marine, manufactured to meet 316-grade marine standards, ensuring it outperforms standard factory plastic fittings.
How do I know if it is compatible?
Compare the dimensions (19mm top / 12.5mm height) with your existing fittings. If you are using standard 6mm or 8mm shock cord, this "Type A" mushroom button is the industry standard fitment.
What size screw should I use for installation?
A No. 8 (4.2mm) countersunk 316 stainless steel screw is recommended. The 4mm hole is designed to provide a snug fit for standard marine-grade self-tapping screws.
Note: 4boats.co.uk recommends verifying the mounting surface thickness before choosing your screw length. Ensure use of 316 fasteners to maintain the corrosion resistance of the button.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.