What material should marine hardware be made of?

For most exposed hardware, 316 stainless steel is the marine standard — it resists salt corrosion far better than 304 stainless or plated steel. Marine-grade aluminum, UV-stabilized nylon, and King StarBoard are also common for non-structural fittings.

How do I know a replacement seat or hatch will fit?

Measure the mounting pattern (bolt spacing), the cutout or base dimensions, and any post diameter or height on the part you’re replacing. Match those to the new part’s specs — outfitting parts follow common sizes but are not universal, so confirming dimensions avoids returns.

Do I need backing plates for deck hardware?

For anything that takes load — grab rails, cleats, ladder steps, seat pedestals — yes. A backing plate spreads the load across a larger area of the deck or transom so fasteners don’t pull through under stress.

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Scanstrut

Scanstrut SC29 Radar Guard f/M92722 f/Use In Combination w/Raymarine Quantum Radar

Manufacturer: ScanstrutPart #: SC29SKU: 83690

Stainless Steel

$525.00● In stock

Item #: 83690

Category: Radar/TV Mounts

● In stock — ships fast from US warehouses

Ships from US warehouses
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Description

SC29 Radar Guard for M92722 for Use In Combination with Raymarine Quantum Radar Polished stainless steel guards protect radome from damage and reduce wear on the sails. Features: Mounted using radome bolts, no extra fastenings required Easy to fit – between mast mount and radar antenna Manufactured from marine grade 316 stainless steel

Specifications

Brand	Scanstrut
Part Number	SC29
EverTide SKU	83690
UPC	5060114795693
Material	Stainless Steel

Specifications are provided by the manufacturer. Confirm fitment for your application before ordering, or contact us and we'll help.

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Returns & warranty

Returns are accepted within 30 dayson items that are unused and in their original packaging. Some items may be subject to a manufacturer restocking fee. Special-order items may not be eligible — if you're unsure, ask us before ordering.

Scanstrut productscarry the manufacturer's standard warranty. For a warranty claim or a return authorization, see our full returns policy or contact us.

Boat Outfitting — frequently asked

What material should marine hardware be made of?: For most exposed hardware, 316 stainless steel is the marine standard — it resists salt corrosion far better than 304 stainless or plated steel. Marine-grade aluminum, UV-stabilized nylon, and King StarBoard are also common for non-structural fittings.
How do I know a replacement seat or hatch will fit?: Measure the mounting pattern (bolt spacing), the cutout or base dimensions, and any post diameter or height on the part you’re replacing. Match those to the new part’s specs — outfitting parts follow common sizes but are not universal, so confirming dimensions avoids returns.
Do I need backing plates for deck hardware?: For anything that takes load — grab rails, cleats, ladder steps, seat pedestals — yes. A backing plate spreads the load across a larger area of the deck or transom so fasteners don’t pull through under stress.

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