Answering the need for a secure, adjustable seating setup on jon boats, fishing boats, kayaks, and skiffs, these boat seat clamp mounts offer 7.5″ to 18″ height ranges, 360° swivels, and tool-free or tool-assisted installations. They’re ideal for anglers, recreational boaters, and boat owners seeking easy repositioning and corrosion resistance. The selections below are among the most reliable clamp-on options for common seat patterns and marine environments.
| Product | Best For | Key Feature | Notes |
|---|---|---|---|
| Attwood 15700-3 Seat Mount | Universal seating needs | 7.5″–18″ height adjust; durable steel with powder coat | Widely compatible; corrosion resistant |
| CLLOMAGY Boat Seat Swivel Base Mount | Jon boats and bass boats | 360° swivel; 7.5″–18″ height; galvanized steel | Bold clamp design; marine-grade finish |
| ERGOSEAT Boat Seat Mount Clamp On Base | “Tool-free” quick setup | No tools required; quick-release base; versatile holes | Balance of convenience and security |
| Hazztoll Seat Mount | Portable, adjustable seating | 360° rotation; 9″–19″ range; heavy-duty clamp | Sturdy locking; stainless hardware included |
| XinKunmarine 360° Swivel Base | Heavy-duty, versatile use | 7.5″–18″; tool-free or screw-secured | Corrosion-resistant galvanized steel |
Below are five selected options. Each entry explains who benefits most, why it was chosen, and any notable limitation to consider before purchase.
Attwood 15700-3 Seat Mount, Clamp-On With Swivel

Best for universal seating setups on a variety of boats. This swivel mount fits most common seat hole patterns, offering flexible installation options and a robust steel build with black powder coating for corrosion resistance. The height range from 7.5 inches to 18 inches supports ergonomic seating on longer trips.
Who it’s best for: boat owners needing broad compatibility and durable performance without specialized hardware. Why selected: strong, long-lasting construction with versatile installation. Caution: ensure your seat pattern matches the mount’s standard hole layout for a snug fit.
Boat Seat Swivel Base Mount, CLLOMAGY

Best for Jon and bass boats seeking a solid clamp-on solution with a clean finish. It replaces existing swivel bases and supports 360° rotation with a 7.5″–18″ range and a galvanized steel frame finished in black powder coat for corrosion resistance.
Who it’s best for: anglers and boaters needing a straightforward upgrade to swivel seating. Why selected: strong clamp design and wide compatibility. Caution: verify your bench or seat pattern aligns with the mounting holes for best stability.
ERGOSEAT Clamp On Base With Swivel

Best for tool-free setups where quick removal is important. This model uses a quick-release swivel base and a sturdy iron plate with two rows of slotted holes to fit a variety of sizes, plus a durable black powder-coated steel frame.
Who it’s best for: boaters who want rapid assembly and disassembly. Why selected: no tools required for attachment. Caution: check the plate size and hole spacing to confirm fit with your seat.
Hazztoll Seat Mount Clamp-On With Swivel

Best for portable, secure seating on smaller craft or temporary setups. The 360° swivel and heavy-duty clamp system support rotation and stable seating from 9″ to 19″. The kit includes hardware and a stainless pipe saddle for added stability in rough water.
Who it’s best for: boaters needing a robust, adjustable clamp with complete hardware. Why selected: rugged build and complete mounting hardware. Caution: heavier clamp may be harder to reposition on ultra-light boats.
XinKunmarine 360° Swivel Base Mount

Best for heavy-duty, versatile applications across jon boats, fishing boats, kayaks, and skiffs. It features a 360° swivel and adjustable 7.5″–18″ height range, with a tool-free option or screw-secured installation, all in galvanized steel with black powder coating.
Who it’s best for: users needing strong, corrosion-resistant mounting that adapts to different mounting hole patterns. Why selected: dual installation modes and solid construction. Caution: confirm seat hole patterns to ensure compatibility with your boat’s seats.
Buying Guide: What To Consider When Selecting A Boat Seat Clamp Mount
Installation type: Choose between tool-free quick-release models and traditional screw-secured clamps based on how often you rearrange seating.
Height range: Ensure the 7.5″–18″ range supports your typical seating position and casting posture.
Rotation: A full 360° swivel improves reach and visibility; 180° or partial swivels may suffice on smaller crafts.
Material and finish: Look for galvanized steel or stainless hardware with powder coating to resist saltwater and UV exposure.
Seat pattern compatibility: Verify hole patterns and mounting footprint match your boats’ seats to avoid fit issues.
Durability vs portability: Heavier clamps offer durability but can hinder quick moves; lighter options improve portability but may feel less sturdy.
FAQ
- What type of boats can these clamps fit? They fit jon boats, bass boats, kayaks, skiffs, and most benches with standard seat mounting holes.
- Do these require tools? Some models are tool-free with quick-release bases; others may require basic tools for a secure fit.
- Can I remove the seat mount quickly? Quick-release designs enable fast removal, while traditional clamps may take longer but offer tighter security.
- Will these corrode in saltwater? Choose models with galvanized steel and powder-coated finishes for better corrosion resistance in marine environments.
- How do I know if the mounting holes match? Check the boat seat mounting hole spacing and pattern before purchasing to ensure compatibility.
- Is 360° rotation always beneficial? Yes for full visibility while casting or steering, but consider if your space requires limited rotation.