Attwood Marine Swivel Bolster Brackets, 11-Gauge Galvanized Steel, For 2 x 6 in Bunk Boards, 1/2 in Bolt Mount

Overview

This Attwood Marine swivel bolster bracket is a galvanized steel support bracket for boat trailer bunk and bolster board setups where the board angle needs to match the hull. It is made from heavy 11-gauge galvanized steel and uses a 3.5 inch wide swivel angle bracket that pivots for angled or flat mounting of 2 inch x 6 inch bunk or bolster boards.

The slotted bracket gives vertical adjustment during trailer setup, which helps when replacing worn hardware or fine-tuning bunk height for better hull support. Non-slip dimples help the bracket grip once tightened, and the assembly mounts with a 1/2 inch bolt.

Key features

• Heavy 11-gauge galvanized steel construction for use around trailer bunks, ramps, and wet launch areas.
• Swivel angle bracket pivots for angled or flat mounting against 2 inch x 6 inch bunk or bolster boards.
• Slotted bracket allows vertical adjustment during installation or trailer refit work.
• Non-slip dimples help hold the bracket position once the hardware is tightened.
• Mounts with a 1/2 inch bolt, making it suitable for common boat trailer bracket installations.
• Available in 8 inch, 10 inch, and 12 inch bracket sizes to match different bunk height and support requirements.

Variants

This bracket is offered in three size configurations for matching the height and support layout of the trailer bunk system.

The size and assembled length change between variants. The galvanized steel construction, swivel-style angle bracket, 2 inch x 6 inch bunk board application, slotted adjustment, and 1/2 inch mounting bolt requirement remain consistent across the range.

• 11360-1: Size 8 inch, assembled length 9 inch. This shorter configuration suits trailer setups where the bunk needs a lower support point or where clearance around the frame is limited.
• 11361-1: Size 10 inch, assembled length 11 inch. This mid-size option adds height while keeping the same swivel bracket function for angled bunk alignment.
• 11362-1: Size 12 inch, assembled length 13 inch. This taller version is used where the bunk or bolster board needs more lift from the trailer frame.

Installation and setup

During installation, the bracket should be aligned so the bunk board rests evenly against the hull and does not create a hard pressure point. The swivel angle helps the board follow the hull shape, while the vertical slot gives room to adjust height before final tightening.

This type of bracket is commonly used when rebuilding trailer bunks, replacing corroded support hardware, or changing bunk height after fitting new boards or carpet. Final fit should be checked with the boat loaded on the trailer so the support angle and height match the actual hull position.

Use cases on board

This bracket is a practical match for boat owners, trailer shops, and marine service teams working on bunk-style trailers for fishing boats, runabouts, and other trailered vessels. It is most useful where the trailer needs adjustable bunk support rather than a fixed flat bracket.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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