Customizable KevLok® Tie-Down Straps for Marine Environments

It is the fully-customizable nature of AGM Container’s KevLok brand boat tie-down straps that makes them the ideal securing solution for applications in marine environments.

Interlinked tie-down straps

All AGM KevLok boat tie-down straps are custom-designed by the user in cooperation with our engineering department. As a result, each strap is uniquely suited to the given user’s application. Furthermore, KevLok tie-down straps can be designed to meet commercial shipping and military specifications for use across numerous industries.

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KevLok Brand Boat Tie-Down Straps

From America’s lakes and highways, to the harsh-desert terrain and military bases in the Middle East, KevLok is trusted to perform under the toughest conditions

AGM’s KevLok boat tie-down straps are handmade in the USA and rigorously tested to ensure the utmost standard in safety and durability.

Below are several examples of possible boat tie-down strap assemblies for trailering a boat, as well as securing cargo:

AGM Recommended Transom Strap Assembly:

A 6-foot boat tie-down strap with anchor plate, ratchet buckle, S-Hook, and polyester webbing.

Component Type Fixed End Hardware Webbing Fastener Adjustable End Hardware
Component Name Anchor Plate Polyester Ratchet S-Hook
Component Description 1” Zinc Plated Anchoring Plate. 1,000lbs. Breaking Strength 1”W x 6’L Commercial Webbing. 3,000lbs Breaking Strength 1” Zinc Plated Ratchet. 1,500lbs. Breaking Strength 1” Zinc Plated Tie-Down Hook. 2,500lbs. Breaking Strength
*overall breaking strength is equal to the weakest component

The above boat tie-down strap assembly is designed to permanently mount to the rear of a boat trailer and secure a boat’s transom while traveling. Therefore, this design is highly abrasion, UV, and water resistant to enable a secure load while eliminating the chances of losing the strap.

Why the Anchor Plate?

The recommended anchor plate provides a method for permanent attachment of the assembly to a trailer. Specifically, benefits include a more secure load, as well as the reduced likelihood of a lost or stolen strap.

Why the Polyester Webbing?

The polyester webbing has a greater abrasion resistance and lower stretch rate than either nylon or polypropylene, and features a high level of resistance to both UV and water.

Why the Ratchet Buckle?

The ratchet buckle provides a superior grip compared to either cam or over-center buckles. Therefore, the ratchet buckle affords the user a greater strap tension between the trailer and the boat. Furthermore, the ratchet buckle is better-suited to longer strap lengths.

Why the S-Hook?

This 1” tie-down S-Hook provides 1,800lbs breaking strength with an easy connection system for a quick and secure connection to most boat transoms.

AGM Recommended Gunwale Strap Assembly:

6-foot long boat tied-down straps with Double J-Hook, 2-inch ratchet buckle, Vinyl-Coated Double J-Hook, and Polyester Webbing.

Component Name Fixed End Hardware Webbing Fastener Adjustable End Hardware
Component Name Double J-Hook Polyester Ratchet Vinyle-Coated Double J-Hook
Component Description 2” Double-J Wire Hook. 5,000lbs. Breaking Strength 2” W x 6′ L Commercial Webbing. 6,000lbs Breaking Strength 2” Zinc Plated Ratchet. 8,000lbs Breaking Strength 2” Double-J Wire Hook. 5,000lbs. Breaking Strength
*overall breaking strength is equal to the weakest component

The above boat tie-down strap assembly is designed to hook onto the frame of a boat trailer and secure a boat by the gunwale rails. This design is highly abrasion, UV, and water resistant to enable a more secure load. In addition, the breaking strength is greater than other assemblies proposed here, which provides a wider range of use both on and off the trailer. Please note that some S-Hooks may be substituted for the Double J-Hook with no loss of functionality.

Why the Double J-Hook?

The double J-hook will fit over boat gunwale rails 2” thick or less, while providing a secure hold. In addition, the double J-hook is assembled in line with the assembly’s webbing to prevent strap-twist, providing an even tension between the boat and the anchoring point. Thus, this assembly design is ideal for aluminum-sided gunwale boats.

Why the Polyester Webbing?

This strap recommendation makes use of the polyester webbing for reasons similar to those in the Transom Strap Recommendation. That is, the polyester webbing has a greater abrasion resistance and lower stretch rate than either nylon or polypropylene, and it features a high level of resistance to both UV and water damage.

Why the Ratchet Buckle?

The ratchet buckle provides a superior grip and tension than either cam or over-center buckles. Thus, the ratchet buckle affords the user a more secure strap connection between the trailer and the boat. Furthermore, the ratchet buckle is better-suited to longer strap lengths.

AGM Recommended Cargo Strap Assembly:

2 to 8 foot boat tie-down straps with quick disconnect, over-center buckle, and polypropylene webbing.

Component Name Fixed End Hardware Webbing Fastener Adjustable End Hardware
Component Name Quick Disconnect Polypropylene Over-Center None
Component Description 1” Stainless Steel. 450lbs. Breaking Strength 1”W x 2’-8’L. 600lbs. Breaking Strength 1” Stainless Steel. 600lbs. Breaking Strength N/A
*overall breaking strength is equal to the weakest component

The above boat tie-down strap assembly is designed to secure cargo, such as battery boxes and gas cans, as well as miscellaneous equipment onboard a boat. Accordingly, this 1-piece design is intended for light duty use. Please note that a 2-piece assembly design featuring snap hooks or S-Hooks may also be suitable depending on the onboard anchor points and cargo. In addition, snap buckles or cam buckles may similarly be suitable to replace the over-center buckles.

Why the Quick Disconnect?

The 1” quick disconnect provides a 450lbs breaking strength with an easy connection and release system for a quick and secure connection to the over-center buckle. In this way, tension can be easily and quickly released from cargo in an emergency.

Why the Polypropylene Webbing?

Although polypropylene is not as resistant to abrasion or UV as either polyester or nylon, polypropylene is highly water-resistant, and thus performs well in wet environments for light-duty tasks as a low-cost alternative to other webbing options.

Why the Over-Center Buckle?

Over-center buckles provide superior grip than cam buckles. In addition, the over-center buckle is better-suited to the shorter strap lengths typical of miscellaneous onboard cargo straps.

More Information

For more information about AGM’s KevLok boat tie-down straps or for help designing the tie-down strap that is right for you, see our KevLok strap configurator, or give us a call at (520) 881-2130. Hours of operation are 8:00 a.m. to 5:00 p.m., Monday through Friday, Mountain Standard Time (MST).

DISCLAIMER: AGM tie-down strap assemblies and individual pieces are not built to OSHA or DOT standards, and are not intended to protect or support human life, either directly or indirectly. Therefore, AGM will not assume liability for any injuries that may result from misuse.