---
product_id: 401449600
title: "3/8 Inch, Heavy Duty, (300 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) - Blue (Blue)"
brand: "tie boss"
price: "£32.51"
currency: GBP
in_stock: true
reviews_count: 12
category: "Tie Boss"
url: https://www.desertcart.co.uk/products/401449600-3-8-inch-heavy-duty-300-lbs-working-load-limit
store_origin: GB
region: United Kingdom
---

# 300 lbs load capacity Weather resistant nylon 15 ft rope length 3/8 Inch, Heavy Duty, (300 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) - Blue (Blue)

**Brand:** tie boss
**Price:** £32.51
**Availability:** ✅ In Stock

## Summary

> 🔒 Secure your load like a pro—no knots, no stress!

## Quick Answers

- **What is this?** 3/8 Inch, Heavy Duty, (300 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) - Blue (Blue) by tie boss
- **How much does it cost?** £32.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/401449600-3-8-inch-heavy-duty-300-lbs-working-load-limit)

## Best For

- tie boss enthusiasts

## Why This Product

- Trusted tie boss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heavy-Duty Strength:** Supports up to 300 lbs for your toughest jobs.
- • **One-Handed Operation:** Pull, lock, and release with a simple motion—no tools needed.
- • **Weatherproof Durability:** Built to resist rust, freeze, and wear—indoors or out.
- • **Effortless Load Security:** Patented Jam Cleat locks tension—no knots, no hassle.
- • **Made in the USA with Lifetime Warranty:** Crafted in Ohio, guaranteed for life (except rope).

## Overview

The Tie Boss 3/8 Inch Heavy Duty Tie Down System features a patented Jam Cleat for effortless, knot-free tensioning and release. Made from durable, weather-resistant nylon with a 300 lbs working load limit, it includes 15 feet of solid braid rope and heavy-duty hooks. Perfect for securing cargo indoors or outdoors, it’s crafted in the USA and backed by a limited lifetime warranty.

## Description

Product description Trusted by countless users, Tie Boss is the go-to tool for simplifying tough jobs and getting things done right! The Heavy Duty 3/8" Tie Boss is made from durable, glass-filled nylon. It is built to endure all weather conditions, making it ideal for outdoor use. Its intuitive design automatically locks the rope in the jam cleat when tension is applied, ensuring a secure hold with minimal effort. Tie Boss features an additional anchor point on its body, allowing you to wrap around your gear and tie back into itself. This creates a 2:1 mechanical advantage, giving you extra leverage for the tightest tie-down possible. Shop Tie Boss Products 3/8 Inch Tie Boss 1/4 Inch Tie Boss Kayak Hanger Sling Block and Tackle

Review: Tie Boss - 3/8 Inch, Heavy Duty - The Tie Boss 3/8" heavy-duty system is a game changer for securing loads. Super easy to use—no knots needed—and it tightens down quickly with one hand. Feels very solid and holds strong under pressure. Great for hauling, yard work, or general tie-down use. Durable and reliable—definitely worth having on hand.
Review: Great investment. - I love these units, they are well engineered with simplicity I am able to suspend stuff in my work trailers and easily remove the items that I am hanging for a quick change. I bought four of them.

## Features

- EASY AND SAFE: Eliminate the dangers of bungee cord snap backs and poorly tied knots. Tie Boss has a patented Jam Cleat system allows constant tension without tying off. This is for heavy duty applications and can be used indoors and outdoors.
- PULL AND PLACE TO LOCK: When securing your load, simply pull tight, and the rope will securely lodge into the jam cleat under tension. When ready to release, just pull the rope and unlock like a venetian blind. No need for constant knot tying.
- HOIST THINGS WITH EASE: Tie Boss is perfect for hoisting and storing cargo up in a garage because they are self locking. Whenever your cargo is hoisted to your desired height let go, and the rope will catch in the jam cleat. To release it, no buttons or ladders need to be used. Simply lift the rope out to a 20 degree angle and lower your cargo.
- DURABLE & WEATHER RESISTANT - Made in America and crafted from a durable heavy-duty Nylon, our 3/8 Inch Tie Boss boasts a 300 lb Working Load Limit. With no moving parts, it's built to withstand the elements without rusting, freezing, or breaking.
- INCLUDES: 1 Tie Boss Jam Cleat, 15 Ft of solid braid, polypropylene rope, 1 G-Hook, 1 S-Hook. Ideal for all outdoor enthusiasts, motor vehicle owners, or any Do It Yourselfers.
- MADE IN THE USA WITH A LIMITED LIFETIME WARRANTY - We offer a Lifetime warranty on all parts with the exception of the rope. This product is manufactured in our facility in Piqua, Ohio

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09KMFNYLF |
| Best Sellers Rank | #723 in Automotive ( See Top 100 in Automotive ) #8 in Powersports Tie-Downs |
| Brand | Tie Boss |
| Brand Name | Tie Boss |
| Color | Blue |
| Compatible with Vehicle Type | ATV, Bicycle, Kayak, Motorcycle, Snowmobile |
| Customer Reviews | 4.6 out of 5 stars 1,345 Reviews |
| Fastener Type | S-Hook |
| Hardware Material | Zinc Plated Steel |
| Included Components | Rope, G Hook, S Hook |
| Item Type Name | Tie Down System |
| Load Capacity | 300 Pounds |
| Manufacturer | Tie Boss |
| Manufacturer Part Number | RTB3815BLU |
| Manufacturer Warranty Description | lifetime |
| Material | Nylon |
| Material Type | Nylon |
| Model Number | RTB3815BLU |
| Number of Pieces | 1 |
| Size | Large |
| Tensile Strength | 300 Pounds |
| UPC | 890669002183 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | ATV, Bicycle, Kayak, Motorcycle, Snowmobile |

## Product Details

- **Brand:** Tie Boss
- **Color:** Blue
- **Material:** Nylon
- **Size:** Large
- **Vehicle Service Type:** ATV, Bicycle, Kayak, Motorcycle, Snowmobile

## Images

![3/8 Inch, Heavy Duty, (300 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) - Blue (Blue) - Image 1](https://m.media-amazon.com/images/I/61hacj6NGWL.jpg)
![3/8 Inch, Heavy Duty, (300 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) - Blue (Blue) - Image 2](https://m.media-amazon.com/images/I/615EnlaqhEL.jpg)
![3/8 Inch, Heavy Duty, (300 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) - Blue (Blue) - Image 3](https://m.media-amazon.com/images/I/61-GDhj73VL.jpg)
![3/8 Inch, Heavy Duty, (300 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) - Blue (Blue) - Image 4](https://m.media-amazon.com/images/I/71pwnMe4QrL.jpg)
![3/8 Inch, Heavy Duty, (300 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) - Blue (Blue) - Image 5](https://m.media-amazon.com/images/I/6172BxKUwXL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tie Boss - 3/8 Inch, Heavy Duty
*by S***1 on March 20, 2026*

The Tie Boss 3/8" heavy-duty system is a game changer for securing loads. Super easy to use—no knots needed—and it tightens down quickly with one hand. Feels very solid and holds strong under pressure. Great for hauling, yard work, or general tie-down use. Durable and reliable—definitely worth having on hand.

### ⭐⭐⭐⭐⭐ Great investment.
*by D***. on April 12, 2026*

I love these units, they are well engineered with simplicity I am able to suspend stuff in my work trailers and easily remove the items that I am hanging for a quick change. I bought four of them.

### ⭐⭐⭐⭐⭐ Great product
*by S***A on May 23, 2026*

These tie downs are the best. So much easier to use than straps.

## Frequently Bought Together

- Tie Boss - 3/8 Inch, Heavy Duty, (300 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) - Blue (Blue)
- Tie Boss - 1/4 Inch, Medium Duty, (150 lbs Working Load Limit), Weather Resistant, Tie Down, Rope Tightening System, (w/15 ft Rope) (Pack of 1) (Green)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-09*