My Account
Shopping Cart

Infinite Rule Security 61781-S Hitch Lock for B&W 3.0 Inch Tow and Stow 21K LB

Manufacturer

Infinite Rule Security

<h3>About Infinite Rule Security</h3><p>Infinite Rule Security was born out of a real-world problem. In 2012, company founder Brad Mateko went looking for a way to secure the off-road hooks on his own vehicle and found that no adequate product existed on the market. <strong>Necessity being the mother of invention</strong>, he set out to engineer a solution himself — and what started as a personal project became an award-winning line of locking pins and security hardware trusted by towing enthusiasts across the country.</p><p><a href="/14683-infinite-rule-security-trailer-hitch-lock-14537">Trailer hitch locks</a> sit at the heart of the Infinite Rule Security catalog. The company's machined stainless-steel locking pins are rigorously third-party tested for superior strength and rated up to 21,000 lbs, making them a serious choice for drivers who tow heavy loads. Every lock is built with multiple anti-theft features, including an innovative internal turn-key locking mechanism that resists picking, cutting, and brute-force attacks.</p><p>One of Infinite Rule Security's most valued selling points is their <strong>keyed-alike system</strong>. Customers who order multiple locks in a single order receive units that all operate on the same key — a huge convenience for anyone managing a truck, ball mount, and trailer coupler simultaneously. Combined with tight-fitting weatherproof rubber caps and O-rings that seal out dirt, water, and debris, these locks are built to perform reliably in all conditions.</p><p>Beyond receiver locks, Infinite Rule Security produces a comprehensive range of <a href="/14683-infinite-rule-security-trailer-hitch-pin-19997">trailer hitch pins</a> available in multiple diameters — including 1/2&quot;, 5/8&quot;, and 3/4&quot; — with application-specific fitment engineered to match popular hitch brands like B&amp;W, GEN-Y, Rhino Hitch, and others. This precision-fit philosophy means a lock that doesn't rattle, doesn't slip, and actually deters theft instead of just giving the appearance of security.</p><p>Infinite Rule Security also extends its protection to off-road accessories with <a href="/14683-infinite-rule-security-shackles-202507">shackle locks</a> and locking pins for D-rings, hooks, and recovery gear. Whether you're securing a recovery shackle on a trail rig or locking down towing hardware on a work truck, the product lineup covers the full spectrum of towing and off-road attachment points.</p><p>As a small, family-owned American business, Infinite Rule Security manufactures, ships, and services every product domestically. The company holds <strong>three design patents</strong> and earned first runner-up honors in the Best New Van/Pickup/Sport Utility Vehicle Product category from the Specialty Equipment Market Association (SEMA). For drivers who take their equipment seriously, Infinite Rule Security represents a level of craftsmanship and accountability that's increasingly rare in the security hardware space.</p><ul><li>100% made in the USA — manufactured, shipped, and serviced domestically</li><li>Third-party tested for strength and anti-theft performance</li><li>Keyed-alike system across multi-lock orders</li><li>Weatherproof rubber caps and O-rings for all-weather reliability</li><li>Application-specific fitment for leading hitch brands</li><li>Three design patents and SEMA award recognition</li></ul>

Part Number

61781-S
06/23/2036 1:22 PM
Sale Price

$159.81

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Infinite Rule Security 61781-S is a precision-engineered hitch lock specifically designed to fit B&W 3.0 inch Tow and Stow 21K LB adjustable ball mount hitches. This heavy-duty locking pin provides robust anti-theft protection for your towing equipment with its machined stainless steel construction and rigorous 21,000 lb load rating.

Key Features:

  • Custom-fit design for B&W 3.0 inch Tow and Stow 21K LB hitch systems
  • Machined stainless steel construction with 21,000 lb capacity rating
  • 100% made in the USA in family-owned facilities in Oxnard, California
  • Weatherproof rubber cap and O-ring protect keyhole from water, dirt, and debris
  • Corrosion-resistant materials for long-lasting durability
  • Internal turn-key locking mechanism for easy operation
  • Includes multiple keys for backup access

InfiniteRule Security has been manufacturing vehicle security solutions since 2012, creating innovative locking pins that deter theft of valuable towing equipment. Each lock is carefully inspected to ensure reliable performance and ease of use. The tight-fitting weatherproof cap keeps the locking mechanism functioning smoothly in all weather conditions.

Seamless purchase, fantastic price!

Best price online for years! Thank you thmotorsport

Would buy again

Awesome price that no one can match!

Easy to order

Prompt delivery

The casing on the speaker was broken, but I did have another casing to use. You only had one available, and I couldn't find it anywhere else, so I chose not to return it.

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy