THE EQUIPMENT LOCK COMPANY Heavy-Duty Adjustable Cargo Door Lock — Powder-Coated Orange, Tubular Barrel Keyed-Differently, Fits 9¾

Built for demanding transport and storage environments, this adjustable Equipment Lock Company cargo door lock clamps the innermost vertical locking bars of semi-trailers and sea or construction containers, providing visible, corrosion-resistant protection without permanent mounting. Constructed from two interlocking square steel tubes with 3/16" walls and reinforced 6" end plates, the unit resists prying and lever attacks while remaining straightforward to install and remove.

How does this lock fit different trailer and container doors?

The lock is adjustable to accommodate a wide range of vertical locking-bar spacing, sliding the smaller tube into the larger to reach the correct width. If you need more reach than the standard range, an extension kit is available separately.

• Adjustable span: fits locking bars spaced from 9 ¾" to 16" apart.
• Two-piece design: 2" and 2½" square tubes nest for secure fit.
• Extension option: extension kit sold separately for wider gaps.

What security features prevent tampering or unauthorized entry?

The lock uses a tamper-resistant tubular pin tumbler barrel lock with a keyed-differently option so no duplicate key code is kept on file. Thick steel construction and 6" perpendicular end plates press flush against door surfaces to resist twisting and leverage attempts.

• Tubular barrel lock mechanism with two keys included.
• 3/16" wall steel tubes and 6" x 3/16" end plates for reinforcement.
• Powder-coated orange finish improves visibility and corrosion resistance.

How simple is it to install and operate on the job?

No tools or mounting hardware are required — separate the two halves, place one on each door's locking bar, and slide them together until snug. To lock, depress the locking button or engage the keyed barrel; remove the key to secure the mechanism when not in use.

• Tool-free installation for fast deployment at stops or job sites.
• Slide-together operation aligns quickly even in low-light conditions.
• Lightweight for its strength at approximately 13 lb., making handling easy.

How durable is the finish and build for outdoor shipping use?

The steel receives a high-visibility powder-coat that helps resist rust and wear in marine or construction environments. Each unit undergoes quality checks to ensure the locking structure performs reliably under repeated use and harsh conditions.

• Powder-coated orange surface for corrosion resistance and visibility.
• Designed to withstand heavy use on over-the-road and on-site containers.
• Robust welds and quality assurance testing before shipping.

Who is this for: Operators of semi-trailers, shipping containers, and on-site storage who need a portable, high-visibility, keyed locking solution that resists forced entry and weathering. It's ideal for truck fleets, construction crews, logistics companies, and anyone storing valuable tools or cargo in containers or trailers who wants a fast, non-permanent security option.