About Us

Derwent Trading International LTD, based in West Midlands, our company deals in security products especially for Agricultural machinery and construction plant.

Our main product at present is BLOCKSTEM a very strong immobilizing  lock. It is made of C4 hard an steel designed to prevent any movement of the steering ram. It is THATCHAM accredited and it is accepted by leading insurancers and underwriters for insurance discount.

Derwent Lock & Security are sole UK ditributors for Blockstem, Starcom Systems & Equipment lock. Please contact us for more information