J.W. Winco, Inc.'s metric threaded tube inserts serve as end plugs in tubing, enabling them to be fitted with threaded leveling feet. The aluminum inserts are designed to bridge an internal diameter tolerance of [+ or -] 0.5 mm on both round and square tubing.

A selection of inch- and metric-sized adjustable levers, cabinet U-handles, plastic and steel hinges and locking mechanisms are available from the company. Also offered are revolving and retractable handles; handwheels; hand cranks; conveyor components; leveling mounts; hand knobs; spring, ball and indexing plunger; jig, fixture and fastening components; toggle clamps; and more.