Shepherd threaded stem soft tread caster – 60mm diameter 3/8-16 x 3/4 stem black this caster is ideal for use with electronic equipment, medical equipment, audio/visual equipment and furniture. Soft 70-75/a durometer tread is made of high-tech thermoplastic elastomer. Offers high load ratings with quiet mobility. Rivet axle provides positive wheel retention. Features 100 lb. Capacity. Wheel diameter measures 60 millimeters. Height of caster is 2-5/8 inches. Black finish.