4 Inch Glass Filled Nylon Swivel Caster Set with Ball Bearing and Swivel Lock (Set of 4)

Features

• Top plate measures at 4" x 4-1/2" with a bolt hole pattern of 2-5/8" x 3-5/8" to 3" x 3" and can either be bolted or welded on.
• Brake options include a top lock brake (TLB), a total lock brake (TTL), or a side lock brake (SLB). The top lock brake (TLB) places a positive locking force against the wheel tread locking the wheel only. The side lock brake (SLB) places a positive locking force against the wheel hub locking the wheel only. The total lock brake (TTL) places a positive locking force against the wheel tread and the swivel simultaneously locking the wheel and the swivel for a complete stationary position.