333
Desmond brand. Stainless Steel for superior strength. Extra wide for Stability. Use to convert a 1/4"-20 threaded post to a 3/8"-16 or to convert a 3/8"-16 thread socket to a 1/4"-20. Female 1/4" male 3/8." Base is 4mm in height. Diameter: 50mm (2"). weight: 63g (2.2oz). Includes Rubber Washer.