PVC Tipped Aluminum Hold Down - 3/8" x 16 1 each 3/8" x 16 PVC tipped aluminum hold down Clamp feature non-marring PVC tips More gripping power when pressure is applied to your stock.Includes star knob and bolt Includes star knob and bolt Available in the two most commonly used sizes of 1/4" x 20 and 3/8 x 16 (EACH SOLD SEPARATELY)