Billet Line Clamps From Racing Power Company #RPC R6086 1/4" Billet Single Line Clamps. 4 Pack / Pack Quantity:   Only  $9.95    #RPC R6085 3/16" Billet Single Line Clamps. 4 Pack / Pack Quantity:   Only  $9.95    #RPC R6088 3/8" Billet Single Line Clamps. 4 Pack / Pack Quantity:   Only  $9.95    #RPC R6087 5/16" Billet Single Line Clamps. 4 Pack / Pack Quantity:   Only  $9.95