Coupling bolt pattern Apr 19, 2022 12:18:47 GMT 10 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by dymwood on Apr 19, 2022 12:18:47 GMT 10 I have a Dymwood coupling that needs to be replaced.it has a 5” x 3.5” bolt pattern.Are there any other couplers the same.Structurally difficult to use the modern standard 4 bolt pattern.cheersChris