Harley Davidson Original OEM Set of (2) Horn Mounting Bolts.NOS.Part # 4856-42M.Fits 1942 WLA Models.The Bolts measure .705" Long.(Harley made a longer bolt also).I believe this bolt set will work on 1942-46 Big Twin Models,but please check your book and bolt length.And as always,Please look at all pics and read description so you know and understand if these are correct for your year and model,(see all pics and read).(Harley Bag And Tag Not Included).Thanks for looking.