3/8 thread , These were never used but on display for a short time, like new. Please use zoom on the pictures for the most accurate description. If you have questions please ask. The item “Beer Tap Handle Lot Rare Katana Samuri Sword Sapporo Kirin Ichaban Never Used” is in sale since Saturday, February 17, 2018. This item is in the category “Collectibles\Breweriana, Beer\Tap Handles, Knobs\Other Beer Tap Handles, Knobs”. The seller is “mostlymancave” and is located in Lincolnton, Georgia. This item can be shipped worldwide.