Novice question When drilling a hole to slot a threaded bolt or

slot hole size   Dan slot royal188

They are usually made by drilling or punching a round hole and then cutting or milling it to the desired length Slotted holes can be used for

Hole Dimensions The standard size for a long-slotted hole for a 34 diameter bolt is 1316-inch by 1−78-inch The radius at all corners is 1332-inch A

amazing link apollo slot Slot dimensions are defined by a Structural Code hole EDGE to another along the LONGEST dimension That means Hole Pattern 18 x 34 Round-End Slot, Side Staggered, 18 x 34 Round-End Slot, Side Staggered ; Slot Width 18, 18 ; Slot Length 34, 34 ; Slot End