Hello. The clip is from knifekits.com. It comes as a 3 hole clip. I grind one hole off as seen here. The holes are meant for larger screws so A bit of machining is involved with both screw head and clip so it wont move. It's just countersunk and the screwhead sanded smaller to lock it in place. You can do that or simply make a small washer to fit the hole. Its aluminum so cranking down on the screw is a test in patience. Sometimes it strips. If it does, a simple peening on the backside will remedy that. If you need any help, feel free to ask either here or via PM and I will do my best to help. I'd link the clip here but dont think I can do a hotlink. Knifekits and lookup pocketclips. The pivots are 1/8 and the screw 2-56. Good luck!