Can you tell me what size screws are in part# AP3020386?
Answer Hello Rocco. The manufacture does not specify the screw 279393 sizes. Sorry.
How can you guarantee quality and fit? If you can't tell us what size these screws are in the first place...
Answer Hi Chris. Thank you for the question. We sell these daily and have had absolutely no returns about the screws of the terminal block. They are a special thread pitch screw that isn't common. The total quality of the manufacturer's replacement standards meet or / exceed the required OSHA Standards along with Underwriters Laboratory Standards. We have a solid return/exchange policy if there are any discrepancies and are very pleased to have your business. The terminal block assy. is part # 279393. The manufacture does not supply us with measurements. Thank you.