We have a large selection of furnace parts manuals / wire diagrams online.
To help you look up your part number by model number. Click on Furnace Parts Manuals then use Control and F to search your model number. ctrl+F
1 Year Warranty on ALL parts!
Coleman orifice #47. Also known as drill size 0.0785. .
Hex head is 1/2", length is 3/8", threads are 7/16-27 UNS.
Picture is for reference only. Hole size will vary on actual item.