They are called Terminal Block Jumpers and you can get them at Molex or Radio Shack online. I could not find them on the Lowes or Home Depot web sites. I think I bought mine and the blocks at Radio Shack. There is a Molex part number 0380021290 for a Beau 8 circuit connector, but it is spec'd at .375" centers. I am not sure whether that is the exact match to Garrett's terminal block. I couldn't find the specs on the Radio Shack model.