Check the listing for details. 4mm Amplifier Terminal Screw Square Washer POWER / GROUND / SPEAKER Amp Screws. Condition: New. Listed at 5.89 USD. (1 Piece) Amplifier Terminal Set Screw With Square Washer POWER / GROUND / SPEAKER / REMOTE Brand new set of amplifier replacement terminal screws. These screws work with a Phillips-Head screw driver. Great for amplifiers, terminal blocks, fuse holders, crossovers and many other car audio accessories. These screws fit most common metric terminal style connections. Material: Nickel Color: Silver Thread Diameter： 4mm Thread Height: 7mm Square Washer: 8x8mm Thread: Metric The screw will be sent by regular parcel with no tracking number. This allows me to keep your shipping cost as low as possible. If you would like a tracking number, you can select a different shipping option at checkout. THERE ARE MANY BRANDS COMPATIBLE WITH THIS ITEM. FEEL FREE TO MESSAGE ME ABOUT COMPATIBILITY WITH YOUR PRODUCT. YOU ARE RESPONSIBLE FOR MAKING SURE THIS ITEM FITS WITH YOUR PRODUCT. Item #81