Musiclily Thick Oval Dented Electric Guitar Output Jack Plate Socket, Chrome(Pack of 2) Metal made,this jack uses a 1mm thickness quality jack plate, ticker than the thin one and works for guitar or bass Size: approx. 48*25.5mm 3.5mm diameter screws hole, screws hole center to center is 37mm,9.3mm jack hole diameter. Comes with screws, ready for use Package included: 2pcs output jack