Fender '51 P Bass bridge saddle height adjustment screws, nickel plated steel. 6-32 x 7/16 Hex. Brand New. Genuine Fender 0040800049. UPC 717669070755. Package contains twelve (6-32 x 7/16") nickel-plated hex set screws. Used for saddle height adjustment on American Special (US) and Standard Series (Mexico) basses.