This official Fender American Standard Stratocaster Saddle set has six nickel plated bent sheet steel saddles with the Fender/Fender stamp and modern string spacing. They come complete with intonation screws, height adjustment screws and springs. The bent sheet steel saddle design was originally used on their vintage guitars but with a wider spacing, these have the same design but with their modern narrower spacing so you replace the block style saddles installed on a lot of modern Fender Stratocaster guitars. The height screws have a fine 4-48 imperial thread, not the normal 4-40 imperial thread used on most USA Fender guitars.