Product Information: Fit Cragar SST, Weld Racing (such as Prostar, Draglite and Rodlite), Center Line wheels. Fit on GM 14x1.5 studs such as on Silverado, Suburban, Yukon, Avalache, etc. Technical Specification: Style- Cragar SST Mag Lug Nut Washer- Cragar Center Washer Finish- Chrome finish Hex Size- 7/8 Hex Shank Length- 1.38 (35mm) Shank Diamter- 0.68 (17.3mm) Overall Length- 2.26 (57mm)