Grade 10, Black Finish Open-end OEM Style Flange flat face Lug Nuts. M14x2 Thread ｜ 0.90"Long ｜ 13/16" 21mm Hex Hex ｜ Flange Seat. Fits for 2000-2003 Ford F-150; 2001-2004 F-250; 1999-2002 F-350 Super Duty; 1999-2004 F-350; 1999-2002 F-450 F-550 Super Duty & F53.
Lug Nut Specification: Height: 1.38"(35mm), Wide: 0.78"(20mm), Conical 60 Degree Tapered, Hex: 0.67"(17mm), Black, 16 PCS+1 PC 6 Spline Socket. Corrosion Resistance: Lug nuts Cold-forged from 10.9 Grade SCM heat treated steel, certified to 72hr ASTM B117 salt spray standard.
Function: The function of steel stud nut is to firmly fix the wheel on the car, effectively prevent the friction between the wheel hub and the lug bolt, ensure that the wheels do not loosen or fall off during driving, tby providing you with a smoother driving operation, enhancing travel safety.