These wheel lug studs are made of carbon steel and tested to demanding automotive industry standards to ensure strength, longevity and safety. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet 3400: 1955, 1956, 1957, 1958, 1959] - [Chevrolet 3500: 1955, 1956, 1957, 1958, 1959] - [Chevrolet 3600: 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959] - [Chevrolet 3700: 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959] - [Chevrolet C20 Panel: 1967] - [Chevrolet C20 Pickup: 1964, 1965, 1966, 1967, 1968, 1969, 1970] - [Chevrolet C20 Suburban: 1967, 1968, 1969, 1970] - [Chevrolet DR: 1946] - [Chevrolet K20 Panel: 1967] - [Chevrolet K20 Pickup: 1960, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970] - [Chevrolet K20 Suburban: 1967, 1968, 1969, 1970] - [Chevrolet P20 Series: 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967] - [GMC C25/C2500 Pickup: 1967, 1968, 1969, 1970] - [GMC C25/C2500 Suburban: 1968, 1969, 1970] - [GMC K25/K2500 Pickup: 1966, 1967, 1968, 1969, 1970] - [GMC K25/K2500 Suburban: 1967, 1968, 1969, 1970] - [GMC P25/P2500 Van: 1967] - [GMC P252: 1951] - [GMC P253: 1951] - [GMC PB2500 Van: 1966]