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 3D: 1959] - [Chevrolet 3E: 1959] - [Chevrolet C20 Panel: 1967] - [Chevrolet C20 Pickup: 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970] - [Chevrolet C20 Suburban: 1967, 1968, 1969, 1970] - [Chevrolet DR: 1946] - [Chevrolet K20 Pickup: 1960, 1961, 1962] - [Chevrolet P20 Series: 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967] - [Chevrolet P20 Van: 1968, 1969, 1970] - [Chevrolet Truck: 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959] - [GMC 150: 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959] - [GMC 250: 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959] - [GMC C25/C2500 Pickup: 1967, 1968, 1969, 1970] - [GMC C25/C2500 Suburban: 1968, 1969, 1970] - [GMC P25/P2500 Van: 1967, 1968, 1969, 1970] - [GMC P252: 1951] - [GMC P253: 1951] - [GMC PB25 Series: 1966] - [GMC PB2500 Series: 1963, 1964, 1965] - [GMC PB2500 Van: 1966] - [GMC PM250: 1955, 1956, 1957, 1958, 1959] - [GMC PM250-24: 1954] - [GMC PM251: 1956, 1957, 1958, 1959] - [GMC PM252: 1952, 1953, 1954, 1955, 1958] - [GMC PM253: 1952, 1953, 1954, 1955, 1958] - [GMC Truck: 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959].