Gorilla Automotive Small Diameter Spline Acorn Lug Nut 7/16"-20 Black Bulk for 135 vehicles
Part # 21178BC
- Heat treated to improve finish and durability
Specifications
| Closed/Open | Closed |
|---|---|
| Color | Black |
| Head Tool Size | 19mm (3/4") & 21mm (13/16") |
| HeatTreated | Yes |
| Hex Size (text) | Small Diameter |
| Key Part Number | 1921SD-KEY |
| Material | Steel |
| NutBolt | Nut |
| Outside Diameter | 20 mm |
| Overall Length | 1.36 in |
| Packaging | Bulk |
| Seat Type | Conical |
| Style | Small Diameter Spline Acorn |
| Thread Diameter | 7/16 in |
| Thread Direction | Clockwise (Right) |
| Thread Pitch | 7/16-20 in |
| UPC / GTIN | 00012619330706 |
| Year | Make | Model | Note |
|---|---|---|---|
| 1973 - 1975 | Buick | Apollo | Aftermarket Matches |
| 1973 - 1979 | Buick | Century | Aftermarket Matches |
| 1965 - 1967 | Buick | Gran Sport | Aftermarket Matches |
| 1970 - 1972 | Buick | GS | Aftermarket Matches |
| 1968 - 1969 | Buick | GS 350 | Aftermarket Matches |
| 1968 - 1969 | Buick | GS 400 | Aftermarket Matches |
| 1970 - 1972 | Buick | GS 455 | Aftermarket Matches |
| 1977 - 1985 | Buick | LeSabre | Aftermarket Matches |
| 1973 - 1981 | Buick | Regal | Aftermarket Matches |
| 1986 - 1987 | Buick | Regal | Aftermarket Matches |
| 1979 - 1981 | Buick | Riviera | Aftermarket Matches |
| 1975 - 1979 | Buick | Skyhawk | Aftermarket Matches |
| 1961 - 1972 | Buick | Skylark | Aftermarket Matches |
| 1975 - 1979 | Buick | Skylark | Aftermarket Matches |
| 1964 - 1969 | Buick | Special | Aftermarket Matches |
| 1964 - 1972 | Buick | Sportwagon | Aftermarket Matches |
| 1979 - 1981 | Cadillac | Eldorado | Aftermarket Matches |
| 1976 - 1984 | Cadillac | Seville | Aftermarket Matches |
| 1950 - 1970 | Chevrolet | Bel Air | Aftermarket Matches |
| 1972 - 1975 | Chevrolet | Bel Air | Aftermarket Matches |
| 1981 | Chevrolet | Bel Air | Aftermarket Matches |
| 1958 - 1970 | Chevrolet | Biscayne | Aftermarket Matches |
| 1972 | Chevrolet | Biscayne | Aftermarket Matches |
| 1969 - 1974 | Chevrolet | Blazer | Aftermarket Matches |
| 1987 - 1991 | Chevrolet | Blazer | Aftermarket Matches |
| 1958 - 1961 | Chevrolet | Brookwood | Aftermarket Matches |
| 1969 - 1972 | Chevrolet | Brookwood | Aftermarket Matches |
| 1960 - 1967 | Chevrolet | C10 Panel | Aftermarket Matches |
| 1960 - 1970 | Chevrolet | C10 Pickup | Aftermarket Matches |
| 1967 - 1972 | Chevrolet | C10 Suburban | Aftermarket Matches |
| 1972 - 1973 | Chevrolet | C20 Suburban | Aftermarket Matches |
| 1985 | Chevrolet | C20 Suburban | Aftermarket Matches |
| 1967 - 1981 | Chevrolet | Camaro | Aftermarket Matches |
| 1966 - 1970 | Chevrolet | Caprice | Aftermarket Matches |
| 1977 - 1988 | Chevrolet | Caprice | Aftermarket Matches |
| 1964 - 1973 | Chevrolet | Chevelle | Aftermarket Matches |
| 1962 - 1968 | Chevrolet | Chevy II | Aftermarket Matches |
| 1960 - 1967 | Chevrolet | Corvair | Aftermarket Matches |
| 1969 | Chevrolet | Corvair | Aftermarket Matches |
| 1953 - 1982 | Chevrolet | Corvette | Aftermarket Matches |
| 1957 - 1958 | Chevrolet | Del Ray | Aftermarket Matches |
| 1959 - 1960 | Chevrolet | El Camino | Aftermarket Matches |
| 1964 - 1981 | Chevrolet | El Camino | Aftermarket Matches |
| 1969 - 1970 | Chevrolet | Estate | Aftermarket Matches |
| 1941 - 1942 | Chevrolet | Fleetline | Aftermarket Matches |
| 1946 - 1952 | Chevrolet | Fleetline | Aftermarket Matches |
| 1941 - 1942 | Chevrolet | Fleetmaster | Aftermarket Matches |
| 1946 - 1948 | Chevrolet | Fleetmaster | Aftermarket Matches |
| 1975 | Chevrolet | G10 | Aftermarket Matches |
| 1964 - 1974 | Chevrolet | G10 Van | Aftermarket Matches |
| 1968 - 1970 | Chevrolet | G20 Van | Aftermarket Matches |
| 1958 - 1970 | Chevrolet | Impala | Aftermarket Matches |
| 1977 - 1985 | Chevrolet | Impala | Aftermarket Matches |
| 1939 | Chevrolet | JA Master Deluxe | Aftermarket Matches |
| 1975 - 1986 | Chevrolet | K10 | Aftermarket Matches |
| 1960 - 1972 | Chevrolet | K10 Pickup | Aftermarket Matches |
| 1967 - 1986 | Chevrolet | K10 Suburban | Aftermarket Matches |
| 1980 - 1986 | Chevrolet | K20 | Aftermarket Matches |
| 1972 | Chevrolet | K20 Suburban | Aftermarket Matches |
| 1980 - 1986 | Chevrolet | K20 Suburban | Aftermarket Matches |
| 1975 - 1986 | Chevrolet | K5 Blazer | Aftermarket Matches |
| 1959 - 1961 | Chevrolet | Kingswood | Aftermarket Matches |
| 1969 - 1972 | Chevrolet | Kingswood | Aftermarket Matches |
| 1975 | Chevrolet | Malibu | Aftermarket Matches |
| 1978 - 1981 | Chevrolet | Malibu | Aftermarket Matches |
| 1934 | Chevrolet | Master | Aftermarket Matches |
| 1937 - 1938 | Chevrolet | Master | Aftermarket Matches |
| 1939 - 1940 | Chevrolet | Master 85 | Aftermarket Matches |
| 1970 - 1981 | Chevrolet | Monte Carlo | Aftermarket Matches |
| 1975 - 1979 | Chevrolet | Monza | Aftermarket Matches |
| 1958 - 1961 | Chevrolet | Nomad | Aftermarket Matches |
| 1969 - 1979 | Chevrolet | Nova | Aftermarket Matches |
| 1953 - 1957 | Chevrolet | One-Fifty Series | Aftermarket Matches |
| 1960 - 1962 | Chevrolet | P10 Series | Aftermarket Matches |
| 1964 - 1967 | Chevrolet | P10 Series | Aftermarket Matches |
| 1967 - 1971 | Chevrolet | P10 Van | Aftermarket Matches |
| 1959 - 1961 | Chevrolet | Parkwood | Aftermarket Matches |
| 1960 | Chevrolet | Sedan Delivery | Aftermarket Matches |
| 1940 - 1942 | Chevrolet | Special Deluxe | Aftermarket Matches |
| 1934 - 1936 | Chevrolet | Standard | Aftermarket Matches |
| 1949 - 1952 | Chevrolet | Styleline Deluxe | Aftermarket Matches |
| 1949 - 1952 | Chevrolet | Styleline Special | Aftermarket Matches |
| 1946 - 1948 | Chevrolet | Stylemaster Series | Aftermarket Matches |
| 1960 - 1966 | Chevrolet | Suburban | Aftermarket Matches |
| 1969 - 1972 | Chevrolet | Townsman | Aftermarket Matches |
| 1942 - 1958 | Chevrolet | Truck | Aftermarket Matches |
| 1960 | Chevrolet | Truck | Aftermarket Matches |
| 1953 - 1957 | Chevrolet | Two-Ten Series | Aftermarket Matches |
| 1987 | Chevrolet | V10 | Aftermarket Matches |
| 1987 | Chevrolet | V10 Suburban | Aftermarket Matches |
| 1991 | Chevrolet | V1500 Suburban | Aftermarket Matches |
| 1987 | Chevrolet | V20 | Aftermarket Matches |
| 1987 | Chevrolet | V20 Suburban | Aftermarket Matches |
| 1971 - 1977 | Chevrolet | Vega | Aftermarket Matches |
| 1958 | Chevrolet | Yeoman | Aftermarket Matches |
| 1964 - 1966 | Ford | F-250 | Aftermarket Matches |
| 1964 - 1965 | GMC | 1000 Series | Aftermarket Matches |
| 1970 - 1972 | GMC | C15/C1500 Pickup | Aftermarket Matches |
| 1967 - 1972 | GMC | C25/C2500 Pickup | Aftermarket Matches |
| 1978 - 1981 | GMC | Caballero | Aftermarket Matches |
| 1987 | GMC | Caballero | Aftermarket Matches |
| 1965 - 1966 | GMC | G1000 Series | Aftermarket Matches |
| 1975 | GMC | G15 | Aftermarket Matches |
| 1964 - 1966 | GMC | G1500 | Aftermarket Matches |
| 1987 - 1991 | GMC | G1500 | Aftermarket Matches |
| 1967 - 1974 | GMC | G15/G1500 Van | Aftermarket Matches |
| 1965 - 1966 | GMC | I1000 | Aftermarket Matches |
| 1975 - 1978 | GMC | K15 | Aftermarket Matches |
| 1979 - 1986 | GMC | K1500 | Aftermarket Matches |
| 1979 - 1986 | GMC | K1500 Suburban | Aftermarket Matches |
| 1971 - 1974 | GMC | K15/K1500 Pickup | Aftermarket Matches |
| 1975 - 1978 | GMC | K15 Suburban | Aftermarket Matches |
| 1980 - 1986 | GMC | K2500 | Aftermarket Matches |
| 1980 - 1986 | GMC | K2500 Suburban | Aftermarket Matches |
| 1965 - 1966 | GMC | PB1000 Series | Aftermarket Matches |
| 1971 - 1977 | GMC | Sprint | Aftermarket Matches |
| 1965 - 1966 | GMC | Suburban | Aftermarket Matches |
| 1945 - 1960 | GMC | Truck | Aftermarket Matches |
| 1987 | GMC | V1500 | Aftermarket Matches |
| 1987 - 1991 | GMC | V1500 Suburban | Aftermarket Matches |
| 1987 | GMC | V2500 | Aftermarket Matches |
| 1987 - 1991 | GMC | V2500 Suburban | Aftermarket Matches |
| 1974 - 1979 | Jeep | Cherokee | Aftermarket Matches |
| 1984 - 1991 | Jeep | Grand Wagoneer | Aftermarket Matches |
| 1993 | Jeep | Grand Wagoneer | Aftermarket Matches |
| 1974 - 1984 | Jeep | J10 | Aftermarket Matches |
| 1980 - 1984 | Jeep | J20 | Aftermarket Matches |
| 1974 - 1984 | Jeep | Wagoneer | Aftermarket Matches |
| 1967 - 1974 | Jensen | Interceptor | Aftermarket Matches |
| 1964 - 1971 | Oldsmobile | 442 | Aftermarket Matches |
| 1961 - 1981 | Oldsmobile | Cutlass | Aftermarket Matches |
| 1985 | Oldsmobile | Cutlass | Aftermarket Matches |
| 1987 - 1988 | Oldsmobile | Cutlass | Aftermarket Matches |
| 1980 - 1981 | Oldsmobile | Cutlass Cruiser | Aftermarket Matches |
| 1987 - 1989 | Oldsmobile | Cutlass Cruiser | Aftermarket Matches |
| 1980 | Oldsmobile | Cutlass Salon | Aftermarket Matches |
| 1967 - 1970 | Oldsmobile | Cutlass Supreme | Aftermarket Matches |
| 1980 - 1981 | Oldsmobile | Cutlass Supreme | Aftermarket Matches |
| 1987 - 1988 | Oldsmobile | Cutlass Supreme | Aftermarket Matches |
| 1965 - 1966 | Oldsmobile | Dynamic 88 | Aftermarket Matches |
| 1961 - 1970 | Oldsmobile | F85 | Aftermarket Matches |
| 1962 - 1963 | Oldsmobile | Jetfire | Aftermarket Matches |
| 1964 - 1966 | Oldsmobile | Jetstar 88 | Aftermarket Matches |
| 1965 | Oldsmobile | Starfire | Aftermarket Matches |
| 1979 - 1981 | Oldsmobile | Toronado | Aftermarket Matches |
| 1964 - 1970 | Oldsmobile | Vista Cruiser | Aftermarket Matches |
| 1965 - 1971 | Pontiac | Acadian | Aftermarket Matches |
| 1965 - 1969 | Pontiac | Beaumont | Aftermarket Matches |
| 1980 - 1981 | Pontiac | Bonneville | Aftermarket Matches |
| 1987 | Pontiac | Bonneville | Aftermarket Matches |
| 1980 - 1981 | Pontiac | Catalina | Aftermarket Matches |
| 1967 - 1980 | Pontiac | Firebird | Aftermarket Matches |
| 1980 | Pontiac | Grand Am | Aftermarket Matches |
| 1980 - 1983 | Pontiac | Grand LeMans | Aftermarket Matches |
| 1969 - 1972 | Pontiac | Grand Prix | Aftermarket Matches |
| 1977 - 1981 | Pontiac | Grand Prix | Aftermarket Matches |
| 1964 - 1973 | Pontiac | GTO | Aftermarket Matches |
| 1965 - 1972 | Pontiac | Laurentian | Aftermarket Matches |
| 1980 - 1981 | Pontiac | Laurentian | Aftermarket Matches |
| 1963 - 1981 | Pontiac | LeMans | Aftermarket Matches |
| 1965 - 1972 | Pontiac | Parisienne | Aftermarket Matches |
| 1980 - 1986 | Pontiac | Parisienne | Aftermarket Matches |
| 1980 - 1981 | Pontiac | Phoenix | Aftermarket Matches |
| 1965 - 1966 | Pontiac | Star Chief | Aftermarket Matches |
| 1965 - 1970 | Pontiac | Strato-Chief | Aftermarket Matches |
| 1965 - 1970 | Pontiac | Tempest | Aftermarket Matches |
| 1960 - 1961 | Pontiac | Ventura | Aftermarket Matches |