Centers: 1.5",Length: 1.875",Width: 0.375",Projection: 1.125", Base Dimension: 3/8" x 1/4"Centers: 3",Length: 3.375",Width: 0.375",Projection: 1.125", Base Dimension: 3/8" x 1/4"Centers: 3.5",Length: 3.875",Width: 0.375",Projection: 1.125", Base Dimension: 3/8" x 1/4"Centers: 4",Length: 4.375",Width: 0.375",Projection: 1.125", Base Dimension: 3/8" x 1/4"Centers: 6",Length: 6.375",Width: 0.375",Projection: 1.125", Base Dimension: 3/8" x 1/4"Centers: 8",Length: 8.375",Width: 0.375",Projection: 1.125", Base Dimension: 3/8" x 1/4"Centers: 12",Length: 12.375",Width: 0.375",Projection: 1.125", Base Dimension: 3/8" x 1/4"