Material: Aluminum alloy, type T6, per QQ-A-250/12; Finish: Anodize type 1, per MIL-A-8625; Overall dimensions: 6.969 inches in length x 1.25 inches in width x 0.313 inches in height; Four holes with a diameter of 0.343 inches through countersink 82 degrees to a diameter of 1.5 inches, center-to-center