Matl aluminum alloy 2014-t6 per qq-a-200/2 (sm1868-07) or aluminum alloy 6061 or 6062, t6510 temper per qq-a-200/8 (sm1868-22), c/o spacer 1 and corrosion resistant steel helical coil inserts 2; o/a dim. 7.256/7.260 in. L, 1.090/1.110 in. W, 0.458/0.478 in. H