4 inch Crossbar 1/8F with 8/32 ground screw
4" Crossbar, Tap 1/8F with 8/32 ground screw, 4" Crossbar, tapped 1/8F with 8/32 ground screw. Slot size 3/16" X 3 5/8". 16 gauge steel
4" Crossbar, Tap 1/8F with 8/32 ground screw, 4" Crossbar, tapped 1/8F with 8/32 ground screw. Slot size 3/16" X 3 5/8". 16 gauge steel