41310 Size: 6" x 9" Features: -U-Bolt.-Material: Zinc.-With nuts and straps. Dimensions: -3" x 4.75" Dimensions: 3" H x 4.75" W x 3.5" D (0.31"-18" Thread size / 1.5" Thread length).-3" x 6.25" Dimensions: 3" H x 6.25" W x 3.63" D (0.38"-16" Thread size / 1.5" Thread length).-4" x 6.25" Dimensions: 4" H x 6.25" W x 3.63" D (0.38"-16" Thread size / 2" Thread length).-5" x 8.75" Dimensions: 5" H x 8.75" W x 3.88" D (0.38"-16" Thread size / 3" Thread length).-6" x 9" Dimensions: 6" H x 9" W x 3.5" D (0.38"-16" Thread size / 3.5" Thread length).-6" x 9.25" Dimensions: 6" H x 9.25" W x 4.13" D (0.38"-16" Thread size / 3.5" Thread length).