Mua Robbor Grab Hook 3 8 in Bolt on Grab Hook Grade 70 Forged Steel Tow BENTISM Tractor Bolt on Hooks Compact Bolt on Grab Hook 1 4'' Thick D Forged Bolt on Grab Hook Mount with Backer Plate, Grab Hook 5 16in Bolt Titan 5 16 Bolt On Grab Hook Hardware&Tools Online Store. Robbor 5 16 Bolt on Grab Hook with Backer Plate and Complete Hardware for Installation. Robbor Bolt on Grab Hook is Grade 70 rated at 4700 lb. WLL (Working Load Limit). Robbor Bolt on Grab Hook is Welded On a 1 4" Thick Steel Plate. Entire Bolt on Grab Hook Kit is Zinc Chromate Plated for Weather Protection. Every Mount Includes 1 2" x 1 1 2" Grade 8 Bolts with Washers and Nylon Lock Nut.