Amazon.com: Prime-Line 9071969 U-Bolts, Round Bend, 5/16 In.-18 X 1-3/8 In. X 2-1/2 In. - for 1 In. Pipe, Zinc Plated Steel (10 Pack) : Industrial & Scientific
Amazon.com: BBC Fasteners - SQ6132CB - 7/8-9 Steel UNA Drive Bolt, Grade 5, Phosphate and Oil Fastener Finish, 3 1/2 inL, 5 PK : Industrial & Scientific