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1/2-20 x 1.750 12pt Bolt Kit (5) Black Oxide 1/2-20 x 1.750 12pt Bolt Kit (5) Black Oxide:1/2-20 x 1.750 12pt Bolt Kit (5) Black Oxide Main Bolt Kit - HighBolt 1 2 20 in Thread 1. 75 in Long 9 16 in 12 Point Head Chromoly Black Oxide Universal Set of 5