RJ-576200-1 - RockNut Bung (1 1/4 in. RH Thread) SKU RJ-576200-1 $79.00 Quantity discounts available QuantityPrice Quantity -+ Add to Cart Details This RockNut steel bung features 1 1/4 in.-12 RH threads and is designed for use with a 1 3/4 in. x .188 in. wall tube. Details Back DetailsThis RockNut steel bung features 1 1/4 in.-12 RH threads and is designed for use with a 1 3/4 in. x .188 in. wall tube.