PANEL BRACKETS (#241-86150) PRICE: $10.67 Part #: 241-86150 For shipping estimate: Add to cart then visit your shopping cart to see shipping options and costs. PANEL BRACKETSOne piece, heavy-duty, hot dipped galvanized steel. Specifically designed to support keel rollers. Slots accept 7/16" or 1/2" diameter bolts. Roller shaft diameter can be 1/2" or 5/8".Roller Size4"