10 Pack M6 X 100mm Barrel Bolt Nuts Cross Dowel Set for Furniture Cots Beds Chair Crib Spare Connector Parts: Amazon.com: Industrial & Scientific
M6 x 10mm Cross Dowel Slotted Metal Barrel Nuts 20PCS for Furniture Bed Chair | eBay
Amazon.com: The Bed Slats Company M6 x 14mm Cross Dowels Barrel Nuts with 130mm Furniture Connecting Bolts for Bunk Beds Cots - Set of 8 : Home & Kitchen
M6 x 10mm Cross Dowel Slotted Metal Barrel Nuts (30-pack) - Walmart.com