Aleric Rubber End Caps - 60pcs Flexible Screw Thread Protector Covers Rubber Bolt Covers Caps for Metal Tube Rod in 6 Sizes 2mm,3mm,6.5mm,8mm,10mm,12mm is a Fasteners option for everyday use, business supply needs, resale shelves, or household stocking. Review product size, pack count, and shipping details before checkout.