View cart “591-05 Air Ring” has been added to your cart. 591-41 Packing Screw$2.50 591-41 Packing Screw quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Packing Screw Related products 591-08 Side Port Control $12.95 Add to cart 591-24A Replacement Needle Bushing Assembly $29.95 Add to cart 591-31A Air Inlet Assy. $9.95 Add to cart 591-32 Air Connector $9.95 Add to cart