View cart “591-05 Air Ring” has been added to your cart. 591-06 Lock Screw$12.50 591-06 Lock Screw quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Lock Screw Related products 591-41 Packing Screw $2.50 Add to cart 591-40 Packing $3.50 Add to cart 591-03 Fluid Nozzle $29.95 Add to cart 591-14A Air Bushing Assy. $36.95 Add to cart