View cart “591-08 Side Port Control” 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 591-39 Fluid Connector $9.95 Add to cart 591-23 Replacement Fluid Needle Spring $5.95 Add to cart 591-09 O Ring $4.50 Add to cart 591-41 Packing Screw $2.50 Add to cart