View cart “591-31A Air Inlet Assy.” 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 591-05 Air Ring $5.50 Add to cart 591-20 Needle $19.95 Add to cart 591-02 Air Cap $29.95 Add to cart 591-08 Side Port Control $12.95 Add to cart