View cart “591-42 Retaining 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 591-44 Stud $3.50 Add to cart 591-01-1 Air Cap Clip $2.95 Add to cart 591-32 Air Connector $9.95 Add to cart 591-42 Retaining Ring $3.50 Add to cart