Pro-Shot Black Powder Patch Worm. Made with a heavy gauge steel wire screw attached to a brass base. Made for heavy duty use. 10-32 thread. Specifications for Pro-Shot Black Powder Patch Worm: Manufacturer: Pro-Shot Color: Brass Quantity: 1 Package Contents: Pro-Shot Black Powder Patch Worm The Pro-Shot Black Powder Patch Worm is a quality addition to the Pro-Shot lineup. For more great deals on Muzzleloading Supplies by Pro-Shot please browse our Pro-Shot Muzzleloading Supplies page. Pro-Shot Black Powder Patch Worm