Round Head Screw B-4.2X9.5 De Dietrich JJJ030008596

The Round Head Screw B-4.2X9.5 is a small but vital fastener for securing various components in your heating equipment. Commonly used in burner assemblies and boiler enclosures, this screw ensures a tight and durable fit. Keep a few on hand for quick replacements during boiler maintenance or repair tasks.