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The Mars 79889 self drill screw is made of steel with a zinc chromate finish. It features a No 10 diameter and a length of one half inch. The head is a 5/16 inch hexagonal washer style for secure installation. This screw is ideal for HVAC and sheet metal applications.
Use this screw for various installation tasks in HVAC systems and sheet metal work.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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