Appliance & HVAC sheet-metal screws
Sizes
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- #8 x 1/2" hex-head self-drilling — ductwork, furnace panels, appliance backs
- #10 x 1/2–3/4" hex-head — heavier ducting and outdoor units
- M4 / M5 machine screws — control panels and internal brackets on imported appliances
What it fits
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Common mistakes
Hex-head sheet-metal screws ("zip screws") drive with a 1/4" nut driver. Reusing the same hole in thin sheet metal spins free — move over, or step up to #10.
Self-drilling versions skip the pilot hole in 26–20 gauge sheet.
Buy appliance & hvac sheet-metal screws
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- hex head sheet metal screws 1/4 inch driverAmazon results for this exact search
- self drilling duct screws #8Amazon results for this exact search
- appliance screw assortmentAmazon results for this exact search
- Buy on AmazonKits and single sizes, with reviews naming real devices
- Buy on eBayOEM screw sets and repair-parts sellers