Size 12 By 3 Inch Hardened 410 Stainless Steel Self Drilling Screws Heavy Duty Slick Threading Superior Grip For Quick Sheet Metal Fastening 120 Piece Bulk Pack Built Tough For Any Construction Gig

120 Pack 410 Stainless Self Drilling Screws #12 X 3 Inch
✔️ Hex washer head 410 stainless 3 inch 75mm drill tap fasten

You get a 120-piece bulk pack of hardened 410 stainless steel 3 inch 75mm screws that make quick work of thick metal projects. These hex washer head fasteners drill holes and tap threads in one pass, saving steps on metal roofing, HVAC ductwork, and steel framing. The slick threading bites deep for a superior grip that holds tight through vibration and weather.

✅ Drills, taps, and fastens in one pass to speed up your installation workflow.
✅ Hex washer head design gives a wide bearing surface for better load distribution and secure clamping.
✅ #12 diameter shaft pairs with 3 inch (75mm) length to handle heavy-duty metal-to-metal connections.
✅ 410 stainless steel material resists corrosion better than carbon steel for lasting outdoor durability.

💡 Why choose hex washer head self drilling screws for structural metal fastening?

Self drilling screws cut threads and bore metal at once when you torque them with a socket nut drive.- The external hex shape grips tools solidly so you can apply steady pressure without stripping the drive.- A built-in washer locks flat against the sheet to seal gaps and spread clamping force over a wider area.- 410 stainless alloy delivers handy corrosion proof strength for roofs, siding, and ductwork that face moisture.

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