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100 pcs #10 x 1 inch Self Drilling Hex Washer Head Sheet Metal Screws, 410 Stainless Steel, Black Coated, for HVAC Ductwork & Metal Roofing, Magnetic Bit Included in Kuwait 100 pcs #10 x 1 inch Self Drilling Hex Washer Head Sheet Metal Screws, 410 Stainless Steel, Black Coated, for HVAC Ductwork & Metal Roofing, Magnetic Bit Included in Kuwait 100 pcs #10 x 1 inch Self Drilling Hex Washer Head Sheet Metal Screws, 410 Stainless Steel, Black Coated, for HVAC Ductwork & Metal Roofing, Magnetic Bit Included in Kuwait 100 pcs #10 x 1 inch Self Drilling Hex Washer Head Sheet Metal Screws, 410 Stainless Steel, Black Coated, for HVAC Ductwork & Metal Roofing, Magnetic Bit Included in Kuwait 100 pcs #10 x 1 inch Self Drilling Hex Washer Head Sheet Metal Screws, 410 Stainless Steel, Black Coated, for HVAC Ductwork & Metal Roofing, Magnetic Bit Included in Kuwait 100 pcs #10 x 1 inch Self Drilling Hex Washer Head Sheet Metal Screws, 410 Stainless Steel, Black Coated, for HVAC Ductwork & Metal Roofing, Magnetic Bit Included in Kuwait 100 pcs #10 x 1 inch Self Drilling Hex Washer Head Sheet Metal Screws, 410 Stainless Steel, Black Coated, for HVAC Ductwork & Metal Roofing, Magnetic Bit Included in Kuwait

100 pcs #10 x 1 inch Self Drilling Hex Washer Head Sheet Metal Screws, 410 Stainless Steel, Black Coated, for HVAC Ductwork & Metal Roofing, Magnetic Bit Included

KWD 5
Brand
Glvaner
Category
Fasteners
Weight
356 g
– 1 +

Special Features

  • SPECIFICATIONS: Thread Size #10 UNC (4.8mm coarse); Overall Length 1" (25mm); Drive: 8mm Hex (Included); Flange Diameter: 0.386"-0.413"; Package Quantity 100 pcs; For detailed dimensional drawings of the hex washer head, refer to Image 4
  • 410 STAINLESS STEEL DRILL POINT HARDNESS: Crafted from 410 Stainless Steel and enhanced with a smooth electrocoating, this finish eliminates burrs for a flawless feel while providing an extra layer of protection. It significantly improves resistance to scratches and corrosion compared to untreated surfaces, ensuring a durable and sleek appearance that lasts
  • OPTIMIZED FOR 20‑22 GAUGE SHEET METAL: The most specified diameter for everyday HVAC, electrical, and gutter work. Common uses: duct seam fastening, junction box attachment, gutter spike replacement, metal roofing trim, door frames, and auto body panel patches. Delivers 35% greater tensile strength than #8 while maintaining clean drilling and chip clearance in standard‑duty steel
  • HEX WASHER HEAD ADVANTAGE: The integrated washer flange distributes clamping force across a wider surface area, preventing pull-through on thin materials. 8mm hex drive accepts standard nut drivers and impact-rated bits for high-torque fastening without cam-out. Included magnetic hex bit fits all standard drills and impact drivers for immediate use out of the box.
  • DURABLE BOX PACKAGING & VERIFIED COUNT : Unlike standard bags that tear, our screws come in a sturdy, easy-access box designed for the back of a service truck or a crowded workbench. We implement a triple-check verification system for both quality and quantity in every box, providing professional consistency you can rely on for large-scale projects. Comes complete with a magnetic hex bit for seamless compatibility with your power tools

Description

Professional Grade Self‑Drilling Screws – 410 Stainless Steel with Black E-coated
Designed for metal‑to‑metal fastening from 16 to 26 gauge steel, these hex washer head screws combine a hardened 410 stainless steel drill point with a corrosion‑resistant black finish. The integrated washer flange distributes clamping force evenly, preventing pull‑through on thin materials while providing reliable holding power in structural applications.

Size Selection Guide – Match Screw Diameter to Material Gauge
Choosing the correct diameter is critical for drill point performance and pull‑out strength. Use the chart below to match the screw size to your material thickness and application:

#8 (0.164″): 22‑26 gauge – Light sheet metal, HVAC vent registers, electrical boxes, aluminum trim, server racks
#10 (0.190″): 20‑22 gauge – Ductwork assembly, junction boxes, gutters, metal roofing trim, auto body repair
#12 (0.216″): 18‑20 gauge – Metal stud framing, rooftop equipment, industrial enclosures, trailer panels
#14 (0.242″): 16‑18 gauge – Steel building, machinery guards, truck beds, agricultural equipment, rivet replacement

Refer to Image 4 for detailed dimensional drawings of head diameter, overall length, and drill point geometry.

Material Note
410 stainless steel is heat‑treated to achieve the hardness required for self‑drilling. While it offers good corrosion resistance for indoor and covered outdoor applications, it is not recommended for direct marine exposure or untreated stainless steel roofing (use 304/316 grade for those environments).

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