PATIKIL M12x20mm Hollow Screw Bolts – 30-Piece Round Head Through Hole Bolt Set With Hex Nuts

About This Product

These hollow bolts are a specialty item, but if you need them, you know it.

They're M12 x 20mm with a hollow center – the hole runs all the way through the bolt so you can pass electrical wires or small cables straight through the center.
That makes them perfect for hanging ceiling chandeliers, pendant lights, or any fixture where the wiring needs to go through the mounting hardware.
Each set gives you 15 bolts and 15 matching hex nuts – 30 pieces total.

Made from carbon steel with a galvanized finish, they resist rust and corrosion and stay clean-looking over time.
The bolt head is round with a polished side, so it sits flush and looks neat when installed.

Inside diameter of the hollow section is about 8.
5mm – enough for most standard lamp cords or small gauge wires.

Just screw the bolt into a threaded fitting or wood insert, pass your wire through, and tighten the nut on the back.

Super handy for electrical accessories, machinery assembly, or even DIY crafts.

Check your size carefully before ordering – M12 is substantial, so these aren't for tiny little fixtures.
Solid, clean, and purpose-built for wire pass-through applications.