This kit includes nuts and threaded hollow screw bolts, with the nuts specifically designed to secure hollow screw bolts the in place. It is widely used in lamp lighting, electrical accessories, machinery manufacturing, DIY handmade ornaments, etc., for socket expansion, and fixing ceiling chandeliers or other lamps.

Specification
Material: Carbon Steel
Surface Treatment: White Zinc Plating
Thread Size: M10
Thread Pitch: 1mm
Hollow Screw Bolts Size: 7mm x 30mm / 0.28"x1.18"(Inner Dia*Length)
Nut Size: 4mm x 14mm / 0.16"x0.55"(Height*Hex Width)
Thread Length: 27mm / 1.06 inch
Packing List: 10 Set, (Each Set Including 1 x hollow screw bolt, 1 x nut)

Advantage
This hollow screw bolt is made of carbon steel and has a surface treated with galvanization, a refining process, uniform pitch, anti-corrosion, and rust-proof. It can work in wet environments, providing good durability and stability.
The fine thread design is firm and not easy to loosen. It is easier to screw in or out during installation, which improves installation efficiency and reduces installation difficulty.
The hollow screw bolt is sized to fit standard lamp sockets, necks, and hardware.

Instruction
The center through-hole design, allows wires easy to pass through and screws the lamp into lamp sockets and necks easily, making the lamp pole easily suitable for various lamp parts, or used to extend the socket.

NOTE: Please confirm the thread size before purchasing.