Product specification
Product colour: colour zinc plating
Product material: carbon steel, high strength, good hardness, durable, not easy to deform, wear-resistant, anti-rust. Surface treatment: colour zinc plating.
Expansion tube specification: 12x30mm
Screw specification: M4x30mm
(Please refer to the product size on the picture for specific size)
Product features: easy to use and install, no drilling, clean and hygienic, easy to carry.
Product design: When you tighten the screw, the anchor bar will expand to increase its clamping force, and the serrated design on both sides makes the metal anchor bar provide greater grip.
Wide applications of products: deep thread design can firmly connect concrete, gypsum board, insulation board, hollow bricks, etc. It is suitable for hanging or fixing photo frames, wall lamps, curtains, TVs, chalkboards, wall cabinets and so on.

Note: Please make sure the size of the product in the picture and the specification of the product in the description before purchasing to make sure you get what you need, thank you!

Package includes: 50pcs 12x30 expansion tubes and 50pcs M4x30 screws