Material Carbon Steel, Plastic
Exterior decoration Zinc
Manufacturer Grade 4
Head style Flat
Fastener type Anchor Bolt
Size - Total Length: 20mm / 0.79"; Rod Dia.:4mm / 0.16"; Carbon Steel Screw Size: 3mm x 25mm / 0.12" x 0.98"(D*L); Package Content: 50pcs(+/-2%) x Plastic Expansion Tubes
Material - Made of plastic, injection , flexible, good toughness, impact resistance, not easy to break, high expansion coefficient.
Design - Good elasticity and high tension. The protruding edge can prevent the expansion screw from entering the deep part of the hole due to over-deep making.
Advantage - Good anchoring force, large anchorage range, can be used to fix brackets, handrails, shelves, frames, cabinets, mirror frames, coat and hat frames, skirting boards, curtain guide rail, and home decoration etc.
Application - Can be commonly applied to solid brick, concrete, aerated concrete, high-hole brick, gypsum board, sand brick and other wall materials.