ChubbyChunk M4/M5/M6 Jack Nuts Petal Nuts Expansion Nuts Thinning Fixing Pins with Screws Assemblies for Hollow Wall Iron Wires for Thin Soft Wall 45PCS

【WHAT YOU WILL GET】You will receive 45pcs Jack Nuts with screw, enough for your home improvement needs. They are designed as petal or lantern shapes, nice fasteners, suitable to undertake various engineering projects. 【3 SIZES TO CHOOSE】There are 3 Jack nut with different hole diameters for you to choose, they are about 8mm/0.31inch, 10mm/0.39inch, 12mm/0.47inch. Their corresponding screw sizes are about 25 x 4mm/0.98 x 0.16inch(length x thread diameter), 25 x 5mm/0.98 x 0.2inch(length x thread diameter), 25 x 6mm/0.98 x 0.24inch(length x thread diameter) . 【STURDY MATERIAL】Jack nuts are made of carbon steel material, featuring high strength and high toughness, wear-resistant, heavy-duty, sturdy and durable, not easy to break. They feature strength and grip, ensuring a secure hold. 【WIDE APPLICATION】These expansion nuts are suitable for plates with a thickness of about 0.2-5mm/0.01-0.2inch. They are suitable for anchoring on metal plates, sliding aluminum alloy doors and windows, stripping anti-theft door locks, and installing iron-clad houses. 【EASY TO USE】Drill a hole with a recommended diameter of 2. Tap the anchor into the hole until it is flush with the substrate surface. Attach the setting tool to the head of the screw. Squeeze the to expand the anchor (small size can be set with a screwdriver). Remove the screw and place it through the fixture then back into the anchor. Tighten the screw until the fixture is fixed.