mankk 40PCS Expansion Screw and Petal Nut Kit M4 M5 M6 Jack Car Metal Screw Petal Shape Metal Nut Anchor Screw for Hollow Wall Iron Skin Plasterboard M-175-40PCS

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About this item

• Jack Nut Threaded Insert Petal Nuts is a fastener specially designed for fixing thin plates. Its unique petal-like structure will automatically expand when stressed, thus providing a firm fixing effect, which is widely used in thin plates, hollow pipes and other scenes.
• 【Reliable Material】The expansion screw & petal nuts are made of high-quality carbon steel, the surface is galvanized, which has the effects of rust prevention and corrosion prevention, especially in wet or acidic environment. The galvanized layer is malleable, and can be processed by cold stamping and bending without damaging the coating, and can be used for a long time indoors and outdoors.
• 【Easy Installation】The petal-shaped design structure is adopted. When in use, only one pliers (such as elbow pliers) is needed to clamp the bottom of the nut, so that the sleeve part of the nut begins to expand like a petal, and then the screw is tightened, and the nut will further expand and finally be firmly fixed on the thin plate.
• 【Wide Application】Petal Nuts Set is widely used in automobile license plate fixing, steel structure shell plate connection, plastic chassis assembly and so on. It is especially suitable for fixing objects on thin iron plates, square pipes and other materials.
• 【Package include】M4*20,M4*25,M5*25,M6*25, 4 sizes,10 in each size, a total of 40pcs.Put it in a transparent storage box for easy carrying and taking.