A petal nut, sometimes referred to as a bloom nut or star nut, is a type of nut with internal grooves in the shape of petals. These grooves allow the use of specific tools (such as a plum wrench) to install or remove the nut without the need for a traditional wrench or socket. The design of the petal nut provides additional friction and helps prevent loosening. A lantern spigot is a type of spigot with a lantern shaped head that is typically used to join thin materials such as sheet metal or leather. When a lantern spigot is pulled through a hole at one end, its head unfolds to form a lantern-like shape that is held in place. These spigots are also known as expanding spigots or lantern head spigots.

Carbon Steel: Typically used for general applications. Stainless Steel: For environments where corrosion resistance is required. Alloy Steels: Used in applications requiring high strength or high temperature resistance.

Advantage:

Provides extra friction to help prevent loosening. Allows for quick installation and removal, increasing work efficiency. Unique design makes it suitable for specific installation tools. Ideal for joining thin materials, providing a firm hold. Head design provides good load distribution and reduces material deformation. Provides good concealment after installation and maintains a neat appearance.

Scope of Application

Sheet Metal Joining: For joining or fixing sheet metal, e.g. in the manufacture of metal furniture, shelves or metal artworks. Leather goods: For joining or fixing leather parts, e.g. when making leather bags, shoes or other leather crafts. Decorative use: Due to their unique head shape, they are sometimes used for decorative fixings. Bicycles and motorcycles: for the fixation of frames, forks and rims. Fitness equipment: in high-strength applications where there is a need to prevent loosening. Mechanical assemblies: In mechanical equipment, for fixing components to prevent loosening due to vibration.