Hot Sale Pre Bulbed Flat Head Cross Insert Rivet Nuts

What is Pre-bulbed Nut?

A pre-bulbed nut is a type of fastener that is designed with a bulged or enlarged portion on one end. The bulbed portion typically has a larger diameter compared to the rest of the nut. This design feature allows the nut to securely grip into a pre-drilled or punched hole in a material, providing a strong and reliable connection.

The application of pre-bulbed nuts is commonly found in industries such as automotive, aerospace, construction, and general engineering. They are used to create threaded connections in thin or soft materials where traditional nuts may not be suitable. The bulbed portion of the nut provides a larger bearing surface, distributing the load and reducing the risk of damage to the material.

Pre-bulbed nuts are often used in conjunction with sheet metal, plastic, or fiberglass, where they provide a solid fastening solution. They can be used to join panels, brackets, ductwork, or other components where a threaded connection is required. By using pre-bulbed nuts, manufacturers can simplify assembly processes, achieve higher levels of structural integrity, and improve overall product performance.

Material Used For Pre-bulbed Nut

Jack nuts are generally made from various materials to suit different applications. Some common materials used for jack nuts include:

• Steel: Steel jack nuts are widely used due to their high strength and durability. They are suitable for applications where a strong threaded connection is required.
• Brass: Brass jack nuts are popular for their corrosion resistance and electrical conductivity. They are often used in electrical and electronic equipment, as well as in marine environments.
• Stainless Steel: Stainless steel jack nuts offer excellent corrosion resistance and are suitable for applications where exposure to moisture or chemicals is expected. They are commonly used in outdoor or corrosive environments.
• Aluminum: Aluminum jack nuts are lightweight and have good corrosion resistance. They are often used in aerospace, automotive, and lightweight construction applications.

Advantages of Pre-bulbed Nut

• Wide Grip range for variable thickness materials
• Wide grip range for part consolidation
• Soft installation forces to avoid fracturing in soft or brittle materials
• Available in steel, aluminum and stainless

Assembly Applications

• Assemble two materials together
• Allows for blind installation,installs in seconds
• Environmentally friendly * Use in very thin sheet metal, various soft plastics/fiberalass applications
• Wide qrip range for variable thickness materials and for part consolidation
• Soft installation forces to avoid fracturing in soft or brittle materials, or damaging finishes
• Available in steel, aluminum and stainless steel
• Available in 6-32 to 3/8-16 & M4 to M10 thread size

* Designed for superior pullout resistance in plastics and thin sheet metal.

* Pre-bulbed design requires less installation load.

* Pre-bulbed inserts require less installation load than straight shank and require slightly larger mounting hole size.

* Other materials available.