BSA Enterprises provides a comprehensive selection of high-quality nuts for industrial applications, ensuring precision and durability for diverse needs.


Cage Nut

Cage nuts are designed for use with rack-mounted equipment like server racks and network cabinets. They have a spring-like “cage” surrounding the nut, allowing easy insertion into square mounting holes. Once inserted, the cage nut’s tabs secure it in place, preventing spinning or falling out. This design is ideal for limited access installations, as they can be installed from one side without needing to hold the nut. Cage nuts are commonly used in IT, telecommunications, and industrial equipment installations.

Castle Nut

Castle nuts, also known as castellated nuts or slotted nuts, feature slots or notches on one end to accommodate a locking mechanism like a cotter pin. They are used to secure bolts or threaded rods in applications where vibration or movement may cause loosening. Castle nuts provide a secure fastening solution, commonly found in automotive, machinery, and structural assemblies.

Dome Nut

A dome nut, also called a cap nut or acorn nut, covers the end of a bolt or threaded rod with its rounded top, providing protection and a streamlined appearance. It’s used where exposed threads need covering and protection, common in architectural, automotive, and decorative applications, as well as furniture assembly and fencing. Available in various materials and finishes, dome nuts offer a versatile and visually appealing fastening solution.


Extension Nut

Extension nuts, also called coupler nuts or rod coupling nuts, extend the length of threaded rods or bolts. They feature internal threading throughout for joining two threaded components to create longer assemblies. Commonly used in construction, plumbing, and electrical work, they offer a convenient and secure method for extending threaded components. Available in different materials and thread sizes, extension nuts provide versatility for various applications.

Flange Nuts

Flange nuts have a wide base (flange) acting as a built-in washer, preventing sinking into materials. Commonly used in automotive, machinery, and construction, they spread load over a larger area for stability. Available in various styles like hex and serrated, they offer versatility in different environments. Flange nuts ensure secure fastening and added stability, particularly where vibrations may cause loosening.

Flanged Nylock Nut

Flanged nylock nuts feature a built-in washer (flange) and a nylon insert to prevent loosening from vibrations. They’re commonly used in automotive and machinery assembly for secure fastening. The nylon insert creates friction, locking the nut in place once tightened. Available in various materials and sizes for different applications.

Hex Jam Nut

A hex jam nut is a type of nut with a thinner profile compared to standard hex nuts. It is typically used as a locking nut to secure another nut in place or to adjust the position of a threaded rod or bolt without unthreading the primary nut. Hex jam nuts are commonly used in automotive, machinery, and construction applications where space is limited or where a low-profile nut is required. They provide a reliable and secure locking solution and are available in various materials and sizes to suit different applications.

Hex Nut

A hex nut is a six-sided nut designed to be tightened or loosened with a wrench or socket. It is one of the most common types of nuts used in fastening applications and is compatible with bolts, screws, and threaded rods with matching threading. Hex nuts come in various sizes and materials, such as steel, stainless steel, brass, and nylon, to accommodate different requirements for strength, corrosion resistance, and environmental conditions. They are widely used in construction, automotive, machinery, and manufacturing industries for securing components together.

Hex Weld Nut

A hex weld nut is a specialized nut designed to be welded onto a metal surface. It features a hexagonal shape with internal threads for securing bolts or screws. These nuts are used in applications where a permanent threaded connection is needed, offering a strong and reliable fastening solution without the need for drilling and tapping holes. Widely used in automotive, construction, and manufacturing industries, hex weld nuts come in different sizes and materials to suit various welding and fastening needs.

Metal Insert Lock Nut

A metal insert lock nut, also known as a prevailing torque lock nut, features an internal metal insert, typically made of nylon. This insert creates friction when tightened onto a bolt, preventing loosening due to vibration or torque. Widely used in automotive, machinery, and aerospace industries, these nuts offer a reliable and cost-effective solution for maintaining secure fastening.

Nylock Nut

Nylock nuts, also known as nylon insert lock nuts, are threaded nuts with a built-in nylon insert. This insert creates friction against the mating threads when the nut is tightened onto a bolt or threaded rod, preventing it from loosening due to vibration or torque. Nylock nuts provide a secure and reliable fastening solution and are commonly used in automotive, machinery, and construction applications where vibrations are a concern. They are available in various sizes and materials to suit different requirements and are easy to install with standard tools.

Self Clinching Nut

Self-clinching nuts are fasteners for permanent installation in thin metal sheets. They feature a knurled or serrated shank and are inserted into pre-punched or pre-drilled holes. Once inserted, they’re pressed or clinched into place, causing the metal sheet to cold flow and secure the nut. This eliminates the need for additional hardware and is commonly used in electronics, automotive, and aerospace industries for secure fastening in limited-access areas. They come in various styles and offer excellent resistance to vibration.


Square Weld Nut

Square weld nuts are nuts designed to be welded onto a metal surface, featuring a square-shaped base with internal threads for bolt or screw mating. They provide a strong and permanent fastening solution, commonly used in automotive, construction, and manufacturing industries. With their flat sides facilitating alignment during welding, they offer reliability where drilling and tapping holes may not be feasible. Square weld nuts come in various sizes and materials to suit different welding and fastening needs.

T Nut

A tee nut, also called a T-nut or blind nut, has a pronged base resembling the letter “T”. It’s inserted into a pre-drilled hole in wood or composite materials and tightened from the opposite side with a bolt or threaded rod. The prongs embed into the material, providing a secure connection. Tee nuts are commonly used in furniture assembly and woodworking, allowing for strong and flush mounting points without needing access to the back side of the material. Available in various sizes and materials, tee nuts offer versatility for different project needs.

Wing Nut

A wing nut is a nut with protruding “wings” on each side, allowing for manual tightening and loosening without tools. These wings provide leverage for hand-turning, making them ideal for applications requiring frequent adjustments or where tools are unavailable. Commonly used in fixtures, clamps, and machinery, wing nuts offer convenience and versatility in construction, automotive, and manufacturing. Available in various sizes and materials, they provide a simple and effective solution for securing components without tools.