Structural Tube Connectors & Tube Closures

Structural steel tube connector nuts and industrial metal or plastic tube closures are cost-effective alternatives for welding when joining two tubes or closing a tube end. Designed to deliver long-lasting and dependable performances, tube connector nuts and tube closures are easy to install, hold up in heavy-duty applications, and provide many other benefits to industrial furniture assemblies.

Whether you’re a furniture OEM building assemblies for offices or a part of a janitorial team maintaining school furniture or something else entirely, Superior Components has the bulk furniture fasteners, parts, and components you need to complete any job. Our extensive stock is ready to ship, with discounts for bulk orders available. Contact us with any questions, then start your order today!
 


Available Structural Tube Connectors & Closures

We maintain an extensive stock of structural tube connector nuts and plastic or metal tube closures to match the needs of any assembly. However, we understand that not all projects are satisfied with standard off-the-shelf options. To meet the diverse requirements of unique applications, Superior Components offers several custom manufacturing capabilities to deliver results that match every specification. Call 815-254-2313 to learn more!

Steel Tube Connector Nuts

Tube connectors—also known as spider clips, tube connector nuts, and other names—are designed to install into a hole in work or inside a tube. We offer options for round, square, rectangular, and oval tubes. Steel structural tube connector nuts provide a female threaded opening to thread a male stud. We stock industrial tube connector nuts in many configurations to match your requirements:
  • Square and round options
  • 5/8” to 2”+ OD round and square tube
  • 10 to 20 gauge tube with 1/4-20, 5/16-18, 3/8-16, M6, and M8 female thread
  • Various English and Metric thread sizes
  • Left-handed threads
  • Male-threaded studs
  • And much more!

Steel Tube Closures

Designed to close the end of a tube and provide increased aesthetic appeal, steel tube closures are typically a one-piece stamped steel part that press-fit inserts into the end of a tube. Our in-stock and ready-to-ship steel tube closures feature many benefits for industrial furniture manufacturers and are available with several configurations, including:
  • Standard style or turned-up retaining prongs
  • Tube OD from 1/2" to 1-1/4”
  • 12-18 to 18-20 gauge
  • And more!

Plastic Tube Closures

Industrial plastic tube closures are cost-effective one-piece parts usually made from LDPE. Plastic tube closures are designed to press-fit into round, square, rectangular, and oval tubing, and most configurations can also be used as insert glides. We offer an extensive range of options, so shop our inventory to find the best plastic tube closure for your furniture assembly:
  • 3/8” to 6”+ OD tube in 3-23 gauge tube range
  • Gloss, matte, or textured finish on the head
  • Flat wall, vertical ribs, and horizontal fins styles available
  • And other options!

Superior Components is the World’s Largest Stocking Distributor of Furniture Parts

Superior Components was founded in 1982, and we have been providing excellent products and services for the best prices ever since. From structural tube connector nuts to adjustable glides and beyond, we have the inventory, expertise, and expedited shipping capabilities to satisfy the needs of most bulk orders.

Contact us or request a quote to learn more about how we can support your industrial furniture operation, or begin an order today. 

 
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