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Aluminum framing connections

Aluminum Profile Accessories for Industrial Framing

Standard and made-to-drawing fastening components for machine frames, guards, conveyors, workstations and modular aluminum structures.

Aluminum Profile Accessories for Industrial Framing

Selecting aluminum profile accessories requires more than matching a thread size. The profile series, slot opening, internal cavity, loading method and expected load all affect whether a fastener will install and hold correctly. Longjin supplies slot fasteners for common 20, 30, 40 and 45 series industrial aluminum framing systems.

Our range includes T-slot nuts, slide-in nuts, spring nuts, T-bolts and related connection parts. Standard items support routine frame assembly, while special widths, heights, thread locations and materials can be reviewed from a drawing, sample or profile cross-section. Confirming the interface early helps avoid loose fits, blocked installation and mixed parts on the assembly line.

How to select

Start with the extrusion rather than the fastener name. Four details usually narrow the selection quickly.

  1. 01

    Profile and slot

    Profiles in the same nominal series may use different slot systems. Share the cross-section and slot dimensions.

  2. 02

    Loading method

    End-loading parts suit planned assembly; drop-in or post-assembly styles suit frames that are already closed.

  3. 03

    Thread and load

    Match the mating bolt and attachment hole, then consider the direction and level of the working load.

  4. 04

    Material and finish

    Humidity, cleanliness, appearance and corrosion requirements determine the suitable material and coating.

Applications

  • Automation machine frames
  • Conveyors and workstations
  • Safety guards and enclosures
  • Modular display structures
  • Solar and general industrial assembly
  • Laboratory and inspection equipment

Manufacturing & quality control

Material, forming, threading, finishing and final inspection are controlled against the confirmed drawing or approved sample. Export orders can also follow agreed packaging, labeling and sampling requirements so components are easier to identify at the assembly site.

Share the profile series, slot width, thread, material and quantity so we can help confirm the right part.
  1. 1

    Confirm the profile and joint

  2. 2

    Review material, thread and finish

  3. 3

    Approve sample or first article

  4. 4

    Run production and in-process checks

  5. 5

    Complete final inspection and packing

Frequently asked questions

How do I know whether an accessory fits my extrusion?

Send the profile series, slot width and a cross-section drawing or clear dimensions. A name such as “40 series” alone may not identify the internal slot geometry.

Can several nut and bolt types be supplied together?

Yes. A project list can combine standard sizes, with packaging and labels agreed before the order to help your assembly team separate the parts.

Do you support stainless steel and non-standard sizes?

We can review 304 stainless steel and special geometry. Please provide a drawing or sample, the service environment and expected volume for a manufacturing assessment.

Send an inquiry

Share the profile series, slot width, thread, material and quantity so we can help confirm the right part.