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All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Tube Bushings > Part # TBA-M8-25-120  
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Part # TBA-M8-25-120, Tube Bushings


High strength, threaded fastener designed for aluminum extrusions

High strength, threaded fastener for aluminum tubing

Designed with a double clinch feature on both ends, TBA™ and TBFA™ (flange style) fasteners firmly lock into place in the aluminum tube during installation.

  • Designed for square or rectangular aluminum tubing
  • Connects two sides of the tubing
  • High strength thread (meets Class 10 proof load requirements when the effective thread depth is greater than 1.5 times the major diameter), and high torque resistance
  • Improve the strength and Noise, Vibration, and Hardness (NVH) performance
  • Installs into round holes

This datasheet showcases custom-designed parts developed for square and rectangular aluminum tubing. Samples of these solutions are available from stock.

The datasheet illustrates PennEngineering’s expertise in creating strong, reliable threads in tubing applications. Since dimensions may vary with tube size and wall thickness, our engineering team can help tailor the design to your specific needs. Contact us to explore the best solution for your application.

Note: Additional sizes available on special order. Contact us for availability.




 Specifications   

Thread Size x Pitch
M8 x 1.25

Optional Styles1
#1

Type
TB

Fastener Material
7000 Series Aluminum

Thread Code
M8

Shank Code
25

Length Code
120

A Max.
2.50 mm

B Max.
14.50 mm

C Max.
11.00 mm

L Ref.
12.00 mm

Thickness T1 Min.
2.50 mm

Thickness T2 Min.
2.50 mm

Hole Size D1 +0.1mm
11.00 mm

Hole Size D2 +0.1mm
14.50 mm

Overall Height H Ref.
12.00 mm

Standard Finish
No Finish, (Plain)

For Use in Sheet Hardness2
HRB 55 / HB 96 or less

Thread Specification
Internal, ASME B1.1, 2B /ASME B1.13M, 6H

CAD Supplier
PennEngineering® (PEM®)
1 Style #1 - Thru-threaded.
Style #2 - Screw might not pass through unthreaded end. Tapped to minimum full thread depth shown. Incomplete threads on tap may allow screw to pass through.
Style #3 - Blind threaded hole.
2 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.


 MORE IMAGES 

·  Tube Bushings_4



 DOWNLOADS 

Tube Bushings Brochure
(PDF, 920KB)


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