Tube Bushings On PennEngineering

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.

Part #	Thread Size x Pitch	Optional Styles	Type	Fastener Material	Thread Code	Shank Code	Length Code	A Max.	B Max.	C Max.	CAD
TBA-M6-30-170	N/A M6 x 1.0	N/A #1	N/A TB	N/A 7000 Series Aluminum	N/A M6	N/A 30	N/A 170	N/A 3.00 mm	N/A 12.00 mm	N/A 9.00 mm	N/A
TBA-M8-25-120	N/A M8 x 1.25	N/A #1	N/A TB	N/A 7000 Series Aluminum	N/A M8	N/A 25	N/A 120	N/A 2.50 mm	N/A 14.50 mm	N/A 11.00 mm	N/A
TBA-M10-25-270	N/A M10 x 1.50	N/A #1	N/A TB	N/A 7000 Series Aluminum	N/A M10	N/A 25	N/A 270	N/A 2.50 mm	N/A 21.50 mm	N/A 15.00 mm	N/A
TBFA-M6-20-105	N/A M6 x 1.0	N/A #1	N/A TBF	N/A 7000 Series Aluminum	N/A M6	N/A 20	N/A 105	N/A 2.00 mm	N/A 12.00 mm	N/A 9.00 mm	N/A
TBFA-M8-25-250	N/A M8 x 1.25	N/A #1	N/A TBF	N/A 7000 Series Aluminum	N/A M8	N/A 25	N/A 250	N/A 2.50 mm	N/A 16.00 mm	N/A 11.00 mm	N/A
TBFA-M10-25-240	N/A M10 x 1.50	N/A #1	N/A TBF	N/A 7000 Series Aluminum	N/A M10	N/A 25	N/A 240	N/A 2.50 mm	N/A 21.50 mm	N/A 15.00 mm	N/A

N/A #1

N/A TB

N/A 7000 Series Aluminum

N/A M6

N/A 30

N/A 170

N/A 3.00 mm

N/A 12.00 mm

N/A 9.00 mm

N/A

TBA-M8-25-120

N/A M8 x 1.25

N/A #1

N/A TB

N/A 7000 Series Aluminum

N/A M8

N/A 25

N/A 120

N/A 2.50 mm

N/A 14.50 mm

N/A 11.00 mm

N/A

TBA-M10-25-270

N/A M10 x 1.50

N/A #1

N/A TB

N/A 7000 Series Aluminum

N/A M10

N/A 25

N/A 270

N/A 2.50 mm

N/A 21.50 mm

N/A 15.00 mm

N/A

TBFA-M6-20-105

N/A M6 x 1.0

N/A #1

N/A TBF

N/A 7000 Series Aluminum

N/A M6

N/A 20

N/A 105

N/A 2.00 mm

N/A 12.00 mm

N/A 9.00 mm

N/A

TBFA-M8-25-250

N/A M8 x 1.25

N/A #1

N/A TBF

N/A 7000 Series Aluminum

N/A M8

N/A 25

N/A 250

N/A 2.50 mm

N/A 16.00 mm

N/A 11.00 mm

N/A

TBFA-M10-25-240

N/A M10 x 1.50

N/A #1

N/A TBF

N/A 7000 Series Aluminum

N/A M10

N/A 25

N/A 240

N/A 2.50 mm

N/A 21.50 mm

N/A 15.00 mm

N/A

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