This is a 1x19 liftarm. Every other hole is threaded for a screw. The threaded holes are not compatible with technic pins or axels, however, the non-threaded holes are compatible. Screw size is #10 machine screw, 24 TPI Coarse.

This is a CNC Milled Aluminum LEGO® Technic compatible, custom-made piece. These are made for heavy duty use.

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