Standard Lengths: Standard lengths are 10 feet (3.05M) and 20 feet (6.10M). Tolerances are: ±1/8" (3.2 mm) to ±1/2" (12.7 mm) to allow for cutting. Special lengths are available for a small cutting charge with a tolerance of ±1/8" (3.2mm).
Application: A framing system designed for medium loads, the 1-1/4" series is especially suitable for use in the OEM, commercial and display markets. It maintains a lightness in scale and a clean line that makes it aesthetically pleasing as well as functional.
Threads: All threads on the nuts and bolts are Unified and American coarse screw threads.