Crosby Quick Check
All Crosby Shackles, with the exception of 2160, 2169, 2170, 252 and 253 styles incorporate markings forged into the product that address an easy to use QUIC-CHECK® feature.
Angle indicators are forged into the shackle bow at 45 degree** angles from vertical. These are utilized on screw pin and bolt type shackles to quickly check the approximate angle of a two-legged hitch,
or quickly check the angle of a single leg hitch when the shackle pin is secured and the pull of the load is off vertical (side loaded),
thus requiring a reduction in the working load limit of the shackle.
** Round Pin Shackles utilize the 45 degree QUIC-CHECK® indicators to ensure load is applied strictly in-line.