Hoist hooks incorporate markings forged into the product which address two (2) QUIC-CHECK™ features:
Deformation IndicatorsTwo strategically placed marks, one just below the shank or eye and the other on the hook tip,
which allows for a QUIC-CHECK™ measurement to determine if the throat opening has changed, thus indicating abuse or overload.
To check, use a measuring device (i.e., tape measure) to measure the distance between the marks. The marks should align to either an inch
or half-inch increment on the measuring device. If the measurement does not meet this criteria, the hook should be inpected further for
possible damage.
Angle IndicatorsIndicates the maximum included angle which is allowed between two (2) sling legs in the hook. These indicators
also provide the opportunity to approximate other included angles between two sling legs.
New 320N style hook.
S-320 style hook.
* NOTE: Eye Hooks (¾ TC - 22TA), Proof load is 2.5 times Working Load Limit. Eye hooks (20 TC - 60 TA), Proof load is
2 times Working Load Limit. All carbon hooksaverage straightening load (ultimate load) is 5 times Working Load Limit. Alloy
eye hooks 1 ton through 22 tonaverage straightening load (ultimate load) is 5 times Working Load Limit. Alloy eye hooks 30
tons through 60 tonsaverage straightening load (ultimate load) is 4.5 times Working Load Limit. All Alloy shank hooks
average straightening load (ultimate load) is 4.5 times the Working Load Limit. All Bronze hooksaverage straightening load
(ultimate load) is 4 times Working Load Limit.