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Crosby Swivel Hooks 

EYE HOOKS

S-320N



S-320

Hoist hooks incorporate markings forged into the product which address two (2) QUIC-CHECK™ features:

Deformation Indicators—Two 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 Indicators—Indicates 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 hooks—average straightening load (ultimate load) is 5 times Working Load Limit. Alloy eye hooks 1 ton through 22 ton—average straightening load (ultimate load) is 5 times Working Load Limit. Alloy eye hooks 30 tons through 60 tons—average 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 hooks—average straightening load (ultimate load) is 4 times Working Load Limit.
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