All Crosby 320 Eye Hoist Hooks incorporate the following features:
A complete line of Eye hoist hooks.
Available in carbon steel and alloy steel.
Designed with a 5:1 Design Factor for (Carbon Steel); 4:1 Design Factor for (Alloy Steel).
Eye hooks are load rated.
Proper design, careful forging and precision controlled quenched and tempering gives maximum strength without excessive weight and bulk.
Every Crosby Eye Hook has a pre-drilled cam which is equipped with a latch. Even years after the purchase of the original hook, replacement latch assemblies can be added. (Contact us)
Chemical analysis and tensile tests performed on each PIC to verify chemistry and mechanical properties.
Type Approval and certification in accordance with ABS 2006 Steel Vessel Rules 1-1-17.7, and ABS Guide for Certification of Cranes.
Hoist hooks incorporate two types of strategically placed markings forged into the product which addresses two (2) QUIC-CHECK® features:
Deformation Indicators and Angle Indicators (
The following additional features have been incorporated in the new Crosby S-320N Eye Hoist Hooks. (Sizes 3/4 metric tonne Carbon through 22 metric ton Alloy.)
Metric Rated at 5:1 Design Factor for (Carbon Steel); 4:1 Design Factor for (Alloy Steel).
Can be proof tested to 2 times the working Load Limit.
Low profile hook tip.
New integrated latch (S-4320) meets the World class standard for lifting.
Heavy duty stamped latch interlocks with the hook tip.
High cycle, long life spring.
When secured with the proper cotter pin through the hole in the tip of the hook, meets the intent of OSHA Rule 1926.1431(g) and 1926.1501(g) for personnel hoisting.
Fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles.
Working Load Limit (t)
Hook ID Code
Eye Hook Stock No.
Weight Each (kg.)
Alloy S-320A S-320AN S.C.
*Alloy eye hooks 1 tonne through 22 ton-average straightening load (ultimate load) is 5 times Working Load Limit. Alloy eye hooks 30 tonnes through 60 tons-average straightening load (ultimate load) is 4.5 times Working Load Limit. † New 320N style hook.
Hoist hooks incorporate markings forged into the product which addresses 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 inspected 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.
Hook ID Code*
*Eye Hooks to 22TA), Proof load is 2 times Working Load Limit. Alloy eye hooks 1t through 22t - average straightening load (ultimate load) is 5 times Working Load Limit. Alloy eye hooks 30t through 60t - average straightening load (ultimate load) is 4.5 times Working Load Limit. † to 22tA dimensions shown are for S-4320 Latch Kits.
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