Crosby Group

Material Composition: Forged alloy steel, quenched and tempered for impact toughness and fatigue resistance. Working Load Limit (WLL): 16,500 lbs (8.25 tons) under standard configuration. Proof Load Tested: Individually tested at 2.5 times the Working Load Limit with standard certification. Design Factor: 4:1 safety threshold.

Working Load Limit (WLL): 6,600 lbs (3.3 tons). Material & Build: Forged alloy steel, quenched and tempered for extreme strength. Design Factor: 4:1 safety factor (ultimate breaking load is 4 times the WLL). Standards Compliance: Meets the rigorous performance requirements of ASME B30.26 for rigging hardware. Testing: Individually proof-tested at 2.5 times the WLL with

If read as the model A-336 in a 1/2-inch size, this is an alloy steel chain connecting link used to assemble chain slings. Working Load Limit (WLL): 11,300 lbs. (Grade 63) or up to 15,000 lbs. depending on the exact Grade rating (Grade 80/100). Application: Fully rated and approved for overhead lifting.

The Crosby 7/16" A-331 alloy clevis slip hook is designed for chain sling and general lifting applications. Rated at 7,000 lbs. WLL, it provides reliable load engagement with open throat design for quick attachment in overhead lifting and industrial rigging operations.

The Crosby 5/8" A-331 alloy clevis slip hook is designed for chain sling and general lifting applications. Rated at 13,500 lbs. WLL, it provides reliable load engagement with open throat design for quick attachment in overhead lifting and industrial rigging operations.

Chain Size: 5/16" (8 mm) Working Load Limit (WLL): 4,300 lbs (2.15 tons) Material: Forged alloy steel, quenched and tempered Design / Safety Factor: 4:1Attachment Type: Clevis pin Application Use: Grade 70 transport chain and general tie-downs Overhead Lifting: Not rated for overhead lifting

The Crosby A-331 3/8" is a heavy-duty alloy steel clevis slip hook designed primarily for cargo securement, towing, and transport tie-down applications. It features an open throat design that allows a 3/8-inch transport chain to slide freely through the hook bowl for quick attachment.

Compatible Chain Size: 1/4" (also fits 9/32" Grade 70 / Grade 80 chain) Working Load Limit (WLL): 2,750 lbs (1.38 tons) up to 3,500 lbs depending on the rating standard Design Safety Factor: 4:1Attachment Type: Clevis pin configuration for quick, secure linking Lifting Restriction: NOT intended for overhead lifting. It must not be used with chain slings for overhead crane work.

Working Load Limit (WLL): 9,000 lbs (4.50 Tons). Design Safety Factor: 4:1 minimum ultimate load. Material Construction: Forged alloy steel quenched and tempered. Compatible Chain: Optimized for Grade 70 transport chain. Dimensions: 1.69" throat opening width, 0.63" pin diameter, and roughly 2.75 lbs. total weight. Attachment Method: Clevis style with a quenched and tempered alloy load pin and cotter included.

The Crosby A-330 5/8" is a heavy-duty, Grade 80 alloy steel clevis grab hook manufactured by Kito Crosby under the part number 1027347. It is designed primarily for secure tie-down, cargo control, and chain-shortening applications using 5/8-inch (16mm) transport chain.

The Crosby A-330 5/16" is a heavy-duty, forged alloy steel clevis grab hook designed primarily for tie-down, load securement, and transport applications. It is specifically engineered to achieve positive engagement when grabbing back into a chain to shorten or hold a load.

3/8" ALLOY GRAB HOOKS 1027285-CROA3303/8 >

The Crosby A-330 3/4" is a heavy-duty Grade 80 alloy steel clevis grab hook manufactured by Kito Crosby. It is specifically engineered for securing, shortening, and controlling heavy loads in tie-down and transport applications using 3/4-inch chains.

Forged steel, Quenched and Tempered
Features quick and easy assembly
Designed for use with Grade 70 chain
Not intended for overhead lifting
Must be proof-tested prior to use with a Grade 80 chain sling, in accordance with ASME B30.9

Working Load Limit (WLL): 12,000 lbs (6.00 tons) Design Factor: 4:1 safety factor Chain Rating: Designed for Grade 80 / Grade 8 alloy chains. Overhead Lifting: Suitable for overhead lifting only if it is proof-tested as part of a chain sling assembly according to ASME B30.9 standards.

Crosby A327 3/4 Eye Sling Hook WLL 28300# Grade 80

Alloy Steel – Quenched and Tempered.
Individually Proof Tested at 2-1/2 times the Working Load Limit with certification.
S-4088 Latch Kit fits hooks.

You said: CROSBY A3271/4The Crosby A327 1/4" (specifically manufacturing part number 1003764) is a heavy-duty, Grade 80 Alloy Steel Eye Sling Hook. This high-strength industrial rigging hook is engineered for overhead lifting and chain sling assemblies. Note that while the model has been largely succeeded by newer Grade 100 variations like the L-1327, it is still highly sought after as a reliable component for existing legacy lifting setups.

The designation CROSBY A323 5/16 refers to a 5/16-inch alloy eye hook or rigging component manufactured by The Crosby Group.However, because industrial catalogs often have highly precise alphanumerical overlaps, this part string typically matches two entirely different types of hardware.

The Crosby A-323 3/8" is a heavy-duty, forged alloy steel Eye Grab Hook primarily designed for chain shortening, load securement, and tie-down applications. Manufactured by Kito Crosby, this hook has a Working Load Limit (WLL) of 7,100 lbs (3.55 tons) and features a standard 4:1 safety design factor.

orking Load Limit: 5,700 lbs.
Safety Factor: 4:1
Grade: 80 / 100
Chain Size: 5/16"
Item Weight: 0.35 lbs.
Standards: Meets or exceeds ASTM A952 / A952M & ASME B30.26 requirements.
Manufacturer Name: Crosby®

The Crosby A-1337 3/4" is a heavy-duty LOK-A-LOY® 10 Alloy Connecting Link (Brand Part Number: 1015154) used for secure chain assembly in industrial lifting and rigging. It is specifically engineered to create reliable, permanent connections between chains, master links, and hooks without requiring special installation tools

Block Size: 4 inches End Fitting: HS (Loose Side Hook with Latch) Rope Size: Designed for 5/8 inch diameter line Sheave Configuration: Single sheave featuring a bronze bushing for extended block life

Model / Series: 10-2Nominal Outside Diameter: 9-7/8 inches Compatible Wire Rope Size: 1/2 inch Shaft (Bore) Size: 1-1/2 inches Rim Width: 1-3/4 inches Hub Width: 1-5/8 inches Nominal Hub Outside Diameter: 2-9/16 inches Nominal Tread Diameter: 8-5/16 inches Material: Forged Steel (F.S.) Approximate Weight: 14.50 lbs