Crosby Group
Working Load Limit (WLL): 11,300 lbs (5.13 metric tons) Design Factor: 4:1 safety ratio (ultimate strength is 4 times the WLL) Material: Quenched and tempered forged carbon steel body with alloy steel pins Chain Compatibility: Designed for Grade 3, Grade 4, and Grade 7 (Transport)
S-314-A-1/4 CROSBY MATERIAL HANDLING GROUP 1/4"-5/16" LATCHING HOOKS
Crosby S-314A Clevis Chain Hooks are made from forged alloy steel - quenched and tempered. This hook features a heavy-duty latch and has a large throat opening.
Specifications:
Chain Size: 1/4"-5/16"
Replacement Latch: 307-1291402
Working Load Limit: 4500 lbs (2 tons)
Design Factor 4:1
The Crosby S-314A 3/8" is a high-strength, Grade 80 alloy steel clevis sling hook featuring an integrated heavy-duty latch. It is manufactured by Kito Crosby and specifically engineered for secure overhead lifting, rigging, and alloy chain sling assemblies.
The Crosby S-317A 1/2" (often labeled under the manufacturer catalog code CROS317A1/2 or stock sequence) refers to a 1/2-inch Forged Alloy Steel Hoist Hook. Forged by Kito Crosby, this heavy-duty rigging component is quenched and tempered, built explicitly to handle critical vertical lifting and pulling applications with Grade 80 or Grade 100 alloy chain slings.>
Working Load Limit: 11 Metric Tons (24,200 lbs.). Material Construction: Forged Alloy Steel, quenched and tempered for a superior strength-to-weight ratio. Design Safety Factor: 5:1 metric rating. Frame Size Identifier: Frame Size K. Fatigue Rating: Tested to 20,000 cycles at 1.5 times the WLL.
S-340-1/2 CROSBY 1/2" WELDLESS SLING LINKS
Working Load Limit (WLL): 6,500 lbs (2.95 tons), Material: Forged carbon steel. Manufacturing Process: Quenched and tempered for optimal fatigue and impact strength. Design Factor: 5:1 safety margin. Finish: Self-colored (painted/uncoated steel).
S-341-3/8 CROSBY 3/8" WELDLESS SLING LINKS
Trade Size: 3/8"Working Load Limit (WLL): 1,800 lbs (0.82 tons) for inline pull Material: Forged carbon steel (Quenched and Tempered) Finish: Self-colored / painted Design Factor: 6:1
S-643-1-1/4X5 CROSBY1-1/4 X 5 ALLOY WELDLESS RING
Chain Diameter: 1/4 inch Sling Reach (Length): 5 feet (measured bearing point to bearing point) Material Grade: Grade 100 Alloy Steel (engineered for high strength and optimized for safe overhead lifting) Working Load Limit (WLL): 4,300 lbs when used at a 90-degree lifting angle
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Size: 5/8"
Single Leg Chain Diameter: 5/16"
Double Leg Chain Diameter: 9/32" (1/4")
Type: Oblong Master Link
Inside Length: 6"
Inside Width: 3"
MPN: 1014280
Model: A-342
Rated for Overhead Lifting
Stock Number: 1013147Chain Size Compatibility: 1/2 inch Material Construction: Forged carbon steel body with heat-treated alloy steel pins. Design Factor: 4:1 ultimate strength to Working Load Limit ratio.
Bondhus® 10610 Ball End Standard Length Screwdriver, 3/16 in Ball End Hex Point, 8 in OAL, Thermoplastic/Soft Rubber Handle, ProGuard™
Bondhus® 10610 Ball End Standard Length Screwdriver, 3/16 in BallDriver® Hex Point, 8 in OAL, Thermoplastic/Soft Rubber Handle, ProGuard™
The Crosby A-342 series refers to high-strength, forged alloy master links used for heavy-duty rigging and overhead lifting applications. Depending on whether you are referencing the 3/4-inch material size or the 4-inch material size, the technical specifications vary drastically.
A-331-5/16 CROSBY MATERIAL HANDLING GROUP 5/16"ALLOY CLEVIS SLIP HOOK1
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
A-331-7/16 CROSBY MATERIAL HANDLING GROUP 7/16" CLEVIS SLIP HOOK
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.
