Wire Rope Thimbles

Holloway Houston stocks a comprehensive inventory of Crosby thimbles, including Heavy-Duty, Solid, and Open Pattern configurations. Unlike light-duty commercial hardware, these thimbles are manufactured from hot-rolled steel and Hot Dip Galvanized to resist corrosion in harsh offshore and industrial environments.

Thimble Types & Applications

Heavy-Duty Wire Rope Thimbles (G-414) The industry standard for wire rope slings and winch lines. The G-414 offers a thicker steel section and deeper groove than standard "light duty" thimbles, providing superior resistance to deformation under heavy loads.

• Application : General purpose rigging, sling fabrication, and turnback eyes.
• Compliance : Meets Federal Specification FF-T-276b Type III.
• Popular Choice : Check the Crosby G-414 Heavy-Duty Thimble for sizes ranging from 1/4" to 2-1/4".

Solid Wire Rope Thimbles (S-412) Designed for applications where the mating pin size is critical and closely matches the thimble bore. Solid thimbles are cast (ductile iron) or machined, offering a rigid, non-collapsible eye.

• Application : Boom pendants, crane suspension lines, and connections to spelter sockets or shackles where movement must be minimized.
• Design : Provides a solid steel interface for the pin, eliminating the risk of the thimble collapsing.
• Popular Choice : Check the Crosby S-412 Solid Wire Rope Thimble for high-stress pendant lines.

Open Pattern Thimbles (G-408) Sometimes you need to install a thimble into a closed fitting (like a master link, eyebolt, or pad eye) where there is no opening to pass a standard thimble through. The G-408 features an "open" design that allows it to be slipped over the connecting hardware before the wire rope is spliced around it.

• Application : Connecting wire rope to fixed eyes, rings, or welded lugs.
• Popular Choice : Check the Crosby G-408 Open Thimble for retrofitting or restricted access terminations.

The Technical Advantage

Why is a thimble mandatory for permanent slings?

• D/d Ratio Protection : A wire rope loses strength if bent too sharply. A thimble forces the rope to maintain a generous curve radius, ensuring the termination retains its rated efficiency.
• Wear Shielding : When a sling connects to a shackle, friction occurs. A thimble ensures the steel hardware rubs against the thimble wall, not the expensive wire strands.
• Load Distribution : It prevents the loop from flattening or distorting, which would unbalance the load on the individual wire strands.

Capacity Range & Sizes

We stock thimbles to match every diameter of wire rope in our warehouse.

• Small Diameter : 1/4" to 3/8" for winch lines and utility cables.
• Standard Rigging : 1/2" to 1-1/2" for standard industrial slings.
• Heavy Lift : Large bore G-414 thimbles up to 2-1/4" for heavy marine construction.

Technical Specifications & Compliance

• Standard : Meets requirements for wire rope sling fabrication under ASME B30.9.
• Material : G-414 (Rolled Steel), S-412 (Ductile Iron).
• Finish : Hot Dip Galvanized for superior corrosion protection (Standard on G-414 and G-408).

HHI Rigging Services

We are a full-service rigging shop.

• Sling Fabrication : We can professionally swage these thimbles into Wire Rope Slings using our 3,000-ton presses.
• Inspection : Our team can inspect used slings to check for thimble deformation, cracks, or erosion, common signs of overload or wear.

Complete Your Assembly

A thimble needs a termination to hold it in place. Pair these with Crosby S-505 Swaging Sleeves for a permanent splice, or use Crosby G-450 Wire Rope Clips for a field-installable eye. Connect the finished eye to your load using Crosby G-2130 Shackles or G-320 Sling Hooks.

Browse our inventory below to filter by Thimble Type and Wire Rope Size.