Shackle hardware has been in use in construction and rigging for 150 years with little or no improvement. Standard shackles with a pin held in place by a cotter pin, a threaded pin with a nut or a screw pin that threads into the shackle ear are all susceptible to failure. Cotter pins get lost, nuts and screw pins back off the bolt due to vibration or running lines. Our own heightened concern for safety while working on towers led to the invention of the patented Sur-Loc one-piece shackle with a locking pin that can't get lost.

Sur-Loc shackles are precision investment castings with a tolerance of .005 inches. They are made of non-magnetic, non-conductive, and non-corrosive 316 stainless steel. High strength 15-5 P.H. high test stainless and economical 4330 high test galvanized steel are also used to construct our shackles. Sur-Loc shackles have been strength tested and proven at 80,000 PSI and up to 200,000 PSI. The plunger is lined with Delrin low-friction, long-wear engineering thermoplastic. The alloys used are carefully controlled and every batch is sampled and tested with samples kept for lifetime quality control.

Sur-Loc shackles can be installed or replaced with no tools required. They can be opened in 10 seconds and closed in 8. They are available in sizes 1/2" to 1".

Sur-Loc Shackles are ideal for:
• Horizontal Lifelines	• Engineering Firms
• Towing Rigs	• Rigging and Overhead Lifting
• Utilities	• Ship and Dock Yards
• Offshore Drilling	• Military Applications
• Safety Netting	• Automotive, Chain, Crane, Hoist, Marine, Tractor, and Other Manufacturing Operations
• Roofing
• Construction
Want more info? Check out our Safety Shackle documents. You'll need Adobe Acrobat Reader to view our literature.
• Safety Shackle Brochure
• Safety Shackle Spec. Sheet