Which fasteners are categorized as high strength blind structural fasteners?

• A. Jo-bolts
• B. Hi-shear rivets
• C. Hi-lok fasteners
• D. Solid shank rivets

Answer: (A)

High strength blind structural fasteners are designed for applications requiring significant strength while allowing for installation in areas that might not be accessible from both sides. Among the options provided, Jo-bolts meet these criteria as they are specifically engineered to provide strong, reliable fastening in situations where a traditional fastener cannot be used due to limitations in access.

Jo-bolts are unique because they have a design that permits them to be installed from one side, making them highly effective in structural applications where typical fasteners may not provide the needed performance. Their capacity to endure considerable loads while being installed from one end allows for efficient assembly in challenging environments.

While Hi-shear rivets, Hi-lok fasteners, and solid shank rivets also serve important purposes in assembly, they either require access from both sides (as in the case of solid shank rivets) or are not characterized specifically as "blind" fasteners. Hence, Jo-bolts stand out as the correct choice for high strength blind structural fasteners.