• Hook Bolts & Square Nuts
• Listing picture is for illustration purpose only. if thread length is critical please check with us before buying.
• Zinc Plated
• Designed to be used for fastening roofing sheets but can be used in any application (Fencing & Guttering)
• The length of a Hook Bolt is measured from the end of the thread to the inside of the hook.
• Roofing Industry Standard