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Roofing Bolts

The most commonly used bolts in the roofing trade. See our Roofing & Cladding section for more roofing fasteners.

2 Item(s)

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  • Hook Bolts with Nut - Yellow Zinc Plated YZP

  • Cross-Slotted Mushroom Head Roofing Bolts & Square Nuts - BZP

2 Item(s)

per page

Hook (or 'J') bolts are generally used for fastening roof sheet. They are designed to hook around a purlin, which prevents them from rotating as the nut is tightened. Mushroom head cross-slot roofing bolts have a large flat head to securely fasten a range of roofing materials. Both kinds of bolts are usually used with square nuts, and both must be used with sealing washers and covers to keep out water.