M5 M6 M8 M10 ROOFING BOLTS & SQUARE NUTS CROSS SLOTTED DOME HEAD SCREWS ZINC BZP
Roofing Bolts complete with Square Nuts. Includes Square Nut: Each bolt is supplied with a matching square nut for stability. Thread Pitch: 0.8mm. Thread Pitch: 1.0mm. Longer bolts have a partially threaded shank for added strength.