ROOFING BOLTS WITH SQUARE NUTS CROSS SLOTTED DOME HEAD SCREWS ZINC M5 M6 M8 M10

Roofing Bolts & Square Nuts. Each bolt is supplied with one square nut. Manufactured from zinc plated steel. Thread pitch; 0.8mm. Thread pitch; 1.0mm. Thread pitch; 1.25mm. Thread pitch; 1.5mm. Head height; 2.7mm.

eBay