Roofing Bolts with Square Nuts - Zinc M6 x 100 Manufactured with a large flat head, which distributes the load across the fixing to increase the clamping effectiveness. Making it ideal for clamping thin sheet metal, plastic and wood. Recess Type Cross Corrosion Rating (1-5) 1 - Clean, dry & low humidity environments MOQ 1 Thread Type Metric MOQ Increment 1 Finish Zinc Nut Size (mm) M6 Material Carbon Steel Thread Ø (mm) M6 Substrates Hardwood, Softwood, Plastic, Steel, Thin Sheet Metal Point Type B Point Nut Socket Size (mm) 11 Included Items M6 Square Nuts Head Ø (mm) 14 Head Type Dome Nut Type Square Size (mm) M6 x 100 Thread L (mm) 100 Thread Coverage Fully Threaded