Roofing Bolts & Square Nuts - M6 x 20mm - Zinc & Clear Cr3+ - Pack Qty: 200SpecificationSize: M6 x 20mmFinish: Zinc & Clear Cr3+Diamenter: M6Length: 20mmBrand: MetalmatePack Type: BoxPack Quantity: 200Drive Type: Cross RecessHead Type: RoundPTDFORDIR1350M490020