M5 Flange Metal Locking Nut 8mm Spanner Size Zinc PlatedAlso know as Fuji-nut U-nut Stable-nut E-lock nut or Read lock nut0.80mm PitchMax Torque 4.25 lb-ft or 5.75NmGrade 8.8M5 Flange Metal Locking Nut Zinc PlatedSKU: 920151752£0.58PriceQuantity*Add to CartBuy NowDetailsUsed on bolts where a lock nut is advised