50 Pcs M8 x 1.25mm Serrated Flange Hex Lock Nuts, Carbon Steel 18-8, Full Thread, Hex Drive, Bright Finish, Carbon Steel Black Oxide Finished

50 Pcs M8 x 1.25mm Serrated Flange Hex Lock Nuts, Carbon Steel 18-8, Full Thread, Hex Drive, Bright Finish, Carbon Steel Black Oxide Finished

Size: Thread Diameter: M8; Thread Pitch: 1.25 ; Flange Diameter(A): 16.4mm/0.65" Width Across Flat Size (B) : 13mm/0.51"; Nut Height (M) : 7mm/0.28" Constructed from carbon steel, black oxide finish, higher corrosion resistance and anti-rust effect than ordinary nuts, longer service life, not easy to damage, more solid Self-locking serrated flange digs into the material being fastened to help prevent loosening, easy installation and provide mild vibration resistance Package Includes: 50 Pack M8 x 1.25mm Serrated Flange Hex Lock Nuts 【Material】 ‎Alloy Steel
【Fastener Type】 ‎Flange, Hex
【Thread Size】M 8
【Exterior Finish】Carbon Steel,Black
【Color】Black
【Metal Type】Carbon Steel
【Finish Type】Black Oxide
【Thread Type】Unified National Coarse
【Inside Thread Size】 ‎M8
【Thread Style】Right Hand
【Thread Coverage】Fully Threaded

【Description】
A flange nut is a nut that has a wide flange at one end that acts as an integrated, non-spinning washer. This serves to distribute the pressure of the nut over the part being secured, reducing the chance of breaking to the part and making it less likely to loosen as a result of an uneven fastening surface.

The flange may be serrated to provide a locking action. The serrations are angled such that they keep the nut from rotating in the direction that would loosen the nut. Because of the serrations, they cannot be used with a washer or on surfaces that cannot be scratched. The serrations help in avoiding the vibration of the nut and increase the holding power of the nut.