5/16-18 Serrated Flange Hex Lock Nuts Grade 8 Black Phosphate 1 1/8-7 These nuts feature a serrated

These nuts feature a serrated flange that bites into the mating surface

M20 x 80 DIN 931 8

The nut has a 7/16-20 thread size and a castellated design

It has a round head with a square neck that fits into a square hole in the material being fastened

and the 11 threads per inch ensure a tight fit

5/16-18 Serrated Flange Hex Lock Nuts Grade 8 Black Phosphate 1 1/8-7 These nuts feature a serrated5 16 18 Serrated Flange Hex Lock Nuts Grade 8 Black Phosphate are designed to provide a secure and reliable connection in demanding applications. These nuts feature a serrated flange that bites into the mating surface, preventing loosening due to vibration or movement. The hex head allows for easy installation and removal using a standard wrench. The Grade 8 rating indicates high strength and durability, making them suitable for use in critical