1/2-13 x 2 1/2 Serrated Hex Flanged Washer Full Thread Grade 8 w/Head Markings Zinc 07NCUP5 preventing them from rotating or

preventing them from rotating or loosening

They feature a Phillips drive and an undercut head that allows them to be countersunk into wood or other materials

5 x 30 DIN 6921 Class 10

The self-tapping design allows for easy installation without the need for pre-drilling

while the 10-24 thread size ensures a tight fit

1/2-13 x 2 1/2 Serrated Hex Flanged Washer Full Thread Grade 8 w/Head Markings Zinc 07NCUP5 preventing them from rotating orThis 1 2 13 x 2 1 2 Serrated Hex Flanged Washer Full Thread Grade 8 with Head Markings Zinc is a high strength fastener designed for demanding applications. The serrated flange provides a secure grip on the mating surface, while the full thread allows for maximum engagement with the mating material. The Grade 8 rating indicates that the fastener is made from high quality steel and has been heat treated for increased strength and durability. The head