1/4-28 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc And Bake C188 DIN 931 is the German

DIN 931 is the German standard for cap screws

It has a hex head and a 5" length

Its flange head distributes the load evenly

Grade 8 bolt with a zinc yellow finish

Designed with a hexagonal head

1/4-28 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Zinc And Bake C188 DIN 931 is the GermanThese 1 4 28 serrated flange hex lock nuts are made of case hardened HR15N steel and have a 78 90 zinc and bake finish. They are designed to provide a secure and vibration resistant connection in a variety of applications. The serrated flange helps to prevent the nut from loosening due to vibration, while the hex head allows for easy installation and removal. These nuts are ideal for use in automotive, construction, and other industrial applications.