#3 OVERSIZED FLAT HEAD PLOW BOLTS GRADE 5

The “Oversized Head design provides increased engagement of the head into the Plow Blade. The increased engagement distributes the forces, which are encountered in use, over a larger area to prevent damage to the blade and the engagement hole. The larger head diameter provides a greater wear area for increased life.

The “Oversized Head Plow Bolts come threaded to the head to fit a variety of grip ranges. *Note that the Oversized Head style is not the same as the “Repair style listed in ANSI B18.9.

Earnest #3 Oversized Head Plow Bolt Tolerances

Size.	Head Diameter			Feed Thick	Depth of Square		Width of Square		Corner Rad
	A			F	S		B		CR
	Max	Min Sharp	Min	Max	Max	Min	Max	Min	Max
3/8–16	.826	.781	.766	.036	.364	.328	.450	.438	.047
7/16–14	.945	.890	.875	.042	.417	.375	.515	.500	.047

ANSIB18.9 Plow Bolt Tolerances (Regular)

Size.	Head Diameter			Feed Thick	Depth of Square		Width of Square		Corner Rad
	A			F	S		B		CR
	Max	Min Sharp	Min	Max	Max	Min	Max	Min	Max
3/8–16	.708	.671	.656	.031	.312	.281	.387	.375	.047
7/16–14	.826	.781	.766	.036	.364	.328	.450	.438	.047