Keith-
What you are looking for are called Stover nuts. That's what IH used on the bolts holding the engine mount rails. They're not as tall as a nylock nut.
McMaster-Carr is a wonderful source for hardware and in my opinion is a top notch online store. They charge very reasonable rates for shipping and most times you get your order within two days. I've ordered stuff on a Monday and got it Tuesday...the next day.
What you are looking for are called Stover nuts. That's what IH used on the bolts holding the engine mount rails. They're not as tall as a nylock nut.
McMaster-Carr is a wonderful source for hardware and in my opinion is a top notch online store. They charge very reasonable rates for shipping and most times you get your order within two days. I've ordered stuff on a Monday and got it Tuesday...the next day.