Case Study: Hydraulic Fitting Nut

A quick and creative solution to save the day.

After inadvertently providing another supplier incorrect specs, a customer came to us with a rush order for 10,000 left- and right-hand threaded nuts for hydraulic fittings. And just like Mighty Mouse, Earnest Machine was there to save the day.

We decided to start with a standard hex nut that was already heat-treated, which enabled us to save time and meet the customer’s tight deadline. Because the nuts were designated for use on flared hydraulic fittings, we had to counterbore and countersink each nut with a 37.5 degree flared edge. The customer was concerned about the depth of the counterbore and countersink, so we provided production samples to test specs before completing the job.


Specifications: 1”-14 hex nut, left- and right-hand threads, counterbored and countersunk with a 37.5 degree flared edge

Quantity: 10,000

Finishing: Plain finish, heat-treated

How Earnest Helped:
Engineering consultation Source 10,000 heat-treated 1” – 14 hex nuts in left- and right-hand threads Provide production samples to test spec Rush order delivered on time Single purchase order for every step of the process