Wyandotte Industries was requested to produce a custom manufactured carbon steel nylon insert locknut that would be used for a hydraulic cylinder application. Employing our Acme Gridley screw machining technology, which was able to meet tolerances as low as (±) .015 of an inch, we were able to fabricate these locknuts based off a customer supplied print to measure precisely 1-3/4 inches in overall height and 2-3/8 inches across flats or OD.

Wyandotte Industries tapped all 1 ½-12(3B) threads for these locknuts. We also added all nylon inserts. Each nut possessed a 125 microfinish. To ensure that the locknuts met client specifications, we performed a series of in-process inspections and examined the thread fit, proofload, and prevailing torque of each nut. Once we were assured that these custom manufactured nuts satisfied all of our client’s unique product requirements, we delivered our customer’s hydraulic cylinder nuts to their facility in the midwest.

Product Description

This Nylon Insert Locknut is used within a hydraulic cylinder application

Capabilities Applied/Processes

Screw Machining
Insertion of Nylon Insert

Equipment Used to Manufacture Part

Acme Gridley Screw Machines
Tapping Equipment

Overall Part Dimensions

1 ½-12(3B) Thread, 2 3/8” Hex Size (Across Flats or OD).
1 3/4” Overall Height

Tightest Tolerances

± .015”

Material Used

Medium Carbon Steel

Max Material Finish

125 Microfinish

In Process Testing/Inspection Performed

Thread Fit
Prevailing Torque
In process inspection

Estimated Part Weight

1.250 lbs each.

Industry for Use

Hydraulic Cylinder Industry

Delivery Location


Standards Met

Customer supplied print
IFI 100/107

Product Name

Custom Nylon Insert Locknut