Dexter 5/8-18 90 Degree Cone Nut, Grade 8 Zinc Plated Trailer Axle Spindle Nut, Part 006-109-00

The Dexter 006-109-00 is a 90 degree cone nut sized for 5/8-18 threaded trailer axle spindles. It is used to secure and preload the wheel bearing assembly on the spindle end of a boat trailer axle, seating against the bearing race to hold proper bearing adjustment as the wheel rotates. The nut is manufactured to Grade 8 strength and finished with zinc plating for corrosion resistance in wet and road-salt trailer environments, making it a common replacement item during hub, bearing, or spindle service.

This cone nut measures 1.06 inches across the flats, so it accepts a standard wrench or socket sized to that dimension for installation and torque. It is sold individually and is intended as a direct fit for axles using a 5/8-18 threaded spindle with a 90 degree cone-style bearing nut, the same style used across Dexter's light duty trailer axle line.

Specifications

• Brand: Dexter
• Manufacturer Part Number: 006-109-00
• Product Name: Cone Nut
• Thread Size: 5/8-18
• Nut Style: 90 degree cone
• Across Flats: 1.06 inches
• Grade: Grade 8
• Finish: Zinc plated
• Weight: 0.1 pounds
• Category: Boat Trailer Brakes

Fitment

Fits trailer axles with a 5/8-18 threaded spindle designed for a 90 degree cone nut.

Frequently Asked Questions

What thread size does the Dexter 006-109-00 cone nut fit? The Dexter 006-109-00 is sized for a 5/8-18 threaded trailer axle spindle.

What wrench size do I need to install this nut? This cone nut measures 1.06 inches across the flats, so a wrench or socket sized to 1.06 inches is needed for installation.

What is a 90 degree cone nut used for? A 90 degree cone nut seats against the wheel bearing race on a trailer axle spindle to hold proper bearing preload and adjustment as the wheel rotates, which is the function of the Dexter 006-109-00.

What material and finish is the 006-109-00 cone nut made of? It is a Grade 8 nut with a zinc plated finish, chosen for strength and corrosion resistance in trailer wheel-end service.

How much does this cone nut weigh? The Dexter 006-109-00 cone nut weighs 0.1 pounds.

Is this cone nut sold as a single unit or in a set? The Dexter 006-109-00 is sold as a single individual cone nut.

Will this cone nut fit any trailer axle spindle? It fits axle spindles that use a 5/8-18 thread with a 90 degree cone nut style; check your spindle thread size and nut style before ordering.

When would I need to replace this cone nut? The 006-109-00 is typically replaced during wheel bearing service, hub repack, or spindle work where the original cone nut is worn, damaged, or removed for disassembly.

Is the Dexter 006-109-00 an OEM or aftermarket part? The 006-109-00 is a genuine Dexter part manufactured for Dexter trailer axle applications.

Does this nut come with a matching washer or cotter pin? The Dexter 006-109-00 listing covers the cone nut only; washers, cotter pins, or other hardware are not included.