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Dorman 784-750D Hex Lock Nuts with Nylon Insert Grade - 1/4-20 2

Part of: Dorman Hex Lock Nut with Nylon Insert Grade

Other options in this family: Dorman 784-758D Dorman 251014 Dorman 810-044 Dorman 814-044 Dorman 810-041

Manufacturer

Picture for manufacturer Dorman

Part Number

784-750D
6 reviews
Sale Price

$3.50

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Dorman 784-750D hex lock nuts feature a nylon insert ring that provides reliable thread locking and vibration resistance for automotive, marine, and general fastening applications. These Grade 2 steel lock nuts are designed to prevent loosening under stress and vibration, making them ideal for suspension components, engine mounts, and body hardware installations.

Key Specifications:

  • Thread size: 1/4-20 UNC (Unified National Coarse)
  • Height: 5/16 inch
  • Grade 2 steel construction for reliable strength
  • Nylon insert ring locks threads without thread damage
  • Hex design for standard wrench or socket installation
  • Reusable for multiple installations

The nylon ring insert deforms to grip the mating threads, creating a prevailing torque that resists loosening from vibration and shock loads. These lock nuts meet automotive-grade standards and provide a cost-effective solution for securing critical fasteners where thread locking is required.

Products specifications

Callout Size

1/4-20 in; Height: 5/16 in

Height

0.32 in

Heat Hardened

Yes

SAE or Metric

SAE

Locking

Yes

Thread Direction

Clockwise

Finish

Clear Zinc

Washer Attached

No

inside Diameter

1/4

Head Tool Size

1/4-20 in

Thread Type

Coarse

Material

Steel

Metric Or SAE

SAE

Thread Size

1/4-20 in

Nut Grade

Grade 2

Thread Pitch

1/4-20 in

Package Contents

4 Nuts

great

EASY TO SEARCH

Quick and easy online shopping and check out. Shipping took long because it had to come from a manufacturer. Also considering the part was small shipping costs seemed high. Everything arrived in order though and part seems just right.

Great prices with products and shipping

great store to deal with shipping is a little high but good at keeping me updated on my order

great prices

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