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M4 Wedge-Type Quick Ferrule - 7/16" - 9/16" Wire Rope

M4 Wedge-Type Quick Ferrule - 7/16" - 9/16" Wire RopeM4 Wedge-Type Quick Ferrule - 7/16" - 9/16" Wire RopeM4 Wedge-Type Quick Ferrule - 7/16" - 9/16" Wire Rope
SKU: QN-L797
  • USUALLY SHIPS: 1 - 2 Days
  • Made in Canada

Product Description

Quick and easy to install, wedge-type quick ferrules (aka "Quick Nub") feature manganese bronze two-piece wedges and work well with common 6-strand wire rope. The two-piece wedge grips all strands of wire rope evenly under load. Ferrules and wedges are reusable many times, but wedges can be purchased separately as needed. Color-coded for size, please be sure to match the right size quick ferrule for your application. And contact us for help if needed by calling 800-442-7454!

  • Used to repair or replace the nub end on wire rope, installs easily in the field in just minutes
  • Often used to repair a winch line or make chokers in the field
  • No special tools required
  • No molten socket metal and no swaging required
  • Ferrule (nub casing) is made of steel, wedges are made of bronze
  • Spiraled wedges are made to fit specific size and type of wire rope


Frame Size
Wire Rope Size
7/16" - 9/16"
Steel / Bronze
Weight (lbs)

Questions & Answers

2 Questions & 2 Answers
from Moncton asked:
December 17, 2018
I have a Wallenstein log winch with 3/8" wire rope. Is the M4 a good size of ferrule and wedge for that size of wire? I don't see smaller than 7/16"
1 Answer
We cannot recommend the M4 for your application. It "might" work, but is not designed for use with 3/8" cable.
Submitted by: WRS on December 18, 2018

from Holmen, WI asked:
March 2, 2018
M4, D4 and D5 wedges are all for same size cable. What are the advantages of each?
1 Answer
Quick nub assemblies are called out by their alphanumeric code. "M" stands for "Midget" while "D" stands for Dwarf. Midget is smaller than dwarf. The number "4" generally means 1/2", but can be used for additional sizes. The number "5" generally means 5/8", but is often used for 9/16" swaged since swaged cable tends to be a little oversized.

One size is not better or advantageous, it's simply a matter of fit. If you're running regular cable from 7/16" - 9/16", then you can choose between the midget and dwarf sizes--M4 and D4 respectively. Most choker hooks are midget-based, meaning they work with midget nubs, so the M4 would be the right choice.

If you're running regular 5/8" line, most use a D5 dwarf nub. For 5/8" swaged, many use a B5 which is larger and accepts the oversized line better ("B" stands for Bantam).
Submitted by: Westech Rigging Supply on March 2, 2018

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Although Westech Rigging Supply strives to manufacture and sell the highest quality rigging and safety gear, use of the gear is dangerous if not used correctly by competent trained professionals. Westech Rigging Supply disclaims any liability resulting from the misuse of its rigging and safety gear. Please take a moment to more thoroughly review our disclaimer.

Westech Rigging Supply rigging and safety gear is only intended to be used by competent trained professionals. Misuse of the rigging and safety gear can result in serious injury up to and including loss of life. As such, Westech Rigging Supply disclaims liability for any misuse or incorrect product selection by our customers.

Rigging and safety gear purchased from Westech Rigging Supply should be used in strict accordance with all industry and OSHA standards. At no time should rigging or safety gear be used beyond its certified load ratings (aka Working Load Limits). Normal wear and tear should be expected with use of rigging and safety gear; therefore, all gear should be thoroughly inspected before each and every use. Worn or unsafe rigging and safety gear should never be used.