Easy
Less than 15 minutes
This is an original Craftsman replacement part manufactured for use with lawn and garden equipment. The wing knob acts as a nut to fasten bolts. This wing knob is a versatile part that is used on lawnmowers, and snowblowers. The wing knob usually secures the bolt that fastens the upper and lower handles, please see model diagram for part location. The wing knob is sold individually.
Knob-wing 5/16-18 720-04122
OEM part for: MTD, Bolens, Yard Man
Part Number: 720-04122
$8.36
In Stock
Ships within 1 business day 
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Compatibility
This Knob-wing 5/16-18 will fit the following 1027 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 1027 matching models.
1027 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Bolens
- Craftsman
- Cub Cadet
- Husky
- MTD
- Murray
- Troy-Bilt
- Yard Machines
- Yard Man
This item works with the following types of products:
- Lawn Mower
- Lawn Tractor
- Snowblower
- Trimmer
Customer Part Reviews ?
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Straightforward repair
Perfect condition upon arrival.
Guest -
September 8, 2022
Verified Purchase
I absolutley love them. And the price was great Thank you.
everything works great.
Guest -
August 11, 2020
Verified Purchase
Service
Excellent service !!
Fast Delivery and parts were exactly what i needed and were perfect Fit
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7 days ago
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Molded nut came unattached from the "wing"
Kenneth - September 23, 2023
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set
Parts Used
Removed nut with wrench and attached Wing Nut.
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Carriage screw broke
Carl - June 16, 2023
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, No tools required
Discarded broke screw and replaced with new screw and wing nut, tighten to secure handle to mower
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Blade hit plastic mulch plug destroying it. Mechanic had left part of deck unattached to tractor.
Keneth - January 2, 2023
Tool Type
Lawn Tractor
Difficulty
Medium
Time
15-30 minutes
Tools Used
, Bare hands.
Removed wing nut. Removed damaged mulch plug. Installed new mulch plug and retainer wire. Secured with new wing nut. Done.
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handle wing screw melted to the carriage bolt, not allowing for removal.
James - September 10, 2022
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Hacksaw.
I removed the wing screw from the handle by hack sawing through the old wing knob. Then plied off the plastic from the carriage bolt, and installed the new handle wing knob securely clockwise. I figured the carriage screw threads had probably smoothed over after repeated removal in the past. The wing knob wouldn't allow me to unscrew the bolt. That is why I needed the hack saw.
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nut separated from rubber wing
Alfred - August 21, 2019
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
, chisel, hammer, socket wrengh
Parts Used
1. used chisel to split rubber wing
2 Removed wing from nut
3.removed nut with socket wrench and replaced with new wing nut
2 Removed wing from nut
3.removed nut with socket wrench and replaced with new wing nut
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Lawn mower bagger did not have rod for attachment to mower
Sara - July 30, 2018
Tool Type
Lawn Mower
Difficulty
Medium
Time
15-30 minutes
Tools Used
Pliers, Socket set
Screwed attachment rod to bagger tube with socket wrench and pair of pliers
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Replaced missing and worn parts
Geno - December 8, 2016
Tool Type
Lawn Mower
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Wrench Set
Simply replaced missing parts and then replaced all others with the NEW replacement parts.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
