Easy
Less than 15 minutes
This replacement part is supplied from original equipment manufacturer. It is designed for use with Echo edgers/trimmers. The purpose of this nut is to secure blade to the unit. This left hand thread nut is sold individually. Please only use properly sized wrench to install/remove it.
Nut 10 90051100010
OEM part for: Echo
Part Number: 90051100010
$5.19
In Stock
Ships within 1 business day 
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Compatibility
This Nut 10 will fit the following 337 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
- Edger Parts
- Trimmer Parts
This part replaces obsolete part #: 90051100011
Repair Videos ?
Articles:
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Filthy Filters? This article will show you how to install a filter kit on an Echo SRM-225 trimmer....
May 27, 2015
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Customer Part Reviews ?
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Hex nut for string trimmer head
I had a very daunting task of locating a left hand metric thread hex nut to secure my string trimmer head. After many web searches and interviews, I located this company and they gave me exactly what I needed and were very pleasant to deal with as a new customer. I would definitely recommend this firm to anyone faced with a challenging landscaping equipment application.
Guest -
May 10, 2023
Verified Purchase
Great part
Exactly what was ordered left handed threaded but. Escekkent quality and got here in time. Thanks!
Guest -
September 8, 2022
Verified Purchase
trimmer part
Perfect fit for my trimmer
Guest -
September 22, 2020
Verified Purchase
great service
shipping was fast and product was as described.Would do buisness with them again !
Guest -
May 1, 2020
Verified Purchase
Difficult part to find
Reverse thread nut is not available at the hardware store. I was happy to find ereplacement parts on line. Easy to order, quick delivery.
Guest -
July 8, 2019
Verified Purchase
Great part, great service
This part was exactly what I needed. Arrived promptly after I ordered it!
Guest -
May 9, 2019
Verified Purchase
Lost parts to attach blade to weedeater
Always go here when I need parts for power equipment, great website.
Gregory -
April 30, 2019
Verified Purchase
Not same as original
I remember the original being a castellated nut, so that the cotter pin locks the nut in place to hold the brush blade in.. nut is also on the short side and seats will below the cotter pin hole, might need to add a washer to take up the space, will need to tighten with a socket, not an open end wrench as the top of the nut is almost flush with the Fixture-Blade Part Number: C535000150
Guest -
October 22, 2019
Verified Purchase
Questions & Answers ?
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Does this fit my product?Questions & Answers for Nut 10
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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.
Lost important parts, that hold the string trimmer head/blade.
John - August 3, 2023
👍 1 of 2 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
1) Removed nut from trimmer string holder. 2) Removed trimmer sting holder, fixture-blade, and plate adapter-upper. 3) Reinstalled with new parts.
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changed trimmer from line to blade
william - January 10, 2019
👍 1 of 2 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers, Adjustable Wrench, gloves
just changed the line trimmer head to a chainsaw blade. left hand threads
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Primer bulb broke
Art - April 19, 2017
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Wrench Set
Replaced the primer bulb, removed and installed the fuel system.
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The stable bar was bent lost strew
Gary - July 15, 2016
Tool Type
Edger
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
Parts Used
By putting on the blade cover with nut and inserting the cottage key
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Nothing
Bruce - September 13, 2020
👍 0 of 1 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
Parts Used
I put a blade on it all I need it was a nut and adapt
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Missing nut for saw arbor
Stephen - May 24, 2018
👍 0 of 1 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
Parts Used
Put saw blade and arbor on.
Jam a bolt in arbor lock.
Spin on left handed nut.
Jam a bolt in arbor lock.
Spin on left handed nut.
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Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
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.
