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Repair Parts Home  Lawn Equipment Parts  Ryobi Parts  678018001 Lock Nut

Lock Nut 678018001

OEM part for: Ryobi, Homelite

Part Number: 678018001


Install
Videos!
Grid squares measure 1x1 inch
In Stock
Ships within 1 business day
Easy 15-30 minutes (6 rated repairs)?
OEM: Original Equipment Manufacturer ?
RyobiHomelite
Does this d-block d-md-none fit my product?

Product Description ?

This is a Manufacturer Sourced replacement part for Lawn and Garden equipment. This item is Metal an is Sold Individually. A lock nut is a type of nut that resists loosening when properly threaded onto a bolt. This Locking Nut secures the cutting blade on the Trimmers/Brushcutters.

You would need a Wrench to tighten or loosen this Hex Nut.

  • Classification: Part
  • Weight: 0.01 lbs.
  • Shipping: Ships Worldwide

Frequently Purchased Together ?

Compatibility

This part will fit the following 155 machines

Ryobi

BC30 (RY30004) 30cc Brushcutter View Diagrams & Manuals
BC30 (RY30004A) 30cc Brushcutter View Diagrams & Manuals
RY30060A 30cc Brushcutter View Diagrams & Manuals
RY30060B 30cc Brushcutter View Diagrams & Manuals
BC30 (RY30061A) 30cc Brushcutter View Diagrams & Manuals
RY30063 30cc Brushcutter View Diagrams & Manuals
BC30 (RY30160) 30cc Brushcutter View Diagrams & Manuals
RY30260 30cc Brushcutter View Diagrams & Manuals
RY30260B 30cc Brushcutter View Diagrams & Manuals
RY30564 30cc Brushcutter View Diagrams & Manuals
RY30570 30cc String Trimmer and Brushcutter View Diagrams & Manuals
RY70105 Straight Shaft Trimmer View Diagrams & Manuals
RY70105A Straight Shaft Trimmer View Diagrams & Manuals
RY70107 Straight Shaft Trimmer View Diagrams & Manuals
RY70107A Straight Shaft Trimmer View Diagrams & Manuals
RY30060 30cc Brushcutter View Diagrams & Manuals
RY26540 Brush Cutter View Diagrams & Manuals
RY26941 Brush Cutter View Diagrams & Manuals
RY15518 Edger Attachment View Diagrams & Manuals
RY15702 Brushcutter Attachment View Diagrams & Manuals
RY30963 30cc String Trimmer View Diagrams & Manuals
RY30562 30cc String Trimmer View Diagrams & Manuals
51992 (260000001) String Trimmer View Diagrams & Manuals
RY08420 Blower/Vacuum View Diagrams & Manuals
RY08420A Backpack Blower View Diagrams & Manuals
RY28060 26CC Brush Cutter View Diagrams & Manuals
RY28065 26CC Brushcutter View Diagrams & Manuals
RY28160 26CC Brushcutter View Diagrams & Manuals
RY28161 26CC Brushcutter View Diagrams & Manuals
RY30004 RY30004 30CC Brushcutter View Diagrams & Manuals
RY30004A RY30004A 30CC Brushcutter View Diagrams & Manuals
RY30061A RY30061A 30CC Brushcutter View Diagrams & Manuals
RY30063 (BC30) 30cc Brushcutter View Diagrams & Manuals
RY30060 (BC30) 30cc Brushcutter View Diagrams & Manuals
RY254BCVNM Ry254bcvnm 25.4cc Brush Cutter Mfg. No. 095333110 4-5-21 (Rev:02) View Diagrams & Manuals
RYBRC77VNM Rybrc77vnm Expand-It Brush Cutter Attachment Mfg. No. 095109101 8-10-21 (Rev:04) View Diagrams & Manuals

Homelite

B25S (UT-15182) Trimmer View Diagrams & Manuals
UT15198 (BC1600) Trimmer View Diagrams & Manuals
BC2500AZ (UT-15205) Trimmer View Diagrams & Manuals
UT15512 (BCA250) Trimmer View Diagrams & Manuals
EA250 (UT15513) Trimmer View Diagrams & Manuals
UT15200 (BC2500R) Trimmer View Diagrams & Manuals
BC3000 (UT-15099-R) Trimmer View Diagrams & Manuals
BC800 (UT-15183) Trimmer View Diagrams & Manuals
BC800 (UT-15184) Trimmer View Diagrams & Manuals
BC900 (UT-15166) Trimmer View Diagrams & Manuals
BC900 (UT-15172) Trimmer View Diagrams & Manuals
UT-70026 Trimmer View Diagrams & Manuals
UT20711 (D825CA) Trimmer View Diagrams & Manuals
D825CA (UT-20736) Trimmer View Diagrams & Manuals
UT15165 (D825SB) Trimmer View Diagrams & Manuals
UT15170 (D825SB) Trimmer View Diagrams & Manuals
UT-20712 Expand-It 3 in 1 String Trimmer View Diagrams & Manuals
UT-20710 Expand-it Plus String Trimmer View Diagrams & Manuals
UT-20681 Expand-it String Trimmer View Diagrams & Manuals
UT-20681-A Expand-it String Trimmer View Diagrams & Manuals
UT-20735 Expand-it String Trimmer View Diagrams & Manuals
F2040 (UT-20791) String Trimmer View Diagrams & Manuals
F3040 (UT-15176) String Trimmer View Diagrams & Manuals
F3050 (UT-15179) String Trimmer View Diagrams & Manuals
UT15084B GSTBC String Trimmer View Diagrams & Manuals
UT15084C GSTBC String Trimmer View Diagrams & Manuals
HBC28 (UT-15096) String Trimmer View Diagrams & Manuals
HBC28 (UT-15097) String Trimmer View Diagrams & Manuals
HBC30 (UT-15071-1) String Trimmer View Diagrams & Manuals
HBC30 (UT-15071-A) String Trimmer View Diagrams & Manuals
HBC30 (UT-15085-A) String Trimmer View Diagrams & Manuals
HBC30B (UT-15086-A) String Trimmer View Diagrams & Manuals
UT-50500 Edger View Diagrams & Manuals
UT-50901 Edger View Diagrams & Manuals
UT-20581-3 (ST285BC) String Trimmer View Diagrams & Manuals
UT-20581-C (ST285BC) String Trimmer View Diagrams & Manuals
UT-20581-E (ST285BC) String Trimmer View Diagrams & Manuals
UT-20598-1 (ST285BC) String Trimmer View Diagrams & Manuals
UT-20615 (ST285BC) String Trimmer View Diagrams & Manuals
UT15084 (GSTBC) String Trimmer View Diagrams & Manuals
UT15084A (GSTBC) String Trimmer View Diagrams & Manuals
UT15180 (K400) Zip Start Trimmer View Diagrams & Manuals
UT15181 (K400) Zip Start Trimmer View Diagrams & Manuals
UT15169 (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT15518F Expand-It Edger Attachment View Diagrams & Manuals
UT15121 (T30S) Gas Trimmer View Diagrams & Manuals
UT15164 (Versa Tool) Trimmer View Diagrams & Manuals
UT70127 Straight Shaft Trimmer View Diagrams & Manuals
UT70127A Straight Shaft Trimmer View Diagrams & Manuals
UT70129 Straight Shaft Trimmer View Diagrams & Manuals
UT70129A Straight Shaft Trimmer View Diagrams & Manuals
UT70131 Straight Shaft Trimmer View Diagrams & Manuals
UT70131A Straight Shaft Trimmer View Diagrams & Manuals
UT15702B Expand-It Brush Cutter View Diagrams & Manuals
ST385 (UT-15045) String Trimmer View Diagrams & Manuals
ST385 (UT-15045-2A) String Trimmer View Diagrams & Manuals
ST385 (UT-15059) String Trimmer View Diagrams & Manuals
ST385 (UT-15059-A) String Trimmer View Diagrams & Manuals
ST385 (UT-15061) String Trimmer View Diagrams & Manuals
ST385 (UT-15061-A) String Trimmer View Diagrams & Manuals
ST385 (UT-15070) String Trimmer View Diagrams & Manuals
ST385 (UT-15078) String Trimmer View Diagrams & Manuals
ST385 (UT-15088-A) String Trimmer View Diagrams & Manuals
ST385 (UT-15088-B) String Trimmer View Diagrams & Manuals
ST385BC (UT-15040-1) String Trimmer View Diagrams & Manuals
ST385BC (UT-15040-E) String Trimmer View Diagrams & Manuals
ST385BC (UT-15040-H) String Trimmer View Diagrams & Manuals
ST385BC (UT-15040-J) String Trimmer View Diagrams & Manuals
ST385BC (UT-15040-K) String Trimmer View Diagrams & Manuals
ST385BC (UT-15042-E) String Trimmer View Diagrams & Manuals
ST385BC (UT-15059-B) String Trimmer View Diagrams & Manuals
ST385C (UT-15042) String Trimmer View Diagrams & Manuals
ST385C (UT-15042-A) String Trimmer View Diagrams & Manuals
ST385C (UT-15042-B) String Trimmer View Diagrams & Manuals
ST385C (UT-15042-C) String Trimmer View Diagrams & Manuals
ST385C (UT-15042-D) String Trimmer View Diagrams & Manuals
ST385i (UT-15173) String Trimmer View Diagrams & Manuals
UT-15085-B HBC30 String Trimmer View Diagrams & Manuals
UT-15085-C HBC30 String Trimmer View Diagrams & Manuals
UT-20595-3 HLT28 String Trimmer View Diagrams & Manuals
UT-15089-B PBC3600 String Trimmer View Diagrams & Manuals
UT-15089-C PBC3600 String Trimmer View Diagrams & Manuals
UT-15089-D PBC3600 String Trimmer View Diagrams & Manuals
UT-15089-E PBC3600 String Trimmer View Diagrams & Manuals
UT-15089-R PBC3600 String Trimmer View Diagrams & Manuals
UT-15091-A PBC3600-B String Trimmer View Diagrams & Manuals
UT-15091-B PBC3600-B String Trimmer View Diagrams & Manuals
UT-15091-C PBC3600-B String Trimmer View Diagrams & Manuals
UT-15091-D PBC3600-B String Trimmer View Diagrams & Manuals
UT-15091-E PBC3600-B String Trimmer View Diagrams & Manuals
UT-15091-F PBC3600-B String Trimmer View Diagrams & Manuals
UT-15090-B PLT3400 String Trimmer View Diagrams & Manuals
UT-15090-C PLT3400 String Trimmer View Diagrams & Manuals
UT-15090-D PLT3400 String Trimmer View Diagrams & Manuals
UT-15090-E PLT3400 String Trimmer View Diagrams & Manuals
UT-20610-C PSE3000 String Trimmer View Diagrams & Manuals
UT-20610-R PSE3000 String Trimmer View Diagrams & Manuals
UT-20594-1A ST275 String Trimmer View Diagrams & Manuals
UT-20594-2A ST275 String Trimmer View Diagrams & Manuals
UT-20542-A ST285 String Trimmer View Diagrams & Manuals
UT-20542-B ST285 String Trimmer View Diagrams & Manuals
UT-20546-A ST285 String Trimmer View Diagrams & Manuals
UT-20546-B ST285 String Trimmer View Diagrams & Manuals
UT-20567 ST285 String Trimmer View Diagrams & Manuals
UT-20576 ST285 String Trimmer View Diagrams & Manuals
UT-20581-A ST285 String Trimmer View Diagrams & Manuals
UT-20581-B ST285 String Trimmer View Diagrams & Manuals
UT-15061 ST385 String Trimmer View Diagrams & Manuals
UT-15061-A ST385 String Trimmer View Diagrams & Manuals
UT-15088-A ST385 String Trimmer View Diagrams & Manuals
UT-15088-B ST385 String Trimmer View Diagrams & Manuals
UT-15040-1 ST385BC String Trimmer View Diagrams & Manuals
UT-15040-E ST385BC String Trimmer View Diagrams & Manuals
UT-15040-H ST385BC String Trimmer View Diagrams & Manuals
UT-15040-J ST385BC String Trimmer View Diagrams & Manuals
UT-15040-K ST385BC String Trimmer View Diagrams & Manuals
UT-15048 ST485 String Trimmer View Diagrams & Manuals
UT-15178 ST725 String Trimmer View Diagrams & Manuals
UT-15153 ST725SC String Trimmer View Diagrams & Manuals
Show More Compatible Models
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This item works with the following types of products:

  • Trimmer Parts
  • Edger Parts
  • Blower Parts
  • Vacuum Parts

This part replaces obsolete part #: 4277, 04277, UP04127

Customer Part Reviews ?

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  • Left-hand threaded nut for lawn trimmer.
    The left-hand threaded nut arrived quickly. It was a perfect fit. It restored the trimmer so that it operated normally. Very pleased!
    Guest - October 18, 2023 Verified Purchase
    Trimmer accessory lock nut
    Thanks I got that part that I needed and now it is installed
    Guest - April 5, 2023 Verified Purchase
    Easy repair
    Perfect
    Guest - April 4, 2023 Verified Purchase
    Perfect part
    This part was exactly what I ordered and shipped quickly
    Glenn - March 29, 2023 Verified Purchase
    Easy repair. Perfect fit!
    Item came quickly in perfect condition.
    Guest - September 6, 2022 Verified Purchase
    Parts for Ryobi
    Love this site. Easy to figure out the parts I need to keep my tools like new.
    Peter - July 4, 2022 Verified Purchase
    Perfect
    Part is perfect weed eater is working
    Guest - April 6, 2021 Verified Purchase
    t
    t
    t - t days ago Verified Purchase
    eReplacementParts Team
    t

    Questions & Answers ?

    Our customer Service team is at the ready daily to answer your part and product questions.

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    Questions & Answers for Lock Nut


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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.

    Easy 15-30 minutes (6 rated repairs)?

    the nut striped

    Charles - November 6, 2022
    Tool Type

    Trimmer

    Difficulty

    Easy

    Time

    15-30 minutes

    Tools Used

    Screwdriver, Nutdriver

    removed the old parts
    replace the gear box with the new unit
    installed the new cutting blade
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    Lock nut was stripped.

    John - July 14, 2020
    Tool Type

    Edger

    Difficulty

    Easy

    Time

    Less than 15 minutes

    Tools Used

    Screwdriver, Socket set

    Used a dremel tool to cut the damaged lock nut off.
    Then I replaced the edger blade.
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    Missing hardware.

    John - July 22, 2017
    Tool Type

    Blower

    Difficulty

    Easy

    Time

    15-30 minutes

    Tools Used

    Screwdriver, Pliers, Socket set, Nutdriver

    Replaced the parts.
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    Lost the lock nut which holds the blade on

    Thomas - November 22, 2016
    Tool Type

    Trimmer

    Difficulty

    Hard

    Time

    More than 2 hours

    Tools Used

    Socket set

    Just placed the rear flange on the spindle , followed by the blade, cupped washer and the nut.
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    Lock nut was damaged

    Dan - June 9, 2016
    Tool Type

    Edger

    Difficulty

    Easy

    Time

    Less than 15 minutes

    Tools Used

    Socket set

    Took off the old nut and put on the new. Very simple
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    Added brush cutter to weed eater

    JAMES - August 22, 2017
    👍 0 of 1 people found this instruction helpful
    Tool Type

    Trimmer

    Difficulty

    Easy

    Time

    15-30 minutes

    Tools Used

    Wrench Set

    Disassembled string head and assembled cutter
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.

    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.

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