Easy
Less than 15 minutes
This is an authentic Husqvarna replacement screw that is commonly used on a variety of chainsaws, trimmers and brushcutters. It is a standard hardware which has multiple applications depending on your tool. Always make sure to check appropriate diagrams for correct location and use of this part. Please note, this screw has a hex socket head and it is sold individually.
Screw 503217520
OEM part for: Husqvarna
Part Number: 503217520
$6.21
In Stock
Ships within 1 business day 
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Compatibility
This Screw will fit the following 450 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 450 matching models.
Husqvarna
Show More Compatible Models450 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Husqvarna
- Jonsered
This item works with the following types of products:
- Chain Saw
- Hedge Trimmer
- Pole Saw
- Saw
- Trimmer
Customer Part Reviews ?
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Hard to find part locally. Easy online order, quick shipping and delivery.
Exact fit for my chainsaw. Back to work in a few moments.
Guest -
July 21, 2020
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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.
Missing Parts From Manufacturer
Robert - January 16, 2019
Tool Type
Chain Saw
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Chainsaw Wrench
Parts Used
1) Removed Brake / Clutch cover
2) Removed Bar & Chain
3) Installed Inner Spike and Screws
4) Replaced Bar & Chain
5) Re-Installed Brake / Clutch Cover Loosely
6) Set Chain Tension
7) Tightened Brake / Clutch Cover
Done.
2) Removed Bar & Chain
3) Installed Inner Spike and Screws
4) Replaced Bar & Chain
5) Re-Installed Brake / Clutch Cover Loosely
6) Set Chain Tension
7) Tightened Brake / Clutch Cover
Done.
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Chainsaw did not come with bumper spike
Scott - January 5, 2017
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Chainsaw nut socket, hex wrench
Parts Used
1. Loosened the bar nut.
2. Removed the plastic covering.
3. Remove the bar and chain.
4. Place bumper spike over holes.
5. Attach bumper spike with two screws.
6. Reinstall bar, chain, plastic covering and bar nut.
2. Removed the plastic covering.
3. Remove the bar and chain.
4. Place bumper spike over holes.
5. Attach bumper spike with two screws.
6. Reinstall bar, chain, plastic covering and bar nut.
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Chainsaw did not ship with inner spike assy (forward spikes that allow chainsaw to grip the tree as chain cuts into tree).
stephen - August 29, 2016
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench
1. Chainsaw off (not running).
2. Released bar brake.
3. Slightly loosened nut that compresses chain retainer/adjustment plate.
4. Took tension off chain (loosened chain adjustment).
5. Removed plate, cutting chain and cutting bar.
6. Cleaned out (2) screw holes on forward portion of saw body.
7. Attached inner spike assembly with 2 screws, using Allen wrench.
8. Reinstalled cutting bar, cutting chain, retainer plate and nut.
9. Adjusted cutting chain tension. Tightened retaining plate compression nut.
10. Reengaged (set) bar brake.
2. Released bar brake.
3. Slightly loosened nut that compresses chain retainer/adjustment plate.
4. Took tension off chain (loosened chain adjustment).
5. Removed plate, cutting chain and cutting bar.
6. Cleaned out (2) screw holes on forward portion of saw body.
7. Attached inner spike assembly with 2 screws, using Allen wrench.
8. Reinstalled cutting bar, cutting chain, retainer plate and nut.
9. Adjusted cutting chain tension. Tightened retaining plate compression nut.
10. Reengaged (set) bar brake.
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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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