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Home / Hardware / Machine Screws /Screw, Washer Head AN525-10R8
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Screw, Washer Head AN525-10R8

24 Reviews 5 Answered Questions
Packaged Items
SinglePack of 50
Quantity
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Dash No.Length
in.		Grip
in.		Thread Size
AN525-10R81/21/810-32

Overview

High-strength machine screws fabricated from alloy steel per specification QQ-S-689. Tensile strength 125,000 PSI. Cadmium plated per QQ-P-416A, Type II, Class 3. Cross-recessed head.
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Reviews

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Perfect for my application

Steve S Verified Purchase

Screw, Washer Head AN525-10R8
May 21, 2022

Jeff A Verified Purchase

Screw, Washer Head AN525-10R8
December 29, 2021

Products was great

James B Verified Purchase

Screw, Washer Head AN525-10R8
October 29, 2021

Great quality!

Tom N Verified Purchase

Screw, Washer Head AN525-10R8
August 23, 2021

Perfect for cessna 150 fuel tank cover, used zinc anti-seize.

Frank
May 12, 2021

I intend to use these screws on a hobby project in my Life Steam Railroading hobby. They will be used in four screw rail joints to join the ends of one inch high Steel rail sections.

William S
April 20, 2021

Great

David H
April 8, 2021

Much more durable than the old ones.

Barry D
January 26, 2021

Good stuff!

Tom N
January 19, 2021

These are excellent. Much more durable than the others Ive used. Just make sure the shank isnt too long for your project.

Barry D
December 20, 2020

Q&A

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Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What does the R in example AN525-10R24 screw stand for? Are all AN525 screws the high tensile strength of 125,000b?

The R stands for Recessed (Phillips) Head Steel Screw.
Steel Spec: High Tensile Strength of 125,000 PSI
Alloy Spec: High Tensile Strength of 62,000 PSI

Q: Are these AN525 washers stainless steel?

No, these are made of cadmium plated steel.

Q: Are these rustproof? Or at least resistant?

The AN525-832R4 are cad plated, which would resist rust until it eventually wears off.

Q: What nylock type nuts would fit these?

AN365-832A

Q: Are they are structural screw? Can I use them for seat rails?

They are high strength/structural. You would need to verify the correct screws per your parts manual.

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