Thumbs 1
Thumbs 1

SCREW AN525-832R8

Packaged Items
SinglePack of 50
Dash No.Length
Thread Size


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.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -

  • Frequently Purchased With
  • Customers Also Viewed



Daniel J Verified Purchase

SCREW AN525-832R8

March 19, 2024

As expected. Great quality.

Boyd E Verified Purchase

SCREW AN525-832R8 (PACK OF 50)

February 24, 2024

Keith H Verified Purchase

SCREW AN525-832R8

November 14, 2023

Good quality, fast shipping

Bruce B Verified Purchase

SCREW AN525-832R8

June 22, 2023

Fantastic..! Gives all the streamlinning advantages of a countersunk screw, without the need to compromise the structural integrity of the parent material.

David T Verified Purchase

SCREW AN525-832R8

January 12, 2022

Great quality Hardware!

Westwood A Verified Purchase

SCREW AN525-832R8

September 9, 2021

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

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


David H
April 8, 2021

Much more durable than the old ones.

Barry D
January 26, 2021


Please note, Aircraft Spruce'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 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?


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.

View in Catalog

View Image View in Catalog