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Home / Hardware / Machine Screws /AN526C-632R8 Stainless Steel Machine Screw
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AN526C-632R8 Stainless Steel Machine Screw

73 Reviews 8 Answered Questions
Packaged Items
SinglePack of 50
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MaterialThreadLengthPart No.
Stainless6-321/2AN526C-632R8

Overview

Truss-head non-structural machine screws made of carbon steel, cadmium plated. Minimum tensile strength 55,000 PSI. Available in slot head or Phillips recessed head.
   
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Reviews

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screws

Dan C Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw
October 29, 2024

everyone needs a loose screw

Gary B Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw
April 3, 2024

Good deal

James D Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw (Pack Of 50)
January 10, 2024

Just what I needed

Larry R Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw (Pack Of 50)
November 11, 2023

Norm P Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw
September 2, 2023

Steven B Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw
April 21, 2023

Randal A Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw
April 1, 2023

Martin B Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw (Pack Of 50)
March 22, 2023

Arrived promptly

Rob B Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw
March 13, 2023

Afelio S Verified Purchase

AN526C-632R8 Stainless Steel Machine Screw (Pack Of 50)
January 24, 2023

Q&A

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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: Are the lengths of machine screws measured by the length of the threaded portion not including the head?

Yes, they are measured from the bottom of the head to the end of the screw, the threaded portion.

Q: The AN526C-440R8 is metric thread?

No, it is a standard 4-40 thread.

Q: What do the numbers in the thread size column mean? ie 4-40. what does the 4-40 mean

The first number is the size, or diameter, and the dash number is the thread count per inch. A #4 screw is .112" diameter.

Q: Regarding non-structural use of AN526 and AN365 hardware... What is the difference (reason for purchasing) stainless vs. Cad plated?

You may want to consult with your A&P for more details of which would be better for your application. We suggest using the hardware recommended in the aircraft parts and maintenance manuals.

Q: Is there a difference in strength between the CAD plated and the Stainless?

No, any strength difference would be based on the thread type. These all have a 55,000 psi minimum tensile strength.

Q: What does the R8 stand for in AN526C-632R8 and AN526C-440R8?

That is the length, R8 is 1/2 inch.

Q: Are these truss head screws or round head?

AN526 screws are Truss head.

Q: What colours do these AN526440R screws have? Are they black or silver?

These screws come in a silver CAD plated version.

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