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Home / Hardware / Washers /Washer A3235-028-193 Tinnerman
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Washer A3235-028-193 Tinnerman

31 Reviews 3 Answered Questions
Packaged Items
SinglePack of 50
Quantity
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MFG No.PNScrew SizeI.D.
(in.)		O.D.
(in.)		Approx.
Thickness		Price per
100
A3235-028-19304-0203610.196.750.035"$30.00

Overview

Washers for use with 100° flat-head screws such as MS24693 and MS24694 machine screws and NAS548 sheet metal screws to provide reinforced, low-profile attachments. Made of spring steel, Zinc plated.
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Reviews

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Richard D Verified Purchase

Washer A3235-028-193 Tinnerman
October 12, 2024

I use the 1.25 inch diameter cone shaped washers to fasten rigid cement board to substrate plywood and substrate rigid insulation board, so fasteners be flush-mounted to the finished surface. The 0.75 inch diameter washers are too small for this purpose. May i suggest to restore the availability of the 1.25 inch diameter units.

Ed M Verified Purchase

Washer A3235-028-193 Tinnerman
October 11, 2024

Works well in securing trim panels on sliding door on our RV.

Charles C Verified Purchase

Washer A3235-028-193 Tinnerman (Pack Of 50)
August 14, 2024

Michel C Verified Purchase

Washer A3235-028-193 Tinnerman
July 9, 2024

Perfect for a short wing Piper cowl!

Dan P Verified Purchase

Washer A3235-028-193 Tinnerman
June 6, 2024

I like how using these with 100 degree screws leave a smooth finish....

Lou F Verified Purchase

Washer A3235-028-193 Tinnerman (Pack Of 50)
April 2, 2024

Steve S Verified Purchase

Washer A3235-028-193 Tinnerman
March 6, 2024

Kent B Verified Purchase

Washer A3235-028-193 Tinnerman
February 24, 2024

The parts are precisely formed, very consistent, completely burr-free, and uniform in finish quality.

Michael M Verified Purchase

Washer A3235-028-193 Tinnerman
February 23, 2024

Troposphere A Verified Purchase

Washer A3235-028-193 Tinnerman
June 10, 2023

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 is the material thickness of these countersunk washers?

Approximate material thicknesses: #6 = 0.016", #8 = 0.024", #10 = 0.035", 1/4 = 0.035".

Q: Are these Tinnerman countersunk washers silver in color or yellow?

These washers are silver.

Q: What size countersink tool should be used?

For this particular part number you would want a .140-.147" hole, a #28 or #27 drill would work.

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