Perfect fit for my 1979 7GCBC Citabria lower cowling attachment. The washers having more surface area than the original Teflon washer, providing an additional layer of security and makes for a very clean look.

Darren G Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Washers were good quality as expected.

Nick Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

This is great little product.

Guy G Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Use these for interior install after annual inspection

Silas K Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Knew about washers from working on aircraft in the Air Force. I Used them to hold down the floor on my boat, works well in pulling down and distributing weight evenly on floor.

Merrell W Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

All good

Paul G Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

love these...have found so many uses for them

Faisal K Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

product is as depicted

Edward R Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Good quality material and meets specs.

Ronald D Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Just what I placed on order. Fast delivery

Andrews A Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Excellent Quality

Wayne S Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

A quality part. Worth the cost.

Mark S Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Good product

Aviation S Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Good quality. Does the job.

Eric T Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

STR8 Gas

Carter G Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

The recessed washer was exactly what I needed to complete my project.

Adam Y Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Excellent

Yv P Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

As advertised in catalogue, shipped promptly but shipping very expensive

Glen C Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Good quality

James G Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

They are correct dimension and good finish. Not much to say about a washer.

Patrick R Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Washers received were as advertised. Shipping time and cost was excellent. I only wish you offered this same item for a #12 screw.

Carl G Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Nice product, best price

Aeropro Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

perfect

Gina W Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Replacements for a few washers during annual, work great!

Randy P Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

Received all products in excellent condition and exactly as ordered. Fast Shipping.

As advertised

Product is exactly as advertised. Arrived in a timely manner

Used in conjunction with machine screws to attach panels to my race car. You can do this to finish with a flush attachment. Size allow for more surface are to hold panel secure. Machine head screw fits great in the recess of the washer. My racing buddies are taking notice.

My Order was Full of Excellent Parts! Excellent Price! Very Fare and Quick Shipping! Quick and Easy Ordering! YES! buy from Aircraft Spruce! Thanks Again, Carl

The product is as advertised, very helpful to have the cross-reference feature.

Item ordered was as expected.

Exactly what I was looking for. Thank you

Essential airplane item. Buy them by the dozen and apply liberally where screws go into fiberglass or where holes are worn out. Look and quality are great.

Hard to find CSK Stainless washers at a reasonable price and a quick delivery. Would recommend.

I wanted to keep the hardware that will attach my propeller spinner, as flush to the surface of the spinner as possible. These do the job nicely when you use a countersink and flat heat screws.

I used these washers to better secure a large fiberglass spinner. I had to use the... SS MACHINE SCREW AN507C1032R10 which have slightly larger diameter than the ID of the washer. Drilling out the washer to accommodate the screw made a perfect fit.

...always worked great: never had a problem with these.

Received quickly, shipped at a reasonable price with USPS first class, item is as described.

needed tool box item

Excellent quality with a nice finish

Excellent time tested company. Great price, Great product, fast shipping.

Its a dimpled washer what can I say, it fits and spreads the load, works great with fiberglass fairings where you dont want to much load in one direction that might crack the fiberglass. The product is exactly what is says it is and set up for 100 degree flush bolts.

Fiberglass fittings & fairings are often attached to a plane with counter sunk flat head screws. But fiberglass is soft compared to metal, which will erode and enlarge the countersunk holes during the stress applied while flying. Brand name Tinnerman countersunk washers spread the force and lessen the wear, but are made from Zinc coated spring steel. CSK washers are knockoffs, made from stainless steel and are cheaper. I’m building an RV-14A and can report that the CSK washers fit the fiberglass countersunk holes and 100° flat head screws perfectly (countersink only enough to fit the screw) and are low profile – so shouldn’t cause too much drag. I haven’t attempted to countersink the whole washer, which would weaken the fiberglass. So basically when using these washers you trade less wear & tear maintenance for some loss in speed – how much I’ll report in a year’s time. But having just spent more than 3+ full time weeks attaching the wheel pants and transitional fairings to my RV-14 (who knew there was so much fiberglass work on an aluminum airplane), I can tell you I never want to do fiberglass work again – my skin still itches and I’m still coughing – despite wearing protective gowns & particulate masks. Synergy Air builds Vans Aircraft professionally & recommended that I use these washers.

These are not the decorative CSK washers that Im use to seeing on expensive airplanes. These seem too thin and are a different grade of stainless steel. Youll likely need to change all IOT to match.

David A Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020

The radius isnt as smooth as that pictured

David A Verified Purchase

#10 Stainless Steel Csk Washer A3235-Ss-020