0 items | $0.00 |
1-877-4SPRUCE
1-877-477-7823
Other Customers
Have Also Viewed:
Have Also Viewed:
100° CSK STAINLESS WASHERS
|
|
| Size | Dimensions | Part No. | Price Ea. | Buy | Sub-Total |
| 6 | .500 OD x .012T | 04-00397 | $0.12 | ||
| 8 | .562 OD x 0.17T | 04-00392 | $0.12 | ||
| 10 | .750 OD x .020 T | 04-00398 | $0.09 | ||
Current Total
|
|||||
Click Add to Cart to add them to your shopping cart
or Add to Wishlist to store them for ordering later.
or Add to Wishlist to store them for ordering later.
|
Use with 100° flat head screws to provide reinforced, low-profile attachments. Less 20% Discount on 100 per size |
|
|
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. |
|
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. |
|
Excellent time tested company. Great price, Great product, fast shipping. |
Are these polished stainless steel?
Yes, these have a shiny stainless steel appearance.
What is the military number for this washer?
The #6 washer is a A3236-SS-012.
Newsletters