Screws for Shinn Brake Assembly

[blakecarl]

I'm looking for screws that attach the Shinn brake assemply to the landing gear. There is a source suggested in Rob Lee's, "Care & Feeding: Shinn Brakes", but the minimum order is 100. If anyone has extra screws they would be willing to sell, I'd be interested in 14 and preferably 18 to have a few on hand.

Blake

[Ragwing nut]

Re: Screws for Shinn Brake Assembly

they are 100* countersink and should be able to get them at a/c spruce or wicks

[blakecarl]

Re: Screws for Shinn Brake Assembly

What is "100*"? I'm not familiar with this.

[3Dreaming]

Re: Screws for Shinn Brake Assembly

He put the * for a degree mark. 100 degrees for the angle of the countersink.

[asq]

Re: Screws for Shinn Brake Assembly

what is "100*"? I'm not familiar with this.

100°

[blakecarl]

Re: Screws for Shinn Brake Assembly

The 100 degree figure conflicts with what Rob gives in his reference, 82 degree. I decided to measure the actual angle on my brake bracket. It's not the easiest to measure but it is definitely closer to 82 than 100 degrees. Therefore, if my assumption is correct, that the angle on the screw head should match the angle of the hole in the bracket it goes into , I should be looking for screws with an angle of 82 degrees. Let me know if I'm missing something here.

I checked with Aircraft Spruce on availability of 82 degree countersunk screws. They only have 8-32 and smaller. The bracket requires 10-32.

Also, are these screws supposed to be of higher strength? If so, of what value?

Sorry for being so particular here but considering the system, I want to insure the right parts are being used.

[Hank Jarrett]

Re: Screws for Shinn Brake Assembly

YEE HAW!! Found a bag of the screws and a place that carries them, IN SMALL NUMBERS! I will try some in my gear ASAP to make sure they fit and have the right thread and head angle. They are slot head and match the part number from the drawing.
Hank

[Guest]

Re: Screws for Shinn Brake Assembly

Hi Hank,

You mentioned a drawing.

Do you have landing gear drawings?

Dave

[Hank Jarrett]

Re: Screws for Shinn Brake Assembly

No drawings of the gear that would let you build one (or even pieces of one), just a bad assembly drawing I found a part number on. There are several people who are trying to put a drawing together of the gear so we might be able to repair and make gear some day. Just another one of those long term projects on the list.
Hank

[M Towsley]

Re: Screws for Shinn Brake Assembly

Hank,

I have a bag full of those screws if you need any.

[Guest]

Re: Screws for Shinn Brake Assembly

Hi Marty,

What is the part number for the screws? I assume they are AN screws. Is that correct?

Dave

[M Towsley]

Re: Screws for Shinn Brake Assembly

Hi Dave,

No,they are not AN. They are a specialty screw, (82 degree countersunk machine screw), that a particular business made. I got these a long time ago when redoing the brakes on my first T-Craft. I believe I had to buy them in a bulk of 100, (oops, turns out I had to buy 200). The info will be on here, but you would have to dig back to 2004-2005 my guess. I don't want to start a stampede, but do you need some?

I will be at the hangar later today. I will grab the package and give you the particulars.

[M Towsley]

Re: Screws for Shinn Brake Assembly

The part number is MS51960-65, (10-32 unf-2A x 1/2" ph flat head ss machine screw. They have a 100 degree head).

I'm sitting here with a bag full of them. Dave, PM heading your way.

[Hank Jarrett]

Re: Screws for Shinn Brake Assembly

I just need to get over to the barn and put one in the gear to actually see which one it is. Not a problem, except for time to get over and do it. I just hope the ones I have are the right ones since he will sell them one at a time and they are very inexpensive.

Hank

Unfortunately, to my uncalibrated eye-ball these look like 90* heads. Go figure. ;-) I need to actually MEASURE them.

[tcraft759]

Re: Screws for Shinn Brake Assembly

These are mil-spec screws, not specialty screws, and are readily available, i.e. www.skygeek.com, who has 650 pcs. on the shelf and sells them for $0.14 ea. in a bag of 50.

Helen