Model Hex Head screws

[canadianhorsepower]

Thanks, all, for the comments and suggestions. Rod, my dividing head doesn't have enough power to turn make threads.

I'm going to try using my tool and cutter grinder to grind the hex heads. I think that will give me a better finish. Also, I probably won't fill the sockets since I would like to continue to use allen wrenches with them.

I would buy the hex bolts, but they don't have the sizes I need. For the head bolts, I need 4-40, 1.25" long. I would also need a hex head of 5/32 across the flats. The smallest that I've found available are 3/16".

If I made them out of hex stock, again, can't find any 5/32" hex available. I can get 1/8" or 3/16" in 12L14 and nothing smaller than 3/16" in 303 stainless.

I was really just looking for a quick and easy way to make the SHCS's less obvious.

Chuck

did you check this supplier

http://www.jimorrisco.com/index/product/id/66

 

[RonGinger]

Quote:
Originally Posted by RonGinger
But they are not to scale. The heads are much to thin to look like old engine bolts. The smaller brass sizes are better, but the steel and SS are way off

Yup, the heads are .010" thinner then they should be!

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Mike N.

In my experience they are more like about one half the scale thickness. When I called microfasteners the first time to ask about their use, and explained the kind of models I was making, the owner told me they were off scale and said I wouldn't like them. I bought some and he was right.

 

[abby]

These are the smallest steel screws/bolts that I have been able to buy

At 0.087" AF the 12 BA nuts are about right , the bolt heads are 10 thou bigger which is a pity.

 

[Mike N]

In my experience they are more like about one half the scale thickness. When I called microfasteners the first time to ask about their use, and explained the kind of models I was making, the owner told me they were off scale and said I wouldn't like them. I bought some and he was right.

A 1/2-13 bolt has a .300" head thickness. 1/4 scale would be .075" head thickness the 5-40 Micro-Fastener Bolts measure .064" (Good enough for the models I build)

 

[Mosey]

Please don't hit me, but I have to ask....why not buy them?
Mosey