Countersink
- Grizzly.RC10
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- GoMachV
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Re: Countersink
4-40 is 82*
8-32 is 100*
8-32 is 100*
It's time to stand up to the bully. Support the companies that support the industry, not the ones that tear it down. Say no to Traxxas
Factory Works website
Factory Works website
- Grizzly.RC10
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Re: Countersink
Ok for the angle but what diameter size 1/4, 3/8 ? (for exemple ,i founded : 3/8" 100 DEGREE 6 FLUTE CARBIDE COUNTERSINK )gomachv wrote:4-40 is 82*
8-32 is 100*
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Re: Countersink
Arrrgghhh,
this is SO frustrating!! I was aware that the 8-32s are 100°, but I assumed they all were 100° or the rest at least 90°.
That's what happens when your head is metric I guess.
At least Home Depot has 82° in stock.... I just received my 100° yesterday
this is SO frustrating!! I was aware that the 8-32s are 100°, but I assumed they all were 100° or the rest at least 90°.
That's what happens when your head is metric I guess.
At least Home Depot has 82° in stock.... I just received my 100° yesterday
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- jwscab
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Re: Countersink
you'll find that the 100 degree #4 screws fit beautifully in the chassis bottom, almost like they were countersunk for 100 degree screws. I'm pretty sure they were, and associated used 82 degree screws by default. either that or the countersinks were not sunk enough to allow 82 to be flush.
I have a bunch of aircraft stainless 100 degrees I use for most builds using rc10 gold/black pan, and most graphite as well. I hate how the stock 82 don't sit flush (and rust)
I have a bunch of aircraft stainless 100 degrees I use for most builds using rc10 gold/black pan, and most graphite as well. I hate how the stock 82 don't sit flush (and rust)
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Re: Countersink
Yes, but since I converted a graphite chassis to mid motor, I need both countersink drill bits, 100° and 82°. Thinks would have been simpler iff all used the same angle.
I assume that the original tub chassis is too thin for the 8-32 screws to have a 82° or 90° countersink. The flatter 100° does not have this problem.
At least I'll have the correct bit to make all screws sit flush now.
I assume that the original tub chassis is too thin for the 8-32 screws to have a 82° or 90° countersink. The flatter 100° does not have this problem.
At least I'll have the correct bit to make all screws sit flush now.
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- mk-Zero
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Re: Countersink
Yeah, I always assumed they used the 100-degree 8-32's because the chassis material was too thin for more "normal" countersink angles as well.
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