[Shop-talk] Specialty bolts

[skip albright]

like a carriage bolt, but different?
On 4/15/2013 1:11 PM, Steve Hammatt, Mount Vernon WA USA wrote:
> Ibm looking (so far without success) for a type of bolt that:
> 1.  slight convex head
> 2.  underside of head has 4 facets (sides) that taper inward.
> The bolt is designed to fit into a small casting with a matching
> 4-sided tapered hole to lock bolt from rotating while being
> tightened.
>
> Anyone ever seen anything like this?
>
> Steve Hammatt
> Mount Vernon WA USA
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