Originally Posted by
Screwbolts 
...........................( I drill my own Halo Chrome 10x32 x 3/8 screws to make vent liners)...............
Hi Ron,
Spelling has never been one of my strong points. :-)
Holo Krone : http://www.holo-krome.com/
I currently use the: Flat Head Socket cap screws in 10/32 x 3/8
If you look at the above link I am sure you will see a real similarity in the: Button Head Socket Cap Screws to the design that Lehigh markets, although this screw lacks the needed 82* taper. :-)
These are very hard, Rockwell of over 50 for the screws IIRC. :-)
I use Cobalt .0315 drills to drill them. I have gotten as high as 17 vents drilled per bit.
Last edited by Screwbolts; 03-05-2011 at 02:51 PM.