what screws to mount Hot Racing aluminum transmission case?

[ussprinceton2004]

The Hot Racing transmission case is made out of 6061 aluminum. Therefore, the screws needed would be machine screws, instead of the self tapping, used for plastic. What screws would I need to mount the HR case to the skid plate from the bottom?

[Big Bill]

I am thinking a 3mm machine screw. The length would probably be the same as the self tapping ones. They would need to be counter sunk type not a pan head style. Hope this helps.

[SCREAMER]

They are 3mm countersunk. I have the same case on my SS Bomproof trans. Also, the two that are spaced farther apart need to be shorter. I believe it's 2 3x10mm and 2 3x8mm.

[ussprinceton2004]

Originally Posted by Big Bill

I am thinking a 3mm machine screw. The length would probably be the same as the self tapping ones. They would need to be counter sunk type not a pan head style. Hope this helps.

Originally Posted by SCREAMER

They are 3mm countersunk. I have the same case on my SS Bomproof trans. Also, the two that are spaced farther apart need to be shorter. I believe it's 2 3x10mm and 2 3x8mm.

thanks guys. I appreciate it.

[FloridaCrawler]

fyi I used 4 3X12 flat head and it worked out ok.