Self threading bolts?

[VAhlene]

Could someone please explain the process of installing self threading bolts. I will be installing my Carolina rock shop rock rails tomorrow and I will be using 3/8-16x1" self threading bolts but unsure of how they work. What is the appropriate size hole to drill before threading the bolts on. Also are these the best idea to attach rails with? Would it be better to drill and tap the hole and then use a course thread bolt? Lastly if using the self threading bolts is loctite recommended or locking washers?

 

[Cherrie]

I have a gauge somewhere. But my pole barn is a disaster area. I'm redoing and making more benches.
But if you have a tap set or go it to a hardware look at the size tap and it should say drill size.
Check on line --- I just did and it said 5/16. But I'd check more than one source.
Call a place like Fastnal.

 

[tommudd]

Just find a drill bit that lets the very beginning of the self tapper start in
I can never remember which size so always ask at the hardware store when I buy them
They will hold fine, using the same thing on the pinch weld or using bolts?
I know some use self tappers there as well but I like to bolt them on

 

[profdlp]

...I know some use self tappers there as well but I like to bolt them on

That's what she said. :icon_redface:

 

[Cherrie]

No I said 5/16 just checked a tap.3/8's tap 5/16 drill.

 

[VAhlene]

Cool! Thanks guys! You all are always so helpful! I'll post some pics of when I install them tomorrow.

 

[Cherrie]

Cool! Thanks woman and guys you all are always so helpful! I'll post some pics of when I install them tomorrow.

Fixed it for you.

 

[VAhlene]

lol didn't mean it like that! I meant "guys" as in this whole group, didn't know it must be gender specific, thanks fellow female forum member Cherrie
:signs8:

 

[Cherrie]

I know you didn't . I use guys for both too. I was just playing.