allen bolts

[smoke187]

anyone know what size allen bolts i would need for a vj20 to bolt up the downpipe i think this would make it easier to install and remove

also want to use them for the compressor outlet flange

http://www.mcmaster.com/ is where i want to get them from just not good with sizing up bolts

was thinking of buying them in a kit like this part number 95874A113