Thread size of B4 lug bolts

I wanted to upgrade to chrome lug bolts on my 96 Passat wagon. Can someone tell me what size the thread pitch and length of the bolts are? They will be mounted on AY3 rims from a 97 Jetta. I am also looking for four center caps for these rims part number 6NO 601171 C

no one has gotten back to you. im not 100% sure, mk3 lug bolts are 12mmx1.5 if i recall. the lugs you use for VW and same size aluminum rims need to be at least 24mm length, stock steel wheels can take the shorter 22mm, al rims, do not use short lugs. there are 27mm lugs available if your rims fit that size/length.

like i said i havent refreshed my lug memory. they could be 12mmx1.5, i cannt be sure or 12x2.0. 12mmx1.5 sounds right. if in doubt take 'stock sized' lug to store with you, and match to a bolt, or nut, you can now tell.

They are indeed m12x1.50... unless you do a 5 lug conversion, in which case they're m14x1.50.