theres certain vtr and vts alloys which have flat bolts, and some which have the tapered type, not sure why and when it changed but it did. and even the steely bolts are nothing like the tapered alloy bolts, as they have a bigger taper i think, so the length of the steely bolt is too short, or something like that, you can just look in the bolt hole on the alloy and if its the tapered type, there will be an extra little step inside the hole, the flat ones just go straight down