I don't know about Motor mount bolts from Colony, but I just tried to install their rear stand bolt kit. It fits but it is so soft that I stripped one of the bolts, and one of the nuts. They felt like they were just compressing the split lock washer and the cupped large area flat washers. No I did not use a torque wrench. The nuts were snugged up using a 6 inch box end. Some of the other Colony bolt kits that I bought were great.