the one that holds the front and back sides of the front fender together on non-FY K100 or any old K75 S, T, C, RT, whatever. # 10 in the attached. I'm tired of riding around without the back of the front fender attached. Or if anyone knows the size of the stupid bolt. I have mucho monies in pay pal and can reimburse a donor far more than the 10 cents the bolt is worth!