Is there anywhere that's sells a mixed bag of varying size nuts, bolts, screws and washers etc. that are commonly used on a Pinball Machine? Had a look in B&Q who have a full aisle of stuff but I still couldn't find a 9mm X 4mm philips head screw and washer, or the metric equivalent. Having a handy bag of mixed bits and pieces would be preferable to buying them piecemeal.