British sourced, solid brass set screw (a set screw is a full thread bolt) with standard hexagonal head. See HERE for a summary data sheet detailing our range of nuts, set screws & washers & the descriptive code used to define them. See below for critical dimensions & a spreadsheet list of all items with item codes for purchasing. Countersunk versions are measured & described overall, hex. & cheese heads by thread length. Please email for other quantities.