5 solid brass Uk made gallery screws. Each screw measures 10mm total length, 6mm thread length, 3mm screw diameter and 8mm head diameter. 0.4 inch total length, 0.2 inch thread length, 0.1 inch thread diameter and 0.3 inch head diameter. Please look in our eBay shop for many more traditional, antique and contemporary ironmongery designs and fittings.