Standard: DIN 912 Socket Cap Size: M6 x 25 Material: 304/A2 Stainless Steel Finish: Last 10mm of thread to be coated with Vibratite anti-vibration resin or similar. Qty: 5000, 25000 and 50000 pcs. To be drilled vertically 25mm (as per drawing) through the centre of the screw from the head and to have a 2.5mm hardened dowel pin fully inserted and secured into the socket cap. The dowel must not impede the allen key when it is inserted.