A2 Stainless Steel All Metal Locking Nuts. Please select your requirements from the drop down lists above. All metal self locking nuts. Ideal for use in hot applications where the nylon collar in standard nyloc nuts may melt. Indentations on the top face of the nut slightly distort the thread and create a locking action. Threads are standard metric coarse(most common). Manufactured from A2 stainless steel for improved corrosion resistance. All our prices include. FREE 1st CLASS UK P&P. Orders placed before 2pm are usually dispatched same day (Mon-Fri). Picture is for illustration only. All items are in stock ready for dispatch. A vat invoice is issued with all orders. Deliveries to some remote post codes may incur additional costs. Our aim is for you to be 100% satisfied. A2 Stainless Steel Hexagon Full Nuts To Fit Metric Coarse Pitch Bolts & Screws. M4, M5, M6, M8mm Stainless Steel Flanged Button Head Allen Screws/Bolts. M4, M5, M6, M8 A2 Stainless Steel Hexagon Head Fully Threaded Set Screws, Bolts. A2 Stainless Steel Button Head Screw, Allen Socket Bolts M3, M4, M5, M6, M8. M5, M6, M8, M10 A2 Stainless Steel Flange Hexagon Hex Head Metric Bolts / Screws. A2 Stainless Steel Nyloc Nuts For Bolts/Screws M2.5,3,4,5,6,8,10,12,14,16,18,20.