Road Crash Barrier Fasteners / Guard Rail Bolts are mainly used in installation of road crash barriers /guard rail at the roads sides and turning points of roads to safeguard the fatal accidents and safety of vehicles.Coating:Â Zinc Plated, Hot Dip Galvanized, Stainless steel, Black, PTFE, Yellow, Dracomet, Client Specific RequirementsStandard:Â ASTM / ASME / BS / DIN / JIS / BS EN ISOMaterial :Â 4.6, 4.8, 5.6, 8.8, Carbon Steel, Mild Steel, Alloy Steel & Stainless Steel.Dia Range:Â DIA M16, length up to 55mm Bigger sizes can be manufactured as per order