. Designed with socket head,enabling driving where there is not sufficient space for wrenches or sockets . Used widely in the home and office appliance, communication equipments, ship assembly and other machinery industry . High level of and resistance, durable and practical in all environment, fixing component, industrial and construction fasteners . with premium quality, practical and useful in machine parts, die fixturing, and clamping . Well made of premium Titanium Alloy, offering a wider bearing surface and high tensile strength but are still low profile like other socket cap screws, Manufacturer: non-brand