Item Type: Hammer Head Screws Weight: 294g / 10.37oz Product Material: Stainless steel 1Prime Material: The hammerhead screw is made of premium A2 70 stainless steel, high hardness, strong and durable, strong rust resistance, strong oxidation resistance, long service life. 2Hammer Head Screw M8x20 Stainless Steel: Full Thread means that the screw has a hammer shaped head and achieves a tensile strength of 700 N/mm2 when tightened. It can provide good clamping force in different materials to achieve the effect of connection fastening. 3Strong and Durable: Hammer head screw M8 stainless steel is twice as hard as copper and ten times harder than aluminum, which is considered particularly durable. It will not rust or break easily even when used in harsh weather such as high temperature, humidity or severe cold. 4Easy to Install: Accurate machined stainless steel hammer head screws, half screws neat and clear, uniform force is not easy to slip, no burrs, can be freely screwed together, screwed well, easy to install. 5Widely Used: M8 stainless steel hammer head screws are easy to use in metal structures, aluminum assembly, solar module fixing and photovoltaic roof hooks. They provide flexible threaded connections. 15 x Screw 15 x Nut