M12x40mm Hex Serrated Flange Bolts 10.9 Grade Carbon Steel Screws 6 Pack

Uxcell M12x40mm Hex Serrated Flange Bolts 10.9 Grade Carbon Steel Screws 6 Pack

Description:
1. Material: Made of 10.9 grade carbon steel, black oxide coating finish, high strength, wear-resistant, anti-corrosion.
2. Application: It is widely used in the assembly and maintenance of households, machine tools, construction, and DIY project. Such as the assembly and fixing of guardrails, home appliances, pipeline installations, equipment, steel-framed houses, etc.
3. Design: There is a circular serrated flange under the head of the flange bolt, which acts as a gasket and has the function of distributing load and preventing loosening.
4. Installation: A wrench is required for installation. Generally, with a hex nut to form a fastener device(Not in the package). It can also be used alone in components with a pre-threaded hole.