A flanged hex bolt is a kind of hex bolt with a flanged type washer head on the top and full machine threads.
They are known for their effecient application performance and endurance widely used in a variety of industries such as construction, manufacturing, engineering, assembling, aircraft and so on and serves a wide range of use for professionals, amateurs, landlords, repairmen and DIYers.
The 10.9-Class hex socket screw shows good performance in bad environments like high temperature, cold weather and high humidity areas without the need for time consuming and costly maintenance.