This standard BS EN 3301:2007 Aerospace series. Bolts, T-head, close tolerance medium thread length in heat resisting steel FE-PM1708 (FV535), uncoated. Classification: 1000 MPa/550°C is classified in these ICS categories:
49.030.20 Bolts, screws, studs
This standard specifies the dimensions of uncoated T-head bolts, close tolerance, with MJ-thread, medium thread length, in heat resisting steel FE-PM1708 for aerospace applications. Maximum test temperature of the parts is 550 °C. These bolts are to be used in aerospace fastening systems mainly stressed in shearing force.