M4-0.7 x 35 DIN 7500C E Pan 6-Lobe Recess Thread Rolling Screw Full Thread Zinc & Wax MPH and it is heat treated

and it is heat treated for increased strength

They have a round head with a Phillips drive

which means it has a flat head with a slightly rounded top

1/4-14 x 3/4 6-Lobe Flat Self Drilling Screw Fully Threaded Zinc & Bake

and the modified truss head offers a low profile and increased holding power

M4-0.7 x 35 DIN 7500C E Pan 6-Lobe Recess Thread Rolling Screw Full Thread Zinc & Wax MPH and it is heat treatedThe M4 0. 7 x 35 DIN 7500C E Pan 6 Lobe Recess Thread Rolling Screw Full Thread Zinc & Wax is a high performance fastener designed for demanding applications. It features a 6 lobe recess drive for secure and efficient driving, reducing the risk of cam out. The full thread design provides maximum holding power, while the zinc and wax coating offers excellent corrosion resistance. The thread rolling process ensures precise thread formation and high