Product specifications:
Screw type: Left Hand Thread external hexagonal full thread;
size: M8x30mm;
quantity: 2PCS(without gasket nuts);
material: SUS304;
color: silver.
The grades of stainless steel bolts are divided into 45, 50, 60, 70, 80, and the materials are mainly divided into austenite A1, A2, A4, and martensite And ferrite C1, C2, C4, its expression method is for example A2-70, before and after "--" indicate bolt material and strength grade respectively.
SUS304 (0Cr18Ni9-also known as A2), mainly used in the manufacture of ordinary stainless steel bolts, screws, washers, and nuts. The strength grade is generally 70, which means the ultimate tensile strength is 700MPa.