T-bolt, Eyelet, double head, U-bolt...Carbon steel, galvanized, 210, 302, 410, 430, 304, 316...DIN 933, 931, 3570, ISO4017, 4014 T-bolt, Eyelet, double head, U-bolt...Carbon steel, galvanized, 210, 302, 410, 430, 304, 316...DIN 933, 931, 3570, ISO4017, 4014, JIS B1180-94.