Material: Carbon Steel, Alloy Steel.Grade: ISO 4.8,?6.8, 8.8, 10.9...... SAE Gr. 2, 5, 8, A307A, A307B, A325, A449, A490...... STANDARD DIN558/ DIN601/ DIN931/ DIN933/ DIN6914 /DIN7990 ISO4014/ ISO4016/ ISO4017/ ISO4018 AS1252 ANSI/ASME B18.2 .1 IFI C-6 / IFI C-10 / IFI E-34 DIAMETER: M3-M64 10#-2 1/2" LENGTH: 8MM-900MM 3/8"-36"