GI Hex Bolt Grade 4.6 and 8.8. The first digit relates to the ultimate strength of the material, so the second is the ratio of yield stress to ultimate strength. So the GI Hex Bolt Gr 4.6 have an ultimate material strength of 400N/mm2 and the yield (or proof) stress is 60% of the ultimate strength.
Hex bolts from Fasteners are mostly used in repair and construction work. Because as the name implies, they have a hexagonal head and come with machine threads for a firm and rough handling. They come in a wide range of different hex bolt sizes for custom applications depending on its dimensional requirements
We provide various kind of GI hex bolt bolts such as hex cap screws, and hex tap bolts. Custom order your 4.6, 5.6).
Our products cover many applications in the automotive and general applications. We stock material Dia from M4 – M42 in grades 4.6, 5.6 MS Steel. in Hex Head, T Bolt, and etc.
Hexagon head fully threaded bolts (setscrews) manufactured in high performance corrosion resistant GI 4.6,5.6 standard grade as per European standard.
Sizes Available M6 to M64
Length 25mm to 500mm
Hot Forged Bolts and Nuts
M72 to M125
Length 500 – 2 Mtr