The Heavy Hex Nut G-8 is the accessory for the ASTM A193 Grade 8 bolt.

Likewise, the Stainless Steel Heavy Hex Nut G-8 is used in high-temperature or high-pressure applications such as piping systems and/or pumps in the industrial, construction, and mining sectors.

It is manufactured under the ASTM A194 standard, grade 8, using AISI 304 material.