Product Name: Full Thread Stud Bolts with 2 Heavy Hex Nuts
Standard: ANSI B18.2.1
Certificate: API 20E BLS-1
Material: ASTM A193 Grade B7M / ASTM A194 Grade 2HM
Size: 1-5/8 Inch 8UN
Length: 300 mm
Surface Treatment:
1st Layer: Zinc-Nickel Coating (ASTM B841 / F1941)
2nd Layer: XYLAN 1070, Green
Source: https://www.landee.cn/api-20e-bls-1-stud-bolt-nuts-a193-b7m-a194-2hm-1-5-8-in.html