Grade HRC
8.8 D≤M16 35K,45# 22-32
M18≤D≤M24 23-34
D≥M27 40Cr
10.9 D≤M24 40Cr 32-39
D≥M27 35CrMoA
12.9 D≤M24 35CrMoA 39-44
D≥M27 42CrMoA
Name: hexagon bolt gr8.8
Class: 8.8
Size:m8-m42 Length:6-420mm
eg:grade 8.8 hex head bolt
Material :D=Diameter
D ≤ M16 35K
M18≤D≤M24 35K
D>=M27 40Cr
Finish:BLK ,HDG, Zinc Plated(white zinc,bule zinc, white & blue zinc, yellow zinc ,color zinc and so on ),Dacromet,Chrome
Certification:ISO9001:2008
Packing:Carton
Founded in 2003, Ningbo Zhongli Bolts Manufacturing Co., Ltd is a professional manufacturer of high-strength fasteners. Covering an area of about 10,000 square meters, we have 10,000 tons of total annual productivity. We pass the ISO9001:2008 in 2007 and carry out it in our every process of productions. Our company has complete production line, with the strength of advanced producing and complete testing equipments, such as cold and hot heading, heat treatment machines
8.8 D≤M16 35K,45# 22-32
M18≤D≤M24 23-34
D≥M27 40Cr
10.9 D≤M24 40Cr 32-39
D≥M27 35CrMoA
12.9 D≤M24 35CrMoA 39-44
D≥M27 42CrMoA
Name: hexagon bolt gr8.8
Class: 8.8
Size:m8-m42 Length:6-420mm
eg:grade 8.8 hex head bolt
Material :D=Diameter
D ≤ M16 35K
M18≤D≤M24 35K
D>=M27 40Cr
Finish:BLK ,HDG, Zinc Plated(white zinc,bule zinc, white & blue zinc, yellow zinc ,color zinc and so on ),Dacromet,Chrome
Certification:ISO9001:2008
Packing:Carton
Founded in 2003, Ningbo Zhongli Bolts Manufacturing Co., Ltd is a professional manufacturer of high-strength fasteners. Covering an area of about 10,000 square meters, we have 10,000 tons of total annual productivity. We pass the ISO9001:2008 in 2007 and carry out it in our every process of productions. Our company has complete production line, with the strength of advanced producing and complete testing equipments, such as cold and hot heading, heat treatment machines
