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Non-standard Carbon Steel Blue White Zinc Plated Flat Head Hex Neck Carriage BoltGangtong Zheli is China manufacturer & supplier who mainly produces DIN603 Carbon Steel Hot Dip Galvanized GR 4.8 GR 8.8 Full Thread Carriage Bolt with many years of experience. Hope to build business relationship with you. DIN603 carriage bolts, made of carbon steel, are available in different grades, including GR 4.8 and GR 8.8. These bolts are hot-dip galvanized to provide corrosion resistance and durability. They feature full threads, making them suitable for various applications where a strong and secure fastening is required. Carriage bolts are commonly used in situations where a smooth or flat surface is needed, and their square neck prevents the bolt from turning during installation. Whether it's for construction, machinery, or other applications, these carriage bolts are designed to meet your fastening needs with high-quality and reliable performance.

Carbon steel material including Q195 Q235 Q345 Q500 S35K C45Etc.
| Material No. | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Ti≤ |
| Q195 | 0.12 | 0.3 | 0.5 | 0.035 | 0.04 | — |
| Q235 | 0.22 | 0.35 | 1.4 | 0.04 | 0.05 | — |
| Q275 | 0.24 | 0.35 | 1.5 | 0.45 | 0.05 | — |
| Q345 | 0.2 | 0.5 | 1.7 | 0.035 | 0.035 | 0.2 |
| Q500 | 0.18 | 0.6 | 1.8 | 0.03 | 0.025 | 0.2 |
| Q550 | 0.18 | 0.6 | 1.8 | 0.03 | 0.03 | 0.2 |
Hot rolled wire rod - Dial (cold) - Spheroidizing annealing (softening) - mechanical descaling - acid - cold dial - - thread processing - heat treatment - Test
| METRIC BOLT:GB/T 3098.1-2010,ISO898.1-2009 | ||||||||||
| CLASS | 4.6;4.8 | 5.8 | 6.8 | 8.8 | 9.8 | 10.9 | 12.9 | |||
| SIZE | ALL SIZE | ≦M12 | >M12 | ≦M8 | >M8 | ALL SIZE | ||||
| COMMON MATERIALS | 1008 ~ 1015 | 1012 ~1017 | 10B21 / 1022 | 10B21 | 10B33 | 10B21 | 10B33 | 10B33 / SCM435/ML20MnTiB | SCM435 | |
| ML08AL SWRCH8A~ SWRCH15A | SWRCH15A~ SWRCH18A | SWRCH22A | 35K |
|
35ACR | 10B35 |
|
AISI 4140 | ||
| HEAT TREATMENT(YES/NO) | NO | YES | ||||||||
Environmental protection equipment, medical equipment, communications equipment, electric power facilities, electronic products, food machinery, petrochemical industry, ship assembly, pump valve, pipe, building curtain wall, open places, etc.
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