Products Description

Our black hexagon bolt is a top - tier fastener crafted from high - quality carbon steel. Its black finish isn't just for aesthetics; it provides excellent corrosion resistance, making it suitable for both indoor and outdoor applications.

Featuring a standard hexagonal head, it allows for easy tightening and loosening with common wrenches, ensuring convenient installation and disassembly. The precise threading guarantees a secure fit, preventing loosening during vibration or heavy - duty use.

Available in various sizes, this bolt meets international quality standards. Whether for construction projects, machinery assembly, or DIY repairs, our black hexagon bolt offers reliability and durability you can count on.
Parameter
|
Name |
Hexagonal bolts |
|
Material |
carbon steel,Stainless Steel and alloy steel,etc. |
|
Standard |
DIN 933 |
|
Certificate |
ISO 4017 |
|
Grade |
Grade 4.8, Grade 5.8, Grade 8.8 |
|
Nominal diameter |
M4-M36 |
|
Surface treatment |
BLACK |
Product Advantage
About us
Hebei Sanwei Fasteners Co., Ltd.'s production base is located in Hebei, China, covering an area of 33,000 square meters with a building area of approximately 30,000 square meters. The environment is beautiful and conveniently located near major highways and railways, facilitating the procurement of raw materials and the delivery of finished products, effectively reducing logistics costs.

500+
Enterprise Employees
3000000
Registered Capital
125+
events & challenges
30000㎡
Square Meters Built
FAQ
Q: What is the function of black oxide finish?
A: It improves wear resistance and grip, provides basic anti-rust protection with neat appearance.
Q: What are the common material and strength grade?
A: Made of carbon steel, mainly 4.8 and 8.8 grade, high strength and stable load-bearing.
Q: Full thread or partial thread?
A: DIN933 is full thread, threads run along the entire shank.
Q: What tools are compatible for installation?
A: Compatible with hex sockets, torque wrenches and impact wrenches.
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