Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of dome head square neck bolt in China, also supports customized service with low price. Please feel free to buy cheap dome head square neck bolt made in China here from our factory.
Dome Head Square Neck Bolt
Dome Head Square Neck Bolts, also known as carriage bolts or coach bolts, feature a domed head and a square neck beneath the head. The square neck is designed to prevent the bolt from turning when tightening the nut.
GNEE specializes in the professional production of various railroad tie bolts, ensuring high quality and compliance with international standards. Our bolts are designed to meet the specific requirements of different rail systems and can be customized according to your project needs. Feel free to contact us for inquiries.
Specification
|
Name |
Type |
Grade |
Material |
Mechanical Properties |
Surface |
|
Dome Head Square Neck Bolt |
Round head square neck bolt |
4.6 |
Q235 |
Tensile strength: ≥400Mpa Yield strength: ≥240Mpa Elongation: ≥22% Cold bending: 90 degrees without crack |
Plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing |
|
Carriage bolt |
5.6 |
35# |
Tensile strength: ≥500Mpa Yield strength: ≥300Mpa Elongation: ≥20% Cold bending: 90 degrees without crack |
Rail Bolt Supplier
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