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A carriage bolt, coach bolt or round head square neck bolt[1] is a form of bolt.It is distinguished from other
bolts by its head: the shank of the bolt is circular for most of its length, as usual, but the portion immediately
beneath the head is formed into a square section.[2] This makes the bolt self-locking when placed through a
square hole, or a round hole in most wood. This allows the fastener to be installed with only a single tool, a
spanner or wrench, working from one side. The head of a carriage bolt is usually a shallow dome. The squared
section is of the same size as the diameter of the bolt shank, with a plain unthreaded shank.
| Standard: |
DIN,ASTM/ANSI JIS EN ISO,AS,GB |
| Material |
Stainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L,F593 |
| Steel Grade: DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9; SAE: Gr.2,5,8; ASTM: 307A,307B,A325,A394,A490,A449, |
| Finishing |
Zinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide,
Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated |
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Production
Process |
M2-M24:Cold Froging,M24-M100 Hot Forging,
Machining and CNC for Customized fastener |
Customized Products
Lead time |
Busy season:15-30days,Slack seaon:10-15days |
| Stock Products |
Steel:4.8Grade DIN6923,8.8Grade 10.9Grade of GB5783 and GB5782
Stainless steel: All DIN Standard stainless steel Bolt |
| Free Samples for standard fastener |
| For more information visit: |
 
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Professional Manufacturer: All of our Fastener are designed and manufactured according to buyers’ specification and performance.
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Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.
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Cost effective: Competitive prices with factory directly supply
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Perfect fastening solution with 20 years experiences to solve your problem: Wide range of parts selection.
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Customized Ideal Fasteners: customized services according to the samples and drawings offered.
If you are not sure about what exactly you need - feel free to contact us anytime and get professional assistance from us.
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Grupos de Producto : Pernos hexagonales > Tornillo de carro
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