| Material: | Carbon Steel |
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| Type: | Round Head |
| Connection: | Common Bolt |
| Head Style: | Round |
| Standard: | DIN, ANSI, GB, JIS, BSW, GOST |
| Grade: | 4.8 |
| Samples: |
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| Customization: |
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Audited Supplier A carriage bolt, coach bolt or round head square neck bolt 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. 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.
Carriage bolts were developed for use through iron strengthening plates on either side of a wooden beam. It is commonplace though to use them into bare timber, the squared section giving enough grip to prevent rotation.
| Products name | Bolts(Hex bolt,Heavy hex bolt,Flange bolt,Carriage bolt,Guardrail Bolt) | ||||||
| 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 |
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| 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:hainafastener.en.made-in-china.com | |||||||
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