DIN 603 Grade 4.8/8.8 Zinc Plated Carriage Bolts
zinc plated Carriage Bolts/ cup head bolts/Mushroom Head Square Neck Bolts
A carriage bolt, coach bolt or round head square neck boltis 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.
|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
|M2-M24:Cold Froging,M24-M100 Hot Forging,
Machining and CNC for Customized fastener
|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|
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