Carriage Bolts

A carriage bolt is a type of threaded fastener designed to be used with wood, although specialized versions can be used to fasten metal components.

Carriage Bolts

Available Materials:

International Standards:

Mechanical Properties:

Standard Sizes:

Draws

The design of a carriage bolt includes a large round, domed head with an externally threaded bolt projecting from it. The head is typically at least twice the diameter of the bolt shaft, and usually does not have slots for a screwdriver or other driving device. Underneath the head, there is a square fitting that grips the wood as the bolt is placed and fastened, keeping it from twisting or turning and otherwise maintaining a snug fit.

Item Size Item Size
M06 6 ~ 150 mm  1/4 " 1/2 ~ 6 " 
M08 10 ~ 200 mm  5/16 " 1/2 ~ 6 " 
M10 12 ~ 300 mm  3/8 " 1/2 ~ 8 " 
M12 16 ~ 300 mm  7/16 " 3/4 ~ 8 " 
M14 20 ~ 300 mm  1/2 " 3/4 ~ 8 " 
M16 25 ~ 300 mm  9/16 " 1 ~ 8 " 
M18 25 ~ 300 mm  5/8 " 1 ~ 12 " 
M20 25 ~ 300 mm  3/4 " 1 ~ 12 " 
M22 40 ~ 300 mm  7/8 " 1 1/2 ~ 12 " 
M24 50 ~ 250 mm  1 " 2 ~ 10 " 

Standard Sizes:

Draws

Item Size Item Size
M06 6 ~ 150 mm  1/4 " 1/2 ~ 6 " 
M08 10 ~ 200 mm  5/16 " 1/2 ~ 6 " 
M10 12 ~ 300 mm  3/8 " 1/2 ~ 8 " 
M12 16 ~ 300 mm  7/16 " 3/4 ~ 8 " 
M14 20 ~ 300 mm  1/2 " 3/4 ~ 8 " 
M16 25 ~ 300 mm  9/16 " 1 ~ 8 " 
M18 25 ~ 300 mm  5/8 " 1 ~ 12 " 
M20 25 ~ 300 mm  3/4 " 1 ~ 12 " 
M22 40 ~ 300 mm  7/8 " 1 1/2 ~ 12 " 
M24 50 ~ 250 mm  1 " 2 ~ 10 " 

In a variation on the basic carriage bolt, the square fitting under the rounded head is replaced with ribbing that holds the bolt in place when it is used with other metal components. The length of the bolt itself will vary according to its intended use, as will the diameter of the bolt and bolt head, regardless of the type of materials being fastened.

A cross fitting allows four direction transition in pipeline fields.



Fitting specification, Standard and identification

There are different varieties of pipe fittings made of various materials and available in various shapes and sizes.



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