Home 5/16-18 x 1 1/4" Carriage Bolts / Steel / Hot Dip Galvanized (Quantity: 600 pcs)

5/16-18 x 1 1/4" Carriage Bolts / Steel / Hot Dip Galvanized (Quantity: 600 pcs)

Availablity: In stock
Carriage Bolts
Low Carbon
Manufactured to B18.5 specifications
Tensile Strength: 60,000 psi. min.
Coarse Thread

SKU: 757870

$69.99
In stock
SKU
757870
A carriage bolt, coach bolt or round head square neck bolt is a form of bolt used to fasten metal to wood. It is distinguished from other bolts by its shallow mushroom head and that the shank cross-section 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 in a metal strap, 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 to bare timber, the squared section giving enough grip to prevent rotation. Carriage bolts are extensively used in security fixings, such as the Brenton Bolt where the bolt must only be removable from one side. The smooth domed head and square nut below prevent the carriage bolt from being unlocked from the insecure side. Carriage bolt made from low or medium carbon steel with a galvanic zinc finish applied. Hot-Dip Galvanized Steel Carriage: Same design advantages as a low carbon carriage bolt but with a thicker protective coating for outdoor use. Often used in outdoor furniture.
More Information
EAN 8945136210409
Material Steel
Size 5/16-18
RoHS On Request
Technical File 1 pdf
Technical File 2 pdf
Carton Quantity 600
Unit of Measure Pounds
Finish Hot Dip Galvanized
Length 1 1/4"
Measurement System Inch
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