carriage bolt

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carriage bolt

[′kar·ij ‚bōlt]
(design engineering)
A round-head type of bolt with a square neck, used with a nut as a through bolt.

carriage bolt

carriage bolts
A threaded bolt having a circular head, an oval or flat bearing surface, and a means (such as a square shoulder under the head) of preventing rotation of the bolt.
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References in periodicals archive ?
They are often referred to by the neck as round-head, square-neck carriage bolt or oval-neck connector bolt.
An impact gun is usually necessary to tighten the carriage bolts. And after months of wear and tear, sometimes a cutting torch is necessary to remove them.
Before attaching legs to board with wood screws, carriage bolts must be inserted in holes.
* Carriage Bolts. Carriage bolts are large-diameter bolts with rounded heads and square shoulders and are used for connecting structural pieces.
lag screws on the outside edges and 1/4 x 1-in, carriage bolts through the cabinet bottom on the inside edges.
Bore half-inch-diameter holes through each assembled joint to insert the hot-dipped, galvanized carriage bolts that will hold everything together.
The iron swing hangers are bolted completely through the swing beams with locking carriage bolts, while main fort supports use heavy duty bolt and lag screw construction.
4-2" x 5/16" carriage bolts (to attach and detach seat)
Insert half-inch diameter carriage bolts through the holes and connect.
However, 200 more new square-head and carriage bolts were needed to completely rebuild both the press box and power unit.