machine bolt

noun

1. a threaded fastener, used with a nut for connecting metal parts, having a thread diameter of about 1/4 inch (6.4 millimeters) or more and a square or hexagonal head for tightening by a wrench.

machine bolt

noun

1. a fastening bolt with a machine-cut thread

Example Sentences

When the boys bashed the box, it flew off its supports with a clang and satisfying rattle, left dangling by the machine bolt. 

From Forbes

Make a simple coil by winding about 50 turns of wire around a machine bolt core.

From Project Gutenberg

The Core is made of a 5⁄16 machine bolt, 2½ in. long.

From Project Gutenberg

In a portion of the mill building, originally used as a puddle mill, is located the bolt and nut works, wherein are made track bolts and machine bolts.

From Project Gutenberg

There are many forms of bolts in the market, but the ordinary "machine bolt," 5⁄16 in. in diameter, is best for our purposes.

From Project Gutenberg