square nut

They are used where hex or square nuts won't fit.

Buy some long bolts, 3in long, in diameter, with slotted heads and square nuts.

Square nuts are typically mated with square-headed bolts.

Available with square nut.

A square nut is a four-sided nut.

The thread may either be of a speed nut form or have an integrated hex or square nut.

Square nuts are used along with flat washers in order to avoid damage from its sharp edges and helps to increase the strength of the fastener.

It is a square nut that has a sheet metal retainer that protrudes down two sides of the nut.

It can be easily removed by loosening two square nuts and rotating the cylinder until the mounting flange clears the nuts.

Square nuts can have standard, fine or coarse threading with platings of zinc yellow, plain, zinc clear, tin and cadmium, among others.

Also it was rusty in places, and parts had been repaired and strengthened with cross pieces secured by bolts and square nuts, some rusty and loose.

Hex & square nuts These nuts are very similar to standard square or hex nuts, but have a locating boss and welding projections.

Compared to standard hex nuts, square nuts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening (though also greater resistance to tightening).

She knelt down, bending low to follow his pointing finger, and saw the domed head of a thick bolt passing through the tubular iron leg and the angle-iron of the frame, with a square nut on the inner side.