Bolt auger, an auger of large size; an auger to make holes for the bolts used by shipwrights. -- Bolt and nut, a metallic pin with a head formed upon one end, and a movable piece (the nut) screwed upon a thread cut upon the other end. See B, C, and D, in illust. above.
See Tap bolt, Screw bolt, and Stud bolt.
Bolt, v. t. [imp. & p. p. Bolted; p. pr. & vb. n. Bolting.] 1. To shoot; to discharge or drive forth.
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