- round head bolt
- A general term including carriage bolts, cup head bolts, and mushroom head bolts.
Dictionary of automotive terms. 2015.
Look at other dictionaries:
head bolt — See cylinder head bolt octagonal head bolt round head bolt … Dictionary of automotive terms
bolt — A securing device upon which a nut is threaded. It usually has a nut type head. It is usually measured not so much by the size of the wrench required to secure the bolt; but by the diameter of the threads, the thread pitch, the length of the bolt … Dictionary of automotive terms
head —  The upper part of something.  A term used to express the increase of energy content in a fluid pumped, expressed in units of energy per unit of mass, usually simply ft (feet).  A part of the engine which covers the piston and creates… … Dictionary of automotive terms
bolt|head — «BOHLT HEHD», noun. 1. the head of a bolt. 2. (formerly) a round or oval matrass … Useful english dictionary
Bolt action — The term bolt action refers to a type of firearm action in which the weapon s bolt is operated manually by the opening and closing of the breech with a small handle, most commonly placed on the right hand side of the weapon. As the handle is… … Wikipedia
bolt action — Type of breech mechanism that was key to developing an effective repeating rifle. It combines the firing pin, a spring, and an extractor, all housed in or attached to the bolt. A projecting handle with a round knob moves the bolt back and forth.… … Universalium
Bolt manufacturing process — The bolt manufacturing process consists of three stages: * Heading * Thread rolling * Blackening Heading This initial process is a cold forging process (called heading ) used to produce a near net shape work billet. An important consideration in… … Wikipedia
bolt — bolt1 bolter, n. boltless, adj. boltlike, adj. /bohlt/, n. 1. a movable bar or rod that when slid into a socket fastens a door, gate, etc. 2. the part of a lock that is shot from and drawn back into the case, as by the action of the key. 3. any… … Universalium
bolt — I. noun Etymology: Middle English, from Old English; akin to Old High German bolz crossbow bolt, and perhaps to Lithuanian beldėti to beat Date: before 12th century 1. a. a shaft or missile designed to be shot from a crossbow or catapult;… … New Collegiate Dictionary
Usain Bolt — Bolt at Berlin World Championships 2009 Personal information … Wikipedia