n
A 29° trapezoidal threading used for various fittings and adapters.
n
A type of pliers used by plumbers that can be quickly changed in size and is primarily used for tightening nuts on water pipes.
n
A bolt whose head has a hexagonal socket.
n
A screw whose head has a hexagonal socket.
n
Synonym of Archimedes' screw
n
Alternative form of Archimedes' screw [(engineering) A screwlike device invented by Greek mathematician Archimedes, ca. 200 B.C.E., which when twisted inside a cylinder, raises water from a lower level to a higher level, allowing irrigation of fields.]
n
(engineering) A screwlike device invented by Greek mathematician Archimedes, ca. 200 B.C.E., which when twisted inside a cylinder, raises water from a lower level to a higher level, allowing irrigation of fields.
n
An internally threaded screw having a slotted head.
n
(automotive) A tool or device used to separate the bead from a tire rim.
n
A sliding pin or bar in a lock or latch mechanism.
n
(sciences) A clamp with two thumbscrews for holding two rods at a right angle to each other, for attaching laboratory equipment to a retort stand.
n
(mechanical trades) A heavy-duty handle, typically long and with a nonratcheting head, that turns a socket to break loose nuts and bolts that are very tightly fastened.
n
The portion of a half-coupling fastened to the end of a hose.
n
(firearms) The plate affixed to the rear end of a rifle stock.
v
(DIY, of a bit or a screwdriver) To slip out of the head of the screw being driven once the torque required to turn the screw exceeds a certain amount.
n
(engineering) A closed nut having a dome-like cap over the back, protruding part of the engaged screw or bolt.
n
A screw that is threaded along the entire length of the shaft and has a cap which is intended to rest against the side of the outermost material being screwed together when the screw has been screwed in to its maximum extent.
n
A type of screw commonly used to regulate the height of the action in a piano. The capstan screw is designed to be turned from the side, not the head, unlike an ordinary screw. A lever enters a hole in the side of the screw to turn it.
n
A type of bolt with a rounded head and a square shank which will not turn.
n
A piece which communicates to an object in a lathe the motion of the faceplate; a lathe dog.
n
A type of nut (internally threaded fastener) with castellations, typically to hold a retaining pin that is passed through a cross-drilled hole, such as a cotter pin.
n
A nut with rounded extensions projecting past the nut's opening. A cotter pin is inserted through a hole in the bolt and bent around the castle nut's projections to lock the nut in place.
n
A tool used for cleaning out screw threads, either as an integral part of a tap or die to remove waste material produced by the cutting tool, or as a separate tool to repair damaged threads.
n
(engineering) A secondary nut, screwing down upon the primary nut to secure it.
n
(mechanical engineering) A mechanical device that holds an object firmly in place, for example holding a drill bit in a high-speed rotating drill or grinder.
n
A U-shaped coupling having holes at each end, through which a bolt is run; used especially to fit attachments to a tractor or other vehicle as it allows a degree of rotation about the bolt.
n
(hardware) A large metal wood screw with a hexagonal head.
n
The screw-shaped worm of a typical corkscrew.
n
(mechanical engineering) A pin or wedge inserted through a slot to hold machine parts together.
n
A cylindrical recess, typically machined around a hole to admit a screw so that it sits flush with a surface.
n
a cylindrical recess, typically machined around a hole to admit a screw so that it sits flush with a surface.
n
A hole drilled into a surface so that, when a screw is inserted, the screw head is level with the surface.
n
The pin that attaches a connecting rod to a crank
n
A cylindrical metal rod with a perpendicular threaded hole passing through its side and a thin shallow slot at the top that allows for turning it with a screwdriver when fitted inside the workpiece.
n
A screw with a cross-shaped indentation for gripping and turning, as opposed to a flathead.
n
A wheel-shaped box with compartments, in which cotton cloth is washed by the revolution of the wheel in liquid.
n
A device used to cut an external screw thread. (Internal screw threads are cut with a tap.)
n
A component that holds a die that cuts screw threads.
n
(engineering) A mechanism that uses two screw threads to make small, precise adjustments to the spacing between two objects, as in focusing a microscope or moving the anvils of a micrometer.
n
(joinery) A hole bored through a tenon nearer to the shoulder than the holes through the cheeks are to the edge or abutment against which the shoulder is to rest, so that a pin or bolt, when driven into it, will draw these parts together.
n
A drift; a tool for setting bolts home.
n
A standard screw thread allowing a light bulb to be screwed into its socket.
n
A bolt with a looped head, or an opening in the head.
adj
(of a screwed connection) tightened using the fingers, and no tools, to a torque of about 15 to 20 inlb or 1.7 to 2.3 Nm
n
(plural only "flatheads") A type of screw or bolt designed to fit in a countersink so that it sits flush with a surface.
n
An adjusting screw which forms a foot, and serves to give a machine or table a level standing on an uneven place.
n
(wood turning) A lathe center having two prongs for driving the work.
n
A bolt or wedge made from wood or metal used for holding a machine part in place.
n
(mechanical engineering) The groove of a pulley.
n
A metal screw thread embedded in a workbench to facilitate the mounting and removal of specific tools.
n
A bolt that is used to secure the head of something (such as the cylinder head of an internal combustion engine).
n
A bolt with a hexagonal head.
n
A screw with a hexagonal head.
n
(engineering) A screw cut on a solid whose sides are arcs of the periphery of a wheel into whose teeth the screw is intended to work.
n
a drill for making holes in order to later use another drill to place screws in
n
A circular metal band or strip with a worm gear fixed to one end, designed to keep a pliable hose attached to a rigid circular pipe, or sometimes a solid spigot, of smaller diameter.
n
A bolt which has a mortise near the end, and is secured by a cotter or wedge instead of a nut.
n
(engineering) A screw for adjusting the distance between the stones in a grinding mill by raising or lowering the bridgetree.
n
A pin inserted through holes at the end of an axle or shaft, so as to secure a wheel or shaft-mounted device.
n
A second nut, screwed down onto another in order to prevent it slipping.
n
A bolt pressed into the hub on an axle, with the threaded end out to receive a lug nut.
n
(automotive) A specially shaped nut used to hold the wheels on an automobile.
n
an ISO metric screw thread size for screws with a nominal outer diameter of 3 millimetres
n
A screw designed for metal or a similar material, usually with no point and a relatively fine thread, intended for prepared, threaded holes.
n
A specialized screw fastener used with drywall as a hollow-wall anchor.
n
A type of roller bearing in which the load-bearing elements are longish, thin, cylindrical pins.
n
A screwdriver with a '+' shaped head for turning screws so socketed.
n
A screw with a Phillips head.
n
A screwdriver having a cross-shaped tip rather than the rectangular tip of a standard (flat-blade) screwdriver.
n
(bridge building) A conical nut applied temporarily to the threaded end of a pin, to protect the thread and guide the pin when it is driven into a hole.
n
Other type of pipe wrench used to rotate plumbing pipes.
n
(surgery) A screw used for connecting vertebrae to rods in spinal surgery, having a spherical head enclosed in a housing that allows a range of motion along several different axes relative to the housing.
n
A large nail or bolt fired or fixed into hard materials, such as steel and concrete, and used to hold or anchor them in place.
n
a jack raised or lowered by means of a pawl and ratchet operated by a reversing lever
n
A wall plug; a screw anchor.
n
A screw by which the dip of the digitals of the keyboard of an organ may be adjusted.
n
A screw having threads upon the opposite ends which wind in opposite directions.
n
(especially (Britain)) a spanner with a ring-shaped jaw with internal serrations which grip onto a nut or bolt.
n
A type of screw having a square recess in the head.
n
(chiefly Canada) A type of screwdriver having a square tip, designed to drive a Robertson screw.
n
A simple machine consisting of a stressed metal band and counter-rotating rollers within an enclosure, used in low-friction bearings etc.
n
A roundhead screw, one with a domed head.
n
(engineering) A collar on a shaft or other piece to prevent endwise motion.
n
(military) The pin of a hand grenade, which prevents accidental detonation.
n
A (usually) metal fastener consisting of a partially or completely threaded shank, sometimes with a threaded point, and a head used to both hold the top material and to drive the screw either directly into a soft material or into a prepared hole.
n
(US) A fixing that allows screws to be fitted into masonry walls; called a wall plug in UK English.
n
A device, resembling a die, for cutting the thread on a wooden screw.
n
A slot in the head of a screw, of various shapes, enabling a screwdriver to lock into the screw.
n
A lever for turning the nut of a screw.
n
A machine for the manufacture of screws, typically either by carving a groove into a thick nail, or by welding a thread formed of wire to a thin nail.
n
A nail with a spiral shank.
n
A small headless screw for fastening soles.
n
A steel pile having a wide helical blade attached at the foot; it is twisted into soft ground in order to provide a large bearing area
n
(engineering) A helical ridge formed around a cylinder, or a helical groove formed around the inner wall of a bore, used mostly on fasteners and their connection points.
n
A top that can be opened and closed by screwing.
adj
Having a fitting that screws into another part
n
The period of screw rotation during injection molding when the plastic can flow into the mold.
n
A hand or machine tool which engages with the head of a screw and allows torque to be applied to turn the screw, thus driving it in or loosening it.
n
(engineering) A mechanical task requiring relatively little skill.
n
The work of fastening or loosening a screw with a screwdriver.
n
(climbing) A kind of carabiner that is fastened by means of a screw thread.
n
The head of a screw, into which a screwdriver fits.
n
A laborer who uses screws to make adjustments
n
A metal plate having a graduated series of holes, with internal screws used in forming external screws.
n
Alternative spelling of screw thread [(engineering) A helical ridge formed around a cylinder, or a helical groove formed around the inner wall of a bore, used mostly on fasteners and their connection points.]
adj
Of a container: having a threaded lid (rather than a cork or push-on top).
adj
(chiefly of a screw) self-tapping with a drill point
n
(construction) A fastener similar to a self-tapping screw, which taps and drills its own hole during application.
adj
(engineering) Able to advance when turned, while creating its own thread.
n
A screw, with a hardened thread, that forms its own internal thread when driven into a relatively soft material (such as sheet metal).
n
Any screw used to hold or adjust a setting: frequently a set screw (sense 1), but may also be any other machine screw or thumb screw used for the purpose of setting.
n
Alternative spelling of set screw [A screw with threads along the entire length and no head. Typically, set screws have a hex or slot drive recessed in the threaded length; a grub screw or worm screw.]
n
A plastic-handled (officially yellow) pocket screwdriver (with clip) and a 2.5 inch shank, ending in a 1/8 inch slotted head.
n
A wheel having a groove in the rim for a rope to work in, and set in a block, mast, or similar; the wheel of a pulley.
n
A machine screw with a cylindrical unthreaded shoulder to allow for parts to rotate freely on the screw.
n
A double nut for attaching the joint-ends of rods or tubes.
n
A bolt that passes through a thimble that is placed between the parts connected by the bolt.
n
A type of wrench featuring multiple interchangeable socket heads (each designed to fit a particular size of bolt head or other fastener) which can be attached by a socket arrangement to a ratcheting wrench handle or other driver.
n
An ornamental hubcap that spins independently of the wheel
n
A bolt with a thread on each end, screwed into a fixed part at one end, receiving a nut upon the other.
n
The centre in the spindle of a turning lathe.
n
(mechanics) A device used to cut an internal screw thread. (External screw threads are cut with a die.)
n
A bolt with a head on one end and a thread on the other end, to be screwed into some fixed part, instead of passing through the part and receiving a nut.
n
A set screw used for adjusting.
v
To screw on; to fit the threads of a nut on a bolt.
n
A thixotropic liquid applied to screw threads that keeps them from loosening.
n
A device used to machine a screw thread.
n
A screw that can be turned with the thumb and fingers.
n
A tool used for installing or removing an automotive wheel, in the form of bar made of strong metal, with a chisel end for prying off the hubcap and a socket wrench end for loosening or tightening lug nuts.
n
(American spelling) A tire iron.
n
A type of screw head characterized by a six-pointed-star pattern.
n
A piece attached to, or forming part of, the hammer of a gunlock, upon which the mainspring acts and in which are the notches for sear point to enter.
n
A coupling device consisting of two eyelets or other connection points connected in screw threads. The joint in between can be turned to shorten or lengthen the device with mechanical advantage provided by the screw threads.
n
Alternative form of tire iron [A tool used for installing or removing an automotive wheel, in the form of bar made of strong metal, with a chisel end for prying off the hubcap and a socket wrench end for loosening or tightening lug nuts.]
n
a metal fixing in the shape of the letter U, which has a pin or screw bolt closure which fits across the two ends making a closed clamp
n
A chuck, as for a lathe, having jaws which can be moved simultaneously so as to grasp objects of various sizes.
n
(UK, regional, obsolete) The dish of a wheel; the angle at which spokes are fixed in its nave.
n
A nut with wing-like projections to provide leverage in turning with thumb and forefinger.
n
A screw designed for a wood or a similar material, with a point, a relatively coarse thread, a thick shank, and, usually, an unthreaded portion of the shank at the head end.
n
Alternative spelling of wood screw [A screw designed for a wood or a similar material, with a point, a relatively coarse thread, a thick shank, and, usually, an unthreaded portion of the shank at the head end.]
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