BT- Hardware

Rough Hardware

Bolts, screws, nails, and other metal fittings that concealed in a finished construction

Finish Hardware

refers to hardware such as hinges, locks, catches, that has finished appearance, functional fittings for doors, windows, cabinetry

Door Closer

Device that closes a door and controls the speed and closing action of the door.

Door Knob

a handle on a door that is turned to release the latch.

Push Plate

A protective plate of metal or plastic mounted vertically on the lock stile of the door

Kick Plate

A protective metal plate fastened to the bottom of a door to resist blows and scratches

Doorstop

A device for holding a door open, as a wedge or small weight

Bumper

A projecting rim, guard, pad, or disk for absorbing shock or preventing damage from bumping

Door chain

A short chain with a removable slide fitting that can be attached between the inside of a door and the doorjamb to prevent the door from being opened more than few inches without the chain being removed

Knocker

A hinged ring, bar, or knob on a door for use in knocking

Judas

peephole

Hinge

a jointed device or flexible piece on which a door swings

Mortise Hinge

A butt hinge mortised into the abutting surfaces of a door and doorjamb.

Half-Mortise Hinge

A hinge having one leaf mortise into the edge of a door in the other surface mounted to the door frame

Half-Surface Hinge

A hinge having one leaf mortise into a door frame and the other surface mounted to the face of the door

Flap Hinge

A hinge having two leaves surface-mounted to the adjacent faces of a door and doorframe.

Template Hinge

a mortise hinge manufactured to fit the recess and match the arrangement of holes of hollow metal doors and frames

Ball-Bearing Hinge

The hinge equipped with ball bearing between the knuckles to reduce friction and ensure ease of operation

Fast-Pin Hinge

The hinge having a non-removable pin

Loose Pin Hinge

A hinge having a removable pin so that a door can be unhung by separating two leaves

Loose Joint Hinge

A hinge having a knuckle formed from half of each leaf, with the upper half removable from the pin

Spring Hinge

A hinge containing a coiled spring in its barrel for closing the door automatically

Piano Hinge

A long, narrow hinge that runs the full length of the two surfaces to which its leaves are joined

Strap Hinge

A hinge having two long leaves for securing to the adjacent faces of a door and doorjamb

Dovetail Hinge

A strap hinge having leaves that are narrower at their junction than at their other extremities

Parliament Hinge

An H-shaped hinge having a protruding knuckle so that a door can stand away from the wall when fully opened

Paumelle Hinge

A hinge having a single, pivoting joint

Olive Knuckle Hinge

A paumelle having an oval-shaped knuckle

Invisible Hinge

A hinge consisting of a number of flat plates rotating about a central pin, with shoulders mortised into the door edge and doorframe so as to concealed when closed

Gravity Hinge

A hinge that closes automatically by means of gravity

Rising Hinge

A gravity hinge causing a door to rise slightly when opened

Lock

a device that keeps something (such as a door, window, or box) from being opened and that is usually opened by using a key

Latch

a device for holding a door, gate, or the like, closed, consisting basically of a bar falling or sliding into a catch, groove, hole, etc.

Rim Lock

A lock fastened to the face of the door, as opposed to one built into its edge

Cylindrical Lock

A lock housed within two holes bored at right angles to each other, one through the face of a door and the other in the door edge.

Mortise Lock

A lock housed within a mortise cut into a door edge so that the lock mechanism is covered on both sides

Bolt

a metal bar on a door or window that slides across to lock it closed

Deadbolt

a lock having square head

Grade 1

Commercial, Highest Grade security and durability

Grade 2

Residential, with excellent security and Durability

Grade 3

Residential, minimum acceptable Grade

latchbolt

A lock bolt having a beveled head that is moved into position by a spring except when retracted by a doorknob, or when pushed against the lip of the strike plate as the door is closed

Never Locked

A Closet door is...

push button lock

A Office Door Ideally has..

Addition of Deadbolts

A server room has

non locking

Break room Doors are..

Locked at all times

Medical Storage Closet Doors are..

Nail

A straight, slender piece of metal having one end pointed and the other enlarged and flattened for hammering into wood or other building materials as a fastener.

Penny

The designated length of a nail, from twopenny to sixtypenny. Symbol: D

Spike

A heavy nail for fastening timbers

Common Nail

A nail having a slender shank, a flat head and a diamond point

Finishing Nail

A nail having a slender shank and small barrel shaped head that is driven slightly below the surface and covered with putty or the like.

Box Nail

A nail having a flat head and a shank more slender than a common nail of the same length

Casing Nail

A nail having a small conical head and shank more slender than a common nail of the same length, used in finish work in which the head may remain visible.

Brad Nail

a small finishing nail, usually of the same thickness throughout, with a head that is almost flush with the sides or a head that projects slightly to one side.

Cut Nail

A nail having a tapering rectangular shank with a blunt point, made by cutting and shaping piece of round or elliptical steel.

Double Headed Nail

A nail used in building temporary structures, such as scaffolding and formwork, having a flange on its shank to prevent it from being driven in all the way and to leave the head.

Concrete Nail

A hardened-steel nail having a fluted or threaded shank and a diamond point for hammering into concrete concrete or masonry. Also called MASONRY NAIL.

Flooring Nail

A nail for fastening floor boards, having a small conical head, a mechanical deformed shank and a blunt diamond point.

Ring-Shank Nail

nails with a ridge pattern girding the nail. Increases holding strength in wood

Roofing Nail

A nail having a barbed, threaded or cement coated shank and a broad, flat head for fastening shingles or the like.

Face Nail

To fasten by nailing perpendicular to the face of the work.

Toe Nail

Nailing to the surface at an angle

End-Nail

To fasten by nailing into the end of a board parallel to the grain of the wood. End-nailing provides poor resistance to withdrawal.

Blind Nail

To secure by nailing in such a way that nail heads are not visible on the face of the work.

Screw

A metal fastener having a tapered, helical threaded shank and a slotted head, designed to be driven into wood by turning

Thread

The helical or spiral edge of a screw

Pitch

Distance between adjacent threads in a screw.

Countersink

enlarge and bevel the rim of (a drilled hole) so that a screw, nail, or bolt can be inserted flush with the surface.

Pilot Hole

a small hole drilled as a guide for the insertion of a nail or screw, or for the drilling of a larger hole.

Strip

To tear or damage the threads into an opening.

Wood Screw

A screw having a slotted head and a threaded point that permits it to form its own mating threads when driven into wood with a screwdriver.

Self-Tapping Screw

A coarse threaded screw designed to tap its corresponding female thread as it is driven. Also called TAPPING SCREW.

Lag Screw

A heavy, coarse-threaded screw having a square or hexagonal head driven by a wrench, used in areas inaccessible to the placement of a nut or where an exceptionally long bolt would be needed to penetrate a joint fully. Also called COACH SCREW, LAG BOLT.

Machine Screw

A metal fastener used with a nut or driven into a tapped hole, having a straight, threaded shank and a slotted or Phillips head for turning with a screwdriver.

Cap Screw

A metal fastener for machine parts having a straight shank held by threads tapped in the hole into which it is screwed

Sheet Metal Screw

A coarse-threaded screw for fastening sheet metal and other thin material.

Screw Eye

A screw having a ring-shaped head.

Setscrew

A screw, often without a head, threaded through a hole in one part tightly upon or into another part to prevent relative moment.

Thumbscrew

A screw having a flattened, knurled head designed to be turned by the thumb and forefinger.

Flat Head

A screw head having a flat upper surface and a conical bearing surface.

Oval Head

A screw head having a shallow, spherical shape with a conical bearing surface.

Round Head

A screw or bolt head having a spherical shape with a flat bearing surface. Also called BUTTON HEAD.

Truss Head

A screw or bolt having a shallow, spherical shape with a flat bearing surface.

Panhead

A screw or rivet head having a cylindrical shape with a rounded shoulder.

Fillister Head

A cylindrical screw head having a slightly domed upper surface and a flat bearing surface.

Bugle Head

A screw head having a flat upper surface and an underside shaped like the bell of a bugle.

Slotted Head

A screw head having a single slot, driven by a flat tipped screwdriver.

Phillips Head

A screw head having two partial slots crossing at right angles, driven by a Phillips screwdriver.

Allen Head

A screw head having an axial hexagonal recess driven by an Allen Wrench.

Security Head

A screw head designed to resist removal with a flat-tipped or Phillips screwdriver.

Bolt

A threaded metal rod fastener that fits into a nut

Carriage Bolt

A bolt having a rounded head, a flat bearing surface and a square shoulder for preventing rotation, used where the head may be inaccessible during the tightening.

Machine Bolt

A bolt having a flat bearing surface and a square or hexagonal head for turning with a wrench.

Stove Bolt

A small, coarse-threaded machine screw.

J-Bolt

A J-shaped metal rod threaded at one end to receive a nut.

U-Bolt

A metal rod bent in the shape of a U and threaded at each end.

Eyebolt

A bolt having a ring-shaped head to receive a hook.

Expansion Bolt

An anchor bolt having a split casing that expands mechanically to engage the sides of a hole drilled in masonry or concrete.

Toggle Bolt

An anchor bolt having two hinged wings that close against a spring when passing through a predrilled hole and open as they emerge to the inner surface of a hollow wall.