Fasteners

Nails Metal fasteners driven into the material it holds

Nails Common nails are used for general construction and have a flat head and diamond shaped point

Common Nails Used for construction such as framing because of their heads and size of shank

Nails Finishing nails have small heads that can be set below surface

Finishing Nails Used for trim because of small heads that can be countersunk below surface of wood

Nails Brads are thin, short nails with small heads

Nails Cut or casing nails are square on the ends and are used for tongue an groove board nailing

Casing Nails Used to fasten tongue and groove boards and to nail some trim work

Nails Others: roofing, box, staple, duplex

Spiral Groove Nails Used to fasten metal on roofs because the nails are less likely to work loose and cause leaks

Screws Fasteners with threads that bite into the material they fasten

Screws Kind based on material they hold – wood, sheet metal, drywall, etc.

Screws Kind based on metal they are made from – steel, brass, etc.

Screws Kind based on shape of head – flat, round, oval, pan, etc.

Flathead and Roundhead Screws Used to fasten wood to wood

Countersink A countersink cuts a “V” in the surface of wood so that a flathead screw will be flush or just below surface

Countersink Roundhead screws will be above surface unless a hole is drilled deep enough to hide head of screw

Screws Size is determined by diameter (gauge) and length (inches) of the shank

Bolts Fasteners that require a threaded nut

Bolts A lag bolt is sometimes called a lag screw because it has threads similar to a wood screw and does NOT use a nut

Lag Screws Are used with expansion shields to fasten wood to masonry materials such as concrete, bricks, or blocks

Bolts A carriage bolt has a round head over a square shank or shoulders

Carriage Bolt

Bolts A stove bolt may have either a round head or a flat head and the shank is threaded the entire length from bottom to top

Stove Bolt

Stove Bolts Are used to fasten lightweight metal structures

Bolts A machine bolt has either a square head or a hex head and is threaded on the bottom for about 1” It is NOT threaded all the way to the top

Machine Bolts Are used when a strong bolt is needed, but it needs to be removed to dismantle metal equipment on a regular basis

Bolts A cap screw is much like a machine bolt but has threads the entire length, is usually 2” or less in length, threads into something other than a nut, and may have different kind of head

Fasteners