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Screws, bolts and basic tools

3 sections, 38 items. Tap a name for details, or tap the picture to see where to buy.

Screws 1 items

Photo of Screw basics
Screw basics
screw, bolt, thread pitch
A general name for the threaded metal fasteners you turn to hold things together.

Screws, bolts, nuts and washers 25 items

Hex bolt
hex head bolt, hex cap screw
A bolt with a six-sided head that you tighten with a wrench.
Hex nut
hexagon nut
A six-sided nut that threads onto a bolt to tighten it.
Flat washer
plain washer
A thin round plate that sits under a bolt or nut to spread the load.
Spring washer
split lock washer, lock washer
A washer made from a split, twisted ring. It doesn't guarantee that a fastener won't vibrate loose, so if things keep loosening, check the joint and look into a locking method that suits it.
Wing nut
butterfly nut
A nut with wings so you can turn it by hand.
Nylon insert lock nut
nyloc nut, nylon lock nut
A metal nut with a nylon ring inside that grips the bolt so it resists coming loose.
Acorn nut
cap nut, dome nut
A nut with a rounded dome that covers the end of the bolt.
Eye bolt
eyebolt, lifting eye bolt
A bolt with a ring-shaped head that you can attach a rope or cable to.
U-bolt
U bolt clamp
A U-shaped bolt that wraps around a pipe or post to hold it in place.
Threaded rod
all-thread, all thread rod
A long rod threaded along its full length, cut to the size you need.
Set screw
grub screw, socket set screw
A small headless screw with only a hex socket, used to press against a shaft and lock a part in place.
Self-drilling screw
Tek screw, self-drilling metal screw
A screw with a drill-shaped tip that bores into thin sheet metal and fastens in one step.
Drywall screw
sheetrock screw
A black bugle-head screw for fastening drywall to wood or light steel studs. If the board is lifting, also check the framing and the board itself for damage.
Concrete nail
masonry nail
A hardened, heat-treated nail for driving into concrete or brick.
Blind rivet
pop rivet
A metal pin that permanently joins two thin sheets, working from one side only.
Cable tie
zip tie, wire tie
A plastic strap that locks once you pull it tight and won't come undone.
Hose clamp
worm gear clamp, hose clip
A metal band that tightens a hose onto a pipe or fitting so it can't slip off. If it leaks, also check for cracks in the hose and damage to the fitting.
Turnbuckle
wire tensioner
A fitting with threaded ends that you turn to adjust the tension of a rope or wire.
Wire rope clip
cable clamp, wire rope clamp
A U-shaped clip that clamps the end of a wire rope folded back into a loop. If one has come loose, also check the wire for damage and how it was installed.
Shackle
D shackle, bow shackle
A U-shaped connector with a removable pin for joining ropes and rings. If it is rusted, don't just replace the pin; inspect the body too and use a combination approved by the manufacturer.
S-hook
S hook, S shaped hook
A hook bent into an S shape so you can hang things from both ends.
Cotter pin
split pin
A pin you push through a hole and spread the legs of, to keep a bolt or pin from backing out.
Retaining ring
snap ring, e-clip, circlip
A ring that fits into a groove on a shaft or in a bore to keep parts from sliding off.
O-ring
rubber O-ring, O-ring seal
A round rubber ring that sits in a groove to stop water, oil or air from leaking.
Screw cover cap
screw cap cover, screw hole cover
A small cap that sticks on or snaps into a screw head to hide it.

Tool names 12 items

Hex key
Allen wrench, hex wrench, Allen key
An L-shaped tool for turning bolts with a hex socket.
Open-end wrench
spanner, combination wrench
A tool with an open jaw that grips a bolt or nut so you can turn it.
Adjustable wrench
crescent wrench, adjustable spanner
A wrench whose jaw size changes when you turn a screw.
Socket wrench
ratchet, ratchet wrench
A ratcheting handle that takes interchangeable sockets for turning bolts quickly.
Combination pliers
lineman's pliers, pliers
A gripping tool that holds things and cuts wire. Even with insulated handles, turn off the power before any electrical work.
Long-nose pliers
needle-nose pliers
Pliers with long, slim jaws for gripping in tight spaces.
Locking pliers
vise grips, locking wrench
Pliers that lock shut on whatever they grip. They are used on stripped screws whose heads stick out far enough to grab; a countersunk head sitting flush is hard to hold.
Tape measure
measuring tape
A tool with a coiled metal tape you pull out to measure length.
Spirit level
bubble level, level
A bar-shaped tool that uses the position of a bubble to check level and plumb.
Caliper
vernier caliper, digital caliper
A tool that measures outside diameter, inside diameter and depth down to 0.1mm.
Thread pitch gauge
screw pitch gauge, thread gauge
A tool with toothed leaves that you hold against a thread to find its pitch (the spacing between threads). To know whether a nut fits, you also need the diameter and thread series.
F-clamp
bar clamp
An F-shaped clamp that holds wood tightly together until the glue dries.