New Mexico FFA
Agricultural Mechanics
Career Development Event
Supplies and Materials
Angle Iron
• One of the most common shapes of hot
rolled mild steel. It may be used for a
variety of construction projects.
Barbed Wire
• Used for fencing on farms and ranches to
contain livestock.
Box Nail
• Used for nailing stock that splits easily and
toe nailing in frame lumber. Flat head like
a common nail but a smaller diameter
shank
Cap Screw
•Fastener that joins two parts together
without the use of a nut.
Carriage Bolt
•Used primarily in wood where the square
neck can sink into the wood for holding
purposes.
Castellated Hex Nut
• Use with a cotter pin to insure tightness
and safety. The nut has a hex head with
slots in the castle like top for a cotter pin to
be inserted.
Chain Link Fence
• A woven wire fence commonly used for
yards, security and pets.
Chain Link Fence Bullet Cap
• A bullet cap is used to cover the top of the
pipe to prevent it from holding water. It
also gives the fence a more attractive
appearance.
Chain Link Fence Eye Cap
• This type of cap not only covers the pipe
but also holds the top rail.
Chain Link Fence Gate Hinge
• This type of hinge is commonly used to
attach a gate in to a post in a chain link
fence.
Chain Link Fence Tension Band
• The tension band is used to attach chain
link fencing to a post.
Chain Link Fence Corner Cap
• A corner cap covers the top of the pipe for
protection. It also allows for a change in
direction. The corner cap usually serves
as a stop for the top rail.
Channel
• Common shape of hot rolled steel used for
all types of manufacturing.
Coated Nail
• The surface coating keeps the nail from
slipping from the wood.
Cold Rolled Steel
• Commonly used for making bolts and
shafting where close tolerances of metals
of smooth finish are needed.
Common Nail
• Use for rough framing. It has a flat head
with a large diameter shank.
Drywall screw
• Use to provide a firm attachment of
drywall(sheetrock) to wood framing
Duplex Head Nail
• Double headed nail used in forming
lumber for concrete and other construction
jobs where the lumber needs to be taken
apart.
Eye Bolt
•Used for lifting heavy objects and/or
anchoring cables or wire rope.
Finishing Nail
• Used to attach wooden window frames
and wood trim. Very small shank and head
designed to be set below the surface of
the lumber.
Flat Head Screw
• Used as a fastener for most types of
materials. The flat head is designed to be
countersunk leaving a flush surface.
Flat or Cut Washer
• Used to increase bearing surfaces for bolt
heads and nuts.
Furring Nail
• Used for stucco and installing wire on the
outside of a structure.
Galvanized Roofing Nail
• Use to nail asphalt shingles, rolled roofing
and saturated felt paper as well as rolled
roofing.
Galvanized Steel
• Steel which is coated with a zinc
compound to prevent rust.
Gang Nail or Truss Clip
• Used in place of nails as a quick means of
fastening flat joints of wood such as roof
trusses.
Hex Nut
• It is a six sided nut and fits in close
clearance places. Available with NC or NF
threads.
I Beam
• Common shape of hot rolled steel used in
heavy construction such as main framing
members. The flange width is les than the
height of the beam.
Lag Bolt or Lag Screw
• A heavy duty screw designed for fastening
large objects to various types of materials.
Livestock Woven Wire
• Galvanized fencing material available in
different widths and a variety of patterns.
Lock Washer
• Used under nuts to prevent the nuts from
becoming loose and keep tension on the
bolt.
Machine Bolt
• Used where a wrench can hold both head
and nut and is available with a square or
hex head.
Masking Tape
• Available in widths from ½ “ to 2”.
Originally designed for masking around
areas to be painted.
Mild Steel – Hot Rolled
• Most common type of steel used for
fabrication. It will have a dull grey surface
when compared to cold rolled steel.
Available in many shapes and sizes
Mild Steel – Hot Rolled
• Most common type of steel used for
fabrication. It will have a dull grey surface
when compared to cold rolled steel.
Available in many shapes and sizes
Oval Head Screw
• Generally used to install hardware, the
head will protrude slightly above the
surface.
Plastic Tape
• Use as an insulator for wire splices
because of its high insulating value.
Plow Bolt
•Used to secure wearing parts on tillage
equipment. The head is tapered or counter
sunk to fit flush with the surfaces.
Poultry Wire Netting
• Used for fencing poultry, rabbits and other
domestic animals and game birds.
Round Head Screw
• Used like the flat and oval screws where
the head protruding is not a problem.
Screw Eye
• Used to hang objects, available in a
variety of sizes.
Self Locking Nut
• Used without a lock washer. The neck of
the nut locks down on the bolt threads and
prevents loosening.
Sheet Metal Screw
Used for sheet metal fabrication.
The screw will cut threads through
thin metal.
Smooth
Galvanized Wire
•An all purpose galvanized steel wire
commonly used for electric fencing.
Square Nut
• Used with carriage, machine, stove and
plow bolts.
Staple - Fencing
• U-shaped piece of galvanized wire used to
fasten fencing materials to wood posts.
Stove Bolt
•Used as a fastener for gauge metals.
Strap/Flat Steel
• A common shape of hot rolled mild steel
used for heavy construction.
Swivel
•A chain accessory consisting of two links
and a riveted pin which prevents chains from
kinking.
Toggle Bolt
•Fastener designed to anchor objects to
hollow walls where the nut cannot be
reached.
Tool Steel
• Higher in carbon content than regular
steel, it can be tempered for making tools
etc.
Round Tubing
• Used like square tubing, but it is round in
shape.
Square Tubing
• Used for construction of all types of
equipment, the height and width of the
tubing is the same.
Wing Nut
•Used on bolts that are loosened or removed
frequently.
Wire Brad
• Used for light carpentry work.
Slotted Hex Nut
•Used with a cotter pin for safety just like the
castellated nut. However, the slots are in
the hex-head instead of the castel-like top of
a castellated nut.