toggle bolt
DESCRIPTION
Toggle Bolt. When the screw is tightened a firm anchorage is made. Machine Screw. The head is slotted for a screwdriver and may be either round of flat. Typical sizes 4-12. Plow Bolt. No wrench is necessary to hold the bolt head. Machine Bolt. - PowerPoint PPT PresentationTRANSCRIPT
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Toggle Bolt
When the screw is tightened a firm anchorage is made.
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Machine Screw
The head is slotted for a screwdriver and may be either round of flat. Typical sizes 4-12.
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Plow Bolt
No wrench is necessary to hold the bolt head.
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Machine Bolt
The head and nut may be square or hexagon shaped.
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Lag Bolt
The bolt has a square or hex head with a tapered wood screw on the other end. Common sizes 1/4 to 1/2 in diameter, 2" to 12" long. Also called a Lag Screw.
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Carriage Bolt
Never use a washer under the head. Use to bolt wood.
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Cap Screw
It resembles a short bolt with a hexagon head with either coarse, fine, or metric thread. Term describes machine bolts and machine screws.
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Eye Bolt
It has an eye on one end and coarse or fine threads on the other.
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Grade 2 Bolt
Soft bolt commonly used for landscape applications and other applications where strength is not important.
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Grade 5 Bolt
Mildly hardened bolt used commonly in machinery and equipment applications. Three markings on the head.
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Grade 8 Bolt
Hardened bolt used where high tensile strength is required. 6 markings on the head.
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Hex Nut
It may have NC, NF, or metric threads.
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Wing Nut
Used where hand tightening (no wrench) is desired such as inspection covers.
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Square Nut
Used on farm implements with carriage bolts, machine bolts, stoves bolts and plow bolts.
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Self-Locking Nut
When tightened on a bolt the scored threads bite into the threads of the bolt preventing it from backing off.
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Castellated Hex Nut
Used with a cotter pin to prevent loosening or tightening. Top of the nut is smaller in diameter than the base.
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Cap Nut
A nut closed on one side to cover an exposed bolt.
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Slotted Hex Nut
It differs from the castellated nut in that there is no stepped-in castle-like top.
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Finishing Washer
This is a chrome plated countersunk washer used with oval head wood or metal screws.
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Malleable Iron Washer
Used where excess pressure or stress is exerted on wooden structures.
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Flat Washer
Used to prevent the nut from rubbing and becoming imbedded in the bolted material. Also called a Cut Washer.
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Fender Washers
The large holes are used for aligning or adjusting for proper fit.
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Lock Washer
It should not be used on wood.
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Set Screw
When screwed into a set collar the cup point makes an indentation in the shaft preventing the collar from vibrating loose.
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Sheet Metal Screws
Head types are flat, round, pan, oval and binding.
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Screw Eye
It may be described as a screw with an eye or ring head.
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Torx Head Screws
The head is similar to the Phillips but having a six point star shaped opening in the center of the head rather than a four point star.
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Self Tapping Screws
Screw has a sharp point with coarse threads that make their own threads when screwed into a pre-drilled hole that is smaller than the diameter of the screw.
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Self Drilling Screws
No pre-drilling is necessary when using a self drilling screw.
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Drywall Screws
All Are Phillips Except the Hex Wafer Head. Used to fasten drywall. Bugle shaped flat head.
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Screw Hook
Can be screw into wood walls or concrete or masonry when pre-drilled and a plastic or lead anchor is used.
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Deck Screws
A straight shank wood screw with a bugle head. Commonly made with a Phillips or square drive 2 1/2" of longer. Coated to prevent rusting.
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Wood Screws
A tapered screw with a round, oval, or flat head. The threaded portion of the screw is tapered with a very coarse thread and cuts its own thread as it is turned into the wood. Shown L-R oval head, round head, flat head Phillips, and flat head slotted.
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Duplex-Head Nail
The point is sharp, and there are two heads, one above the other, to make removal easy. Common sizes 6d, 8d, 16d.
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Box Nail
Roughly speaking, d equals 1/4 inch in length, but this is not constant. The shank is smaller in diameter than the common nail to prevent splitting of the wood. Common sizes 2d to 16d
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Common Nail
Roughly speaking, d equals 1/4 inch in length, but this is not constant. The shank is larger in diameter than the box nail making the nail less likely to bend. Common sizes 2d – 20d. Sizes larger then 20d are often called spikes.
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Finish Nail
The sizes range from 2d to 20d. The nail is designed to be counter sunk and the hole filled.
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Galvanized Nail
Common, box, and finish nails are available for exterior use with a galvanized coating. The coating may be hot dipped (thicker) or electro-plated (EG).
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Spiral Shank Nails
Designed for the construction and repair of wood pallets. These spiral shank nails are also good for re-nailing wagon beds, trailers.
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Wire Brad
The size is expressed in wire gauge and ranges from 1/4 to 1 1/2 inches long.
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Cement Coated Nails
Sizes range from 2d to 16d. Commonly found in a green coating in 8d and 16d ("sinkers").
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Blue Plaster Board Nail
The range in size is 1 to 1 1/2 inches.
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Aluminum Roofing Nails
Sizes range from 1 to 1 1/2 inches long. Used to apply aluminum roofing.
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Lead-Head Nails
Lead washer is to prevent oxidation between the head of the nail and the galvanized roofing and also prevents leakage.
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Galvanized Shingle Nail
The 3d is generally used for shingling.
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Galvanized Roofing Nail
The head is about 1/2 inch in diameter, and the length ranges from ¾ to 2 inches.
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Furring Nail
This allows the wire to become a reinforcing agent and the nails hold the plaster to the wall.
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Corrugated Fastener
The size is 1/4 to 1 inch in depth and 2 to 7 corrugations. Used to fasten wood.
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Cotter Pin
This prevents the nut from working loose. Also called a Cotter Key.
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Soft Iron Rivet
The size is based on length and diameter.
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Pop Rivet
A pop rivet tool is required to set the rivet.
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Pop Rivet Tool
Tool is adjustable to use the various sizes (diameter) of rivets available.
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Rivet Set
A rivet set is a small bar of steel with a hole drilled in the end to receive the rivet, and with a cup-like depression for forming a round head on the rivet.