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D-head (clipped head) nail – a common or box nail with part of the head removed for some pneumatic nail guns; Double-ended nail – a rare type of nail with points on both ends and the "head" in the middle for joining boards together. See this patent. Similar to a dowel nail but with a head on the shank.
The spike maul, also known as a spiking hammer, is a type of sledgehammer with a long thin head which was originally used to drive spikes. [ 30 ] [ 31 ] Manual hole drilling and spike or screw insertion and removal have been replaced by semi-automated or automated machines, which are driven electrically, by pneumatics, by hydraulics, or are ...
Hex head fasteners: Known for their high torque capacity, hex head fasteners are easily driven with a spanner or wrench, ideal for heavy-duty applications. Square head fasteners: Offering increased wrenching area and reduced risk of rounding off, square head fasteners are used in high torque applications.
Slot screw drives have a single horizontal indentation (the slot) in the fastener head and is driven by a "common blade" or flat-bladed screwdriver.This form was the first type of screw drive to be developed, and, for centuries, it was the simplest and cheapest to make because it can just be sawed or filed.
Nail guns vary in the length and gauge (thickness) of nails they can drive. Air compressor supplies air into a nail gun The smallest size of fasteners are normally 23 gauge (0.025 inches or 0.64 millimetres in diameter), commonly called "pin nailers" and generally have only a minimal head.
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Roller chain and sprocket The sketch of roller chain, Leonardo da Vinci, Codex Atlanticus. Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.