Metric Bolts & Cap Screws
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Carriage bolts are commonly used in wood and are used to fasten wood parts, or wood and metal parts, together. Carriage bolts are also successful with sheet metal applications, where a standard sized neck may create an obstruction. P73.png
Lag screws are used in wood. The most common head style is hex, followed by square. The hex style of the lag screw is more easily wrenched. 708.png
Metric Carriage Bolts
Metric carriage bolts (also descriptively called round head square neck bolts) generally feature a broad, shallow round head and threading along part of the carriage bolt shank, and is inserted into pre-drilled holes. The square under the head keeps the carriage bolt from turning as the nut is tightened.Carriage bolts are commonly used in wood and are used to fasten wood parts, or wood and metal parts, together. Carriage bolts are also successful with sheet metal applications, where a standard sized neck may create an obstruction. P73.png
Metric Lag Screws
Metric lag screws (sometimes called lag bolts) are usually threaded up to ¾ of the way from point to head. The remainder of the lag screw's shaft is round and smooth.Lag screws are used in wood. The most common head style is hex, followed by square. The hex style of the lag screw is more easily wrenched. 708.png
