What is a Hex Bolt?

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What is a Hex Bolt?
A Hexagon Bolt, commonly known as Hex Bolts, are
threaded fasteners with a hexagonal head shape.
This type of bolt is made to be installed using
a spanner. Hexagon Bolts are preferred for their
robust shape, which makes them suitable for more
heavy duty fastening applications. Hexagon bolts
are also usually available in larger sizes than
alternative fasteners. Hex bolts are six sided
heads that are the industry standard for
fasteners with forged heads. American Society for
Testing and Materials (ASTM) A307 grade A bolts,
all SAE hex bolts, and various other common
specifications require a standard (finished)
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• hex head. For specifications such like as A307
  grade B, A325 and A490 that require a heavy hex
  pattern, points to dimensional tolerances for
  heavy hex bolts or structural bolts.
• Hex Bolts are known as
• Hex head bolts
• Cap screws
• Hex cap screws
• Hex head cap screws
• Machine bolts
• Hex machine bolts
• Hex head machine bolts
• Tap bolts
• Hex tap bolts
• Hex head tap bolts

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Length and Sizes of Hex Bolts The size and
length of inch series fasteners is indicated
in inches, generally fractional rather than
decimal. Size points to the nominal diameter of
the bolt while length is just thathow long the
bolt is. Hex bolts length in size from 1/4" to 4"
in diameter 1/4" to 1 1/2" sizes are widely
available. Lengths range from 3/8" to 24" 1/2"
to 10" is typical. From 3/8" to 1", lengths are
in 1/8" increments. Between 1" and 4", 1/4" steps
are normal. From 4" to 8", lengths generally
increase by 1/2". Longer than 8", expect 2"
steps. Length is evaluated from the under head
bearing surface to the extreme point that is
threaded at end of the bolt. Larger lengths are
not constructed in short ranges, similarly
smaller lengths are not available in long
ranges. Not all hex bolts are easily available
in all sizes and lengths. The bolt must be long
enough to allow at least two full threads to
extend beyond the nut face after tightening,
which ensures full thread engagement with the
nut. However, there should be two full threads
exposed on the head side of the nut to make sure
the nut can be properly tightened. More exposed
threads within the grip the area between the
head and the nut will result in a "springier"
bolt. It is also recommended that threads should
not be in the shear planes.
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Applications of Hex Bolts Hex bolts might be
used for many different applications that include
fastening wood, steel, and other construction
materials for projects such as docks, bridges,
highway structures, and buildings. Hex bolts
with forged heads are also widely used as headed
anchor bolts. If you want quality Industrial
fasteners for your business, you can call us at
971-506349042, 971 6 575 1335. Or Visit
www.classicmetallic.com Email us at
sales_at_clmet.com / info_at_clmet.com for ordering
industrial fasteners.