It was found that hexhead bolts offer more corners for the Wrench to grip.
A stop sign is an octagon, not a hexagon. most Nuts & bolt heads are hexagons. The head of an Allen Wrench is a hexagon.
a hexagon has 6 sides same as a nut or bolt head cubes also have 6 sides bet you didn't think of that!
A bolt with no head is commonly referred to as a screw.
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An allen bolt is a bolt with a head that requires an allen key to turn it.
To be able to fit any bolt head that you find.
Head bolt specs for the '86 Samurai are 46 to 50.5 in. lbs.
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