What are hex bolts and hexagonal bolt specifications

Hexagon Head Bolt are often encountered in daily life, but because there are many specifications of hexagonal bolts, consumers also buy hexagonal bolts that cause certain difficulties. Let's take a look at what is a hexagonal bolt and the specifications of a hexagonal bolt.

Definition of hexagonal bolts: hexagonal bolts are hexagonal head bolts (partial thread) - C grade and hexagonal head bolts (full thread) - C grade, also known as hexagonal head bolts (rough), wool hexagonal head bolts, black iron screws.

The purpose of hexagonal bolts: with the nut, the use of thread connection method, so that the two parts become a whole. This connection is characterized by its removability, i.e. if the nut is unscrewed, the two parts can be separated. The product grade is C, B, A.

Material of Hexagon Head Bolt: steel, stainless steel, copper, aluminum, plastic, etc.

The national standard code of Hexagon Head Bolt: GB5780, 5781, 5782, 5783, 5784, 5785, 5786-86

Hexagonal bolt specifications: thread specifications: M3, 4, 5, 6, 8, 10, 12, (14), 16, (18), 20, (22), 24, (27), 30, (33), 36, (39), 42, (45), 48, (52), 56, (60), 64, parentheses are not recommended.
SCREW LENGTH: 20~500MM