Bolt

Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!

Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!

T-shaped bolt, from the appearance, has a T-shaped head. The T-bolt can be directly inserted into the aluminum groove, and it can automatically position and lock during installation. It is often used in conjunction with flange nuts and is a standard matching connector when installing corner pieces. It can be selected and used according to the width of the groove and different series of profiles. T-bolts belong to movable anchor bolts.

Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!

The DIN 933 standard is applicable to fully threaded hexagonal bolts with a thread diameter of M1.6-M52, and its product grades are A and B.

The A-level regulations are: d ≤ 24mm and l ≤ 10d or l ≤ 150mm (whichever is smaller); The regulations for Class B are: d>24mm or l>10d or l>150mm (whichever is smaller). Among them, d represents the thread diameter, and l represents the bolt length. Different product grades have corresponding values for opposite edges s, diagonal e, thickness k, and length tolerance.

Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!

Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!

A flange bolt is an integrated bolt composed of a hexagonal head and a flange plate (the gasket below the hexagon and the hexagonal fixing are integrated) and a screw (a cylindrical body with external threads), which needs to be matched with a nut and used to tighten the parts connecting two through holes.

DIN 913, DIN 914, DIN 915, and DIN 916 are German standard grades for industrial fasteners known as "hexagon socket bolts". Among them:

DIN 913 is a hexagonal flat end set screw;

DIN 914 is an internal hexagonal cone end set screw;

DIN 915 refers to hexagonal convex end set screws;

DIN 916 is a hexagonal concave end set screw.

Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!

Internal hexagonal screws are commonly used in machinery, with the main advantages of being easy to tighten, disassemble, and less prone to slipping. Internal hexagonal wrenches are usually bent at a 90 ° angle, with one end long and the other short. When using the shorter end to tighten screws, holding the longer end can save a lot of force and better tighten the screws. The longer end has a round head (a hexagonal cylinder similar to a sphere) and a flat head, which can be easily inserted into the screw hole for easy disassembly. The manufacturing cost of the external hexagonal wrench is much lower than that of the internal hexagonal wrench. Its advantage is that the screw head (the position where the wrench is subjected to force) is thinner than the internal hexagonal wrench, and some places cannot be replaced by the internal hexagonal wrench. Machines with low cost, low power intensity, and low precision requirements use much fewer internal hexagonal screws than external hexagonal screws.

Grade: 4.8, 8.8, 10.9, 12.9, Material: Q235, 35K, 45K, 40Cr, 20Mn Tib, 35Crmo, 42Crmo, Surface Treatment: Blackened, Electrogalvanized, Dacromet, Hot-dip Galvanized, Galvanized, etc!

Carriage bolts are divided into large half round head carriage bolts (corresponding to standards GB/T14 and DIN603) and small half round head carriage bolts (corresponding to standards GB/T12-85) according to their head size. A carriage bolt is a type of fastener consisting of a head and a screw (a cylindrical body with external threads), which needs to be matched with a nut and used to tighten and connect two parts with through holes.