4.8 Hot-dip Galvanized T-bolt

The overall appearance of the bolt is close to the "T" shape, and it is often used for power chute fittings.

Product name:4.8 Hot-dip Galvanized T-bolt

Product Standards：GB 37 - 1988

Common Specifications：

Thread diameter：M8\M10\M12\M14\M16\M18\M20

Thread length：30mm\35mm\40mm\50mm\60mm\100mm\200mm\300mm

Product material：Q235b

Product grade：4.8

Surface treatment：hot dip galvanized

Industry use：Transportation Industry、achitechive

Production site: Handan City, Hebei Province, China

Means of transaction：TT/LC

MOQ：2Ton

Product packaging：Tray+Carton

Delivery period: 30 days

What are the uses and main classifications of T-bolts？

T-bolts are actually a big family. What are T-bolts?

The T-bolt is literally understood as the shape of the bolt is like a capital letter "T", which is well-known for its reputation.

Since T-bolts (some are also called T-screw or T-screw) are a big family, it must be full of descendants! I often encounter a lot of consultation on T-bolts in my work, and the problems are all kinds of strange. As a senior T-bolt manufacturing expert, I would like to introduce the main classification and related channels of T-bolts today:

1.1 T-bolts for HALFEN channel steel are most commonly made of 45# steel, forged, quenched and tempered; low carbon steel, more useful alloy steel, stainless steel 304 and 316 are also available; according to actual needs Select the material and mechanical property grade, surface treatment has chemical blackened, electric Galvanized, hot dip Galvanized, Dacromet, Dacromet after mechanical sherardization and so on.

1.2 T-bolts for aluminum alloy profiles, also known as hammer bolts, are made of SUS304 stainless steel and medium carbon steel. The surface of medium carbon steel T-bolts can be Galvanized or nickel-plated and dacromet-plated, etc. The material of carbon steel T-bolts It is 1045 medium carbon steel, produced by red satin process, and the grade after heat treatment is 8.8. Generally, it is a die plate bolt. The T-shaped screw can be directly placed in the groove, and it can be automatically positioned and locked during the installation process. The T-shaped bolt is generally matched. The use of blue nuts is a standard connection fastener when installing corner fittings. T-bolts are selected according to the groove width of the profile.

1.3 T-bolts for water supply system,

1.4 T-bolts for T-slots generally refer to the national standard GB37-88

1.5 T-bolts are used for construction fasteners, which are mainly locked and fixed by construction scaffolds, mainly low-carbon steels, which are generally matched with a flange nut. The most used are M12, M14 and American standard UNC1/2-13 and British standard BSW1/2-12 teeth.

By standard model:

2.1 National standard GB37-88 T-slot bolts, this standard specifies B-grade T-slot bolts with thread specifications M5-M48. This national standard specifies that the diameter is less than or equal to M39 and below, and the mechanical performance grade is generally 8.8. The mechanical performance grade with a diameter larger than M39 is generally negotiated with the customer; and the standard states: "Due to structural reasons, T-slot bolts are not Carry out wedge load and head-rod bonding strength test". This standard specification includes M5, M6, M8, M10, M12, M16, M20, M24, M30, M36, M42, M48, a total of 12 specifications, the shortest length is 25, and the longest is 300 .

Surface treatment is mainly chemical blackened and Galvanized passivation.

2.2 Machinery Industry Standard JB/T 8007.2-1999 | Machine tool fixture parts and components T-slot quick-release bolts;

2.3 German standard DIN787,

2.4 German standard DIN186 T-type square neck bolt;

2.5 German standard DIN188T double neck bolts;

2.6 German standard DIN261.

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