Concrete Screw Anchor Bolt

Short Description:

UK Prudential concrete anchor is a high-strength screw anchor for concrete and masonry.

It is designed for optimum performance in both cracked and uncracked concrete.

The high-strength, easy-to-install concrete anchor has been tested and shown to provide outstanding performance in cracked and uncracked concrete under both static and seismic loading conditions.

The self-undercutting, non-expansion characteristics of the UK Prudential concrete anchor make it ideal for structural applications, even at reduced edge distances and spacings.

Recommended for permanent dry, interior non-corrosive environments or temporary outdoor applications.


- Qualified for static and seismic loading conditions
- Thread design undercuts to efficiently transfer the load to the base material
- No special drill bit required; designed to install using standard-sized ANSI tolerance drill bits
- Hex-washer head requires no separate washer and provides a clean installed appearance
- Carbon steel utilizes a specialized heat-treating process that creates tip hardness for better cutting without compromising the ductility
- Mechanical galvanizing intended for some pressure-treated wood sill plate applications; not for use in other corrosive or outdoor environments
- Size: 1/2 in. x 6 in etc., customizable according to customers’ requests

*Caution: Use a UK Prudential concrete screw anchor one time only – installing the anchor multiple times may result in excessive thread wear and reduce load capacity

Product Detail

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Product Detail


Flange bolts consist of an integral bolt composed of two parts: hexagon head, flange (the gasket under the hexagon and the hexagon fixing) and the screw (cylinder with external thread), which need to be matched with the nut.

To fasten the parts connecting two through holes.

Second, the use of hexagonal flange bolts

The head of the hexagonal flange bolt consists of two parts: the hexagonal head and the flange surface. Its "support area to stress area ratio" is larger than that of ordinary hexagonal head bolts, so this type of bolt can withstand higher pre-tightening force and prevent The loose performance is also good, so it is widely used in automobile engines, heavy machinery and other products. Hexagon head bolts with holes and slots on the head. When used, the bolts can be locked mechanically to prevent loosening.

Three, the basic classification of flange bolts

1. Hexagon head screw bolt with hole

A split pin hole is made on the screw to pass through the metal wire hole, which is mechanically loosened, and the loosening is reliable

2. hexagon head reamed bolts

Bolts with reamed holes can accurately fix the mutual position of the linked parts, and can withstand shear and extrusion in the transverse direction

3. cross recessed hexagon head bolts

Easy to install and tighten, mainly used for light industry, instrument and meter with small load

4. square head bolt

The square head has a larger size and a larger bearing surface, which is convenient for the wrench to jam its head or rely on other parts to prevent rotation. It can also be used in parts with T-slots to adjust the bolt position. Class C square head bolts are often used on rougher structures

5. countersunk bolts

Square neck or tenon has the function of stopping rotation, and it is mostly used in occasions where the surface of the connected parts is required to be flat or smooth.

6. T-slot bolt

T-slot bolts are suitable for occasions where bolts can only be connected from one side of the connected parts. After the bolt is inserted into the T-slot and then rotated 90 degrees, the bolt can not be pulled out; it can also be used in occasions where the structure is required to be compact.

7. Anchor bolts are specially used for pre-buried concrete foundations to fix the bases of machines and equipment.

They are mostly used for places and tooling that need to be disconnected frequently.

8. High-strength bolts for bolted spherical joints of rigid grid frame

High strength, mainly used for highway and railway bridges, industrial and civil buildings, towers, cranes.

The basic classification of several new hexagonal flange bolts is specifically introduced above. These are made in accordance with the latest market requirements and have their specific use scenarios. For example, T-slot bolts can be well connected with different styles. At the same time, these parts and components can also be used as an independent individual, such as each section or connection in the railway, which can be freely moved, so as to avoid dead knots in the connection and affect future maintenance and operation. It is widely used in the connection in a relatively compact Industrial environment.

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