Heavy Duty Expansion Bolts

Heavy duty expansion bolt is a special thread connection piece, which is mainly used to fix pipe support / crane / bracket or equipment on walls, floor plates and columns. It consists of head bolt, expansion pipe, flat washer, spring cushion and hexagon nut.  Working principle of the bolt is to expand the bolt and the expansion pipe, thus increasing friction with fixed body and ensuring stability of fixing parts.

 

 

VIEW MORE

Product Details

Main role of heavy duty expansion bolts is to fix objects, usually used in construction, bridges, mechanical equipment and other fields. 

1.Convenient and quick installation: the bolts only need to be drilled and installed, without prefabricated holes. Installation process is simple and fast.

2.Strong anchoring force: expansion bolt produces friction force and anchorage force through expansion force, which can firmly fix object and has a high bearing capacity.

3.Wide range of application: expansion bolts are suitable for all kinds of materials, such as concrete, masonry, rock, etc.

When installing heavy duty expansion bolt, following points should be paid to:

1.Ensure verticality and depth of the hole to avoid weak installation of expansion bolt;

2.When tightening the bolts, strength should be moderate to avoid breakage of bolt or matrix;

3.Expansion bolt should be checked before use to ensure that there is no damage or deformation.

determine location of hole and hole size

Location of hole is very good to determine, where items should be installed, fixed according to situation;how big the hole is depends on specification of our expansion screw.

Specification of expansion screw is generally M6x50~120, M8x60~160, M10x60~200, etc. Number in front represents diameter of expansion screw, and number in the back represents length of  screw, and same diameter has different lengths. Knowing diameter of expansion screw, then drill bit can also choose the corresponding specifications.

Determine depth of the hole

Depth of the hole, is equal to the depth of heavy duty expansion tube, can be a little deeper, but do not play shallow, otherwise, after the hammer on expansion tube, it is easy to knock the pipe mouth, so there is no way to put the nail into the jar.

turn the screw

After expansion pipe into the hole, you can turn the screw, here according to our specific installation items, choose is to fix the items first, then screw the screw, or then hang the items, the specific situation can be analyzed.

 

Hot Tags: heavy duty expansion bolts, China heavy duty expansion bolts manufacturers, suppliers, factory, Furniture Confirmat Screws, Baby Anti Luce Clip, Retractable Indexing Plunger Pin, photovoltaic fasteners, lock, Full Thread Socket Hex Bolts