I, the unut mechanical anchor bolt!  I am composed of a sleeve, a screw, a gasket, a shrapnel, and a nut.  Nice to meet you for the first time.  I hope you can give me more advice.  My definition is: In GB50367-2013 "Code for Design of Strengthening of Building Concrete Structures", my definition is:

After drilling a straight hole in the concrete base material, reaming at the bottom of the hole again.  The reamed cavity and the expanded key piece of the anchor bolt form an interlocking mechanism to realize post-anchoring connection.

The undercut mechanical anchor bolt with a real built-in mechanical locking effect can be used to bear a relatively high load on cracked concrete (concrete tension zone) and can be used to bear impact and seismic loads.

Applicable base materials: cracked concrete and non-cracked concrete: C20/25 to C50/60

Material:

●M10~M20: Grade 5.8/8.8/10.9 galvanized carbon steel ●M10~M20: 304 316 stainless steel

Surface anti-corrosion treatment: ●Cold galvanized 5μm≤thickness≤14μm ●Hot galvanized thickness≥50μm

Only through repeated tempering can good steel be tempered!  Passed multiple tests:

●Ultimate installation torque performance test ●2 million times fatigue resistance test ●120min ultimate fire resistance test ●Special seismic performance test

Only by proficient use can value be exerted!

Construction and installation process:

Use an ordinary impact drill to drill holes according to the specification and model of the anchor bolt to be installed, and determine the drilling diameter and depth;

Use a reaming bit for secondary reaming;

Use a manual pump or pneumatic pump to clean the hole.  The hole must be cleaned thoroughly;

Before installation, tighten each component first.  Ensure that there is no looseness, and then insert the anchor bolt into the formed hole;

Use a fixture on the bolt to clamp the bolt to ensure that the screw does not rotate.  Tighten the nut with a torque wrench;

Remove the fixture, loosen the nut, install the connecting piece to be fixed, and apply torque according to the requirements of the specification and model of the anchor bolt with a torque wrench.  The installation is completed.

Although I am small, I have a wide range of applications!

Application scope:

.  Fixing of curtain wall keel corner brackets;

.  Fixing of steel structures and heavy loads;

.  Machinery, conveyor belt systems, and storage systems;

.  Anti-collision guardrails and sound barriers;

.  Caulking cover plates and stair anchoring;

.  Fixing of catenary cantilevers and escape platforms;

.  Post-anchoring applications in rail transit, roads and bridges, and concrete tension zones;

.  Concrete overlay and structural joint reinforcement.

The above is a general introduction to my undercut mechanical anchor bolt.  If you still have questions about me, you can consult my manufacturer in detail!  Shanghai Shibang is the manufacturer that produces and creates me, allowing me to shine better in the field of building reinforcement.