Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors，anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.
Key Features(Undercut anchors concrete, concrete anchors,concrete fixings anchor bolts,undercut anchors)
Consist: anchor rod, undercut lock, spacer sleeve, washer, nut
Material: alloy steel grade 5.8, 6.8, 8.8, 10.9, 12.9; stainless steel A4-80
Finish:
Anti-corrosive treatment:
galvanized steel≥5μm, applicable in indoor and outdoor surroundings
hot dipped galvanized steel≥45μm, applicable in corrosion environment
Surface treatment can be required for long-lasting complex environment with other process of anti-corrosion treatment
Description(Undercut anchors concrete, concrete anchors,concrete fixings anchor bolts,undercut anchors)
● High load-bearing capacity, excellent properties of anti-fatigue, anti-seismic, safety and reliability
● No expansion stress allows for small edge distance and spacing installation fixing
● Suitable for special environment where embedded rebars and chemical anchors cannot be used
● Different materials according to different environment, a full line of specification, to maximize its own working property to better satisfy customers’ requirements
● With special reaming drill bit for secondary drilling operation, fast and easy to install
Characteristics(Undercut anchors concrete, concrete anchors,concrete fixings anchor bolts,undercut anchors)
● Suitable for the highest safety requirement of cracked concrete, excellent resistance of seismic and impact load
● High performance of load-bearing capacity, the effectiveness of anchorage is similar to pre-embedded part
● The built-in mechanical key lock and special reaming drill bit make the anchor better keying effect; it has less torque load during anchorage installation
● The opened lock of the anchor holds the wall of drilled hole, forming the keying effect and providing superior load-carrying capacity to finish the anchorage.
Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors，anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.
● Connections and installation for all kinds of curtain wall and steel-work constructions
● Connections and installation for large-scale equipment such as industrial plant, crane, nuclear power station, etc.
● Baffle plate, hanging plate, acoustical plate, security gates and windows fixing
● Widely used for various pipeline and cable bracket installation in bridge, railway track, subway engineering construction, etc.
Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors，anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.
Installation Guide (Undercut anchors concrete, concrete anchors,concrete fixings anchor bolts,undercut anchors)
Pre-Set type (Undercut anchors concrete, concrete anchors,concrete fixings anchor bolts,undercut anchors)
● Drill the hole to proper depth and diameter per specifications using ordinary impact drill.
● Blow the hole clean using manual/electric air pump.
● Use special reaming drill bit for secondary drilling operation and then blow the hole clean using manual/electric air pump.
● Before installation, firstly finger-tighten the anchor with its all components to ensure the anchor is tightened. Then place the anchor into the drilled hole and use a hammer and setting tool to drive the anchor until the washer and nut are tight against the surface of the base material.
● Tighten the nut using torque wrench.
● Remove the nut and install the plate fixture, then re-tighten the nut and washer over the fixture using torque wrench to required installation torque.
Through-Set type (Undercut anchors concrete, concrete anchors,concrete fixings anchor bolts,undercut anchors)
● Drill the hole to proper depth and diameter per specifications using ordinary impact drill.
● Blow the hole clean using manual/electric air pump.
● Use special reaming drill bit for secondary drilling operation and then blow the hole clean using manual/electric air pump.
● Before installation, firstly finger-tighten the anchor with its all components to ensure the anchor is tightened. The bottom of the threaded rod should be flush with the bottom of the cone.
● Then place the anchor through the fixture and use a hammer and setting tool to drive the anchor into the drilled hole until the washer and nut are tight against the surface of the fixture.
● Tighten the nut using torque wrench and tighten the nut to the required installation torque. Then the installation is finished.
Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors，anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.
Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors，anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.
| The average failure load, design load, and recommended load of a single anchor in large spacing and edge distance | |||||||||
| Pre-Set type C20/25 concrete base material | |||||||||
| uncracked concrete | |||||||||
| Size | M10/16 ×60 | M12/18 ×100 | M12/18 ×120 | M16/22 ×130 | M16/28 ×160 | M16/28 ×200 | M20/35 ×210 | M20/35 ×250 | M24/38 ×285 |
| Effective embedmentdepth hef [mm] | 60 | 100 | 120 | 130 | 160 | 200 | 210 | 250 | 285 |
| Drilled hole depthho [mm] | 75 | 115 | 135 | 145 | 175 | 215 | 225 | 265 | 300 |
| Drilled hole dia.do [mm] | 16 | 18 | 18 | 22 | 28 | 28 | 35 | 35 | 38 |
| Average failure load | |||||||||
| Tensile force0°[kN] Nu | 31.4 | 67.4* | 67.4* | 100 | 125.6* | 125.6* | 196* | 196* | 282* |
| Shear force90°[kN] Vu | 27.8* | 40.4* | 40.4* | 75.4* | 75.4* | 75.4* | 117.6* | 117.6* | 169.2* |
| Design load | |||||||||
| Tensile force0°[kN] NRd | 14.5 | 44.9 | 44.9 | 46.3 | 83.7 | 83.7 | 130.7 | 130.7 | 188 |
| Shear force 90°[kN] VRd | 18.5 | 26.9 | 26.9 | 50.2 | 50.2 | 50.2 | 78.4 | 78.4 | 112.8 |
| recommended load | |||||||||
| Tensile force0°[kN] Nu | 10.4 | 32.1 | 32.1 | 22.1 | 59.8 | 59.8 | 93.4 | 93.4 | 134.2 |
| Shear force 90°[kN] Vu | 13.2 | 19.2 | 19.2 | 35.9 | 35.9 | 35.9 | 56 | 56 | 80.6 |
| Base material size, minimum spacing and edge distance | |||||||||
| Min.spacingsmin [mm] | 60 | 100 | 100 | 130 | 160 | 160 | 250 | 250 | 285 |
| Min.edge distancecmin [mm] | 60 | 100 | 100 | 130 | 160 | 160 | 250 | 250 | 285 |
| Min. base materialthicknesshmin [mm] | 120 | 200 | 200 | 260 | 320 | 320 | 500 | 500 | 570 |
| Installation torquetinst [mm] | 40 | 60 | 60 | 100 | 140 | 140 | 300 | 300 | 500 |
| The average failure load, design load, and recommended load of a single anchor in large spacing and edge distance | |||||||||
| Pre-Set type C20/25 concrete base material | |||||||||
| cracked concrete | |||||||||
| Size | M10/16 ×60 | M12/18 ×100 | M12/18 ×120 | M16/22 ×130 | M16/28 ×160 | M16/28 ×200 | M20/35 ×210 | M20/35 ×250 | M24/38 ×285 |
| Effective embedmentdepthhef [mm] | 60 | 100 | 120 | 130 | 160 | 200 | 210 | 250 | 285 |
| Drilled hole depthho [mm] | 75 | 115 | 135 | 145 | 175 | 215 | 225 | 265 | 300 |
| Drilled hole dia.do [mm] | 16 | 18 | 18 | 22 | 28 | 28 | 35 | 35 | 38 |
| Average failure load | |||||||||
| Tensile force 0°[kN] Nu | 22.1 | 47.5 | 62.4 | 70.4 | 96.1 | 125.6* | 144.6 | 187.7 | 228.5 |
| Shear force90°[kN] Vu | 27.8* | 40.4* | 40.4* | 75.4* | 75.4* | 75.4* | 117.6* | 117.6* | 169.2* |
| Design load | |||||||||
| Tensile force0°[kN] NRd | 10.2 | 22 | 28.9 | 32.6 | 44.5 | 83.7 | 66.9 | 86.9 | 105.8 |
| Shear force90°[kN] VRd | 18.5 | 26.9 | 26.9 | 50.2 | 50.2 | 50.2 | 78.4 | 78.4 | 112.8 |
| recommended load | |||||||||
| Tensile force0°[kN] Nu | 7.3 | 15.7 | 20.6 | 23.3 | 31.8 | 59.8 | 47.8 | 62.1 | 75.6 |
| Shear force 90°[kN] Vu | 13.2 | 19.2 | 19.2 | 35.9 | 35.9 | 35.9 | 56 | 56 | 80.6 |
| Base material size, minimum spacing and edge distance | |||||||||
| Min.spacing smin [mm] | 60 | 100 | 100 | 130 | 160 | 160 | 250 | 250 | 285 |
| Min.edge distance cmin [mm] | 60 | 100 | 100 | 130 | 160 | 160 | 250 | 250 | 285 |
| Min. base materialthicknesshmin [mm] | 120 | 200 | 200 | 260 | 320 | 320 | 500 | 500 | 570 |
| Installation torquetinst [mm] | 40 | 60 | 60 | 100 | 140 | 140 | 300 | 300 | 500 |
● The values are suitable for: correct installation, no influence of spacing and edge distance, minimum base material thickness.
● All the data applies in C20/25 concrete base material. If the base material grade changes, the corresponding concrete influence coefficient will needs to be increased.
● The * part in the table is steel failure control.
● The material of all the anchors in the table is alloy steel, grade 8.8.
● Design load: including material partial factor, but not including overall partial factor.
● Recommended load: including not only material partial factor, but also including overall partial factor 1.4.
● If your NJMKT Undercut Anchor(Anchoring Systems) with special material and specification is not listed in this table, please contact our engineer for advice.
● All basic anchor data in this table is given according to 2013 ETAG001 and Appendix. The partial factor in the load application must be in accordance with national regulation.
Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors，anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.
