Ads by Google
1.left hand thread bolts2.Common groutable 3.Stainless steel anchor bar4.with domed plate and nut5.R& T thread
1. Common groutable anchor bar consists of hollow anchor bolt, anchor plate and anchor nut.It can be used in the supporting of all kinds of rock and soil, and suitable for the supporting of medium or long anchoring bolt, or the roof supporting of underground works.
2. Steel anchor bar with expansion case consists of steel anchoring head with expansion case, hollow slip casting bolt, slip stop plug, anchor plate and nut. This kind of bolt is used for rock supporting work that requires initial prestress.
standard | outside diameter | average internal dia | ultimate load capatity | yield load | tensile strength | yield strength | theorical weight | thread type |
mm | mm | kn | kn | N/mm2 | N/mm2 | kg/m | ||
R25N | 25 | 13 | 200 | 150 | 720 | 560 | 2.4 | ISO10208 |
R32N | 32 | 18.5 | 280 | 230 | 720 | 560 | 3.2 | .. |
R32S | 32 | 15 | 360 | 280 | 740 | 560 | 4.0 | .. |
R32L | 32 | 20 | 220 | 160 | 740 | 560 | 2.9 | .. |
R38N | 38 | 19 | 500 | 400 | 740 | 560 | 5.8 | .. |
R51L | 51 | 36 | 550 | 450 | 740 | 560 | 6.8 | .. |
R51N | 51 | 33 | 800 | 630 | 740 | 560 | 7.8 | .. |
T76N | 76 | 51 | 1600 | 1200 | 740 | 560 | 15.6 | ISO1720 |
T76S | 76 | 45 | 1900 | 1600 | 740 | 560 | 20.0 | .. |
T30/11 | 30 | 11 | 320 | 260 | 740 | 560 | 3.2 | .. |
T40/16 | 40 | 16 | 660 | 525 | 740 | 560 | 7.2 | .. |