D16mm Bolt With Forged Integral Head
16-500
Quantity:
Yidao thread bolt is hot rolled continuous thread bar, full length is the same high strength capacity. The thread bar grade 500 for mining system, or higher steel grade PSB830/1030, PSB930/1080,PSB1080/1230
New type thread bolt grade 500 16mm with Square forged head, Forged head must be reused with 340Nm bolting.
Dimensions & mechanical properties
| Dia[mm] | dh+2h[mm] | dv[mm] | b[mm] | l[mm] |
| 16 | 18 | 16 | 3.8 | 7 |
| Yield strength | min500MPA(100.5KN) | |
| Tensile strength | min630MPA(127KN) | |
| Elongation,5d[A%] | min10 | |
| Weight[KG/M] | 1.58 | |
| Cross Section Area,A[mm2] | 201.1 | |
Accessories for thread bar: anchor plate, expansion shell etc.
Expansion Shell Design
Length: 100-130mm
Length of the ribbed leaf: 75mm MIN
Expansion shell diameter 38mm to suit for borehole with 40-44mm diameter
Expansion shell must afford screwing for the whole length of bolt
Mechanical strength of the expansion shell: 90kN MIN
Torque of roof support tightening: 250-350N.m
Bolt length: 450-3000mm as specified
Others: Other dimensions and designs can be customized to suit particular applications.
More details about the thread bar system, pls contact us.
Recommend Products
