1.
Square head bolts--Product grade C
GB/T8-1988方头螺栓C级
2.
Square head bolts with small head--Product grade B
GB/T35-1988小方头螺栓B级
3.
Side view of square head bolt with adjustable thread length.
螺纹长度可调整的方头螺栓侧面图。
4.
Top view of square head bolt. Selection box represents thread diameter.
方头螺栓的俯视图。选择框代表螺纹直径。
5.
Cup head square neck bolts
GB/T12-1988半圆头方颈螺栓
6.
Flat countersunk square neck bolts
GB/T10-1988沉头方颈螺栓
7.
strong oval head square neck bolt
加强半圆头方颈螺栓
8.
square collar-head set-bolt
方头凸缘端紧定螺栓
9.
double-screw bolt
螺柱，双头螺纹螺栓
10.
Cup head square neck bolts with large head--Product grade C
GB/T14-1998大半圆头方颈螺栓C级
11.
Cup head square neck bolts with small head and short neck--Product grade B
GB/T801-1998小半圆头低方颈螺栓B级
12.
Strengthened cap head square neck bolts
GB/T794-1993加强半圆头方颈螺栓
13.
brass bolts and nuts with round head
黄铜圆头螺栓和螺母
14.
counterbore for hexagon socket head bolt
内六角头螺栓埋头孔
15.
Mechanical property requirements for studs shall be the same as those for bolts.
柱头螺栓的机械性能要求与螺栓相同。
16.
" Bolts,round head with oval neck"
GB/T8262-1987圆头椭圆颈螺栓
17.
To drive(a screw or bolt)into a countersink.
将钻或螺栓置入埋头孔
18.
bolt or cotter-pin drill
螺栓或开尾销孔钻头