1.
double-screw bolt
螺柱，双头螺纹螺栓
2.
brass bolts and nuts with round head
黄铜圆头螺栓和螺母
3.
sunk screw
【机】埋[沉]头螺丝
4.
bm=1.25d Double end studs bm=1.25d
GB/T898-1988双头螺柱
5.
bm=1.5d Double end studs bm=1.5d
GB/T899-1988双头螺柱
6.
bm=1d Double end studs--bm=1d
GB/T897-1988双头螺柱
7.
bm=2d Double end studs bm=2d
GB/T900-1988双头螺柱
8.
counterbore for hexagon socket head bolt
内六角头螺栓埋头孔
9.
High strength joint bolts and nuts for rails
GB/T5098-1985钢轨用高强度接头螺栓、螺母
10.
Hexagon head bolts-Full thread-Product grade C
GB/T5781-1986六角头螺栓--全螺纹--C级
11.
Hexagon head bolts-Fine pitch thread-Full thread-Product grades A and B
GB/T5786-1986六角头螺栓--细牙--全螺纹--A和B级
12.
Hexagon head bolts-Full thread-Product grades A and B
GB/T5783-1986六角头螺栓--全螺纹A和B级
13.
" Bolts, small hexagon head with fit neck and hole through the shank"
GB/T24-1976小六角头螺杆带孔导颈螺栓
14.
" Bolts, small hexagon head with hole through the shank"
GB/T23-1976小六角头螺杆带孔螺栓
15.
Screwed 1;Screwed 2;Screwed 3;Screwed 4
螺纹接头 1;螺纹接头 2;螺纹接头 3;螺纹接头 4
16.
Screwed Joint 1;Screwed Joint 2;Screwed Joint 3
螺纹接头 1;螺纹接头 2;螺纹接头 3
17.
threaded type track bolt nut chuck
螺纹式轨道螺母夹头
18.
male and female cross
阳螺纹-阴螺纹十字接头