1.
gyroscopic angular deviation detector
陀螺角偏差灵敏元件
2.
hex machine screw nut
机械螺丝用六角螺帽
3.
helical gear with helix angle
带螺旋角的螺旋齿轮
4.
Secondly there is error between thethread roll angles of thread rolling die and drill rod.
滚丝轮螺纹和钻杆螺纹的螺旋角有误差。
5.
Hexagon head bolts-Full thread-Product grade C
GB/T5781-1986六角头螺栓--全螺纹--C级
6.
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
7.
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
8.
" 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
9.
" Bolts, small hexagon head with hole through the shank"
GB/T23-1976小六角头螺杆带孔螺栓
10.
Hexagon bolts with split pin hole on shank--Product grade A and B
GB/T31.1-1988六角头螺杆带孔螺栓A和B级
11.
Hexagon bolts with split pin hole on shank--Reduced shank--Product grade B
GB/T31.2-1988六角头螺杆带孔螺栓细杆B级
12.
Radii under the head of bolts and screws
GB/T3105-1982螺栓和螺钉的头下圆角半径
13.
Hexagon head tapping screws
GB/T5285-1985六角头自攻螺钉
14.
corten steel heavy hex nuts
耐候钢六角重型螺帽
15.
stainless steel heavy hex nuts
不锈钢六角重型螺帽
16.
bright mild steel hexagonal nut
光亮软钢六角螺丝帽
17.
Hexagon head wood screws
GB/T102-1986六角头木螺钉
18.
equal spiral angle taper cylindrical milling cutter
等螺旋角锥度柱铣刀