double-screw bolt
螺柱，双头螺纹螺栓
Nuts have internal (or female) threads to match those of the Bolt.
螺母上有内(或阴)螺纹,与螺栓上的螺纹相啮合。
" Bolts, screws and studs--Nominal lengths, and thread lengths for general purpose bolts"
GB/T3106-1982螺栓、螺钉和螺柱的公称长度和普通螺栓的螺纹长度
all screw threads are according to aNSI B-1.1 coarse thread.
所有螺栓的螺纹都符合aNSI B-1.1粗牙螺纹标准。
"Bolts,screws & nuts"
"螺栓,螺丝及螺帽"
Note- threads connecting to microscope are male.
注意：连接显微镜的螺栓是外螺纹。
Hexagon head bolts-Full thread-Product grade C
GB/T5781-1986六角头螺栓--全螺纹--C级
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
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
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。
a fastener made by screwing a nut onto a threaded bolt.
在螺栓上有车削螺纹的扣件。
A small block of metal or wood with a central, threaded hole that is designed to fit around and secure a bolt or screw.
螺母，螺帽中部有螺纹用于与螺栓或螺钉相配合的小块金属或木头
When I tried to work the nut onto the spindle, I broke the threads.
我想把螺帽拧上螺栓，可是把螺纹拧坏了。
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。
Sturdy full-length threaded corrosion-resistant bolts provide the required high packing stress.
坚固的全螺纹防腐螺栓提供所需要的保压应力。
Side view of hexagonal head bolt with adjustable thread length.
螺纹长度可调整的六角头螺栓的侧面图。
Top view of hexagonal socket bolt. Selection box represents thread diameter.
六角插口螺栓的俯视图。选择框代表螺纹直径。
Side view of hexagonal socket bolt with adjustable thread length.
螺纹长度可调整的六角插口螺栓的侧面图。