small bolt

Square head bolts with small head--Product grade B

GB/T35-1988小方头螺栓B级

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

Square head bolts--Product grade C

GB/T8-1988方头螺栓C级

Cup head square neck bolts

GB/T12-1988半圆头方颈螺栓

Flat countersunk square neck bolts

GB/T10-1988沉头方颈螺栓

strong oval head square neck bolt

加强半圆头方颈螺栓

square collar-head set-bolt

方头凸缘端紧定螺栓

" 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

" Bolts, small hexagon head with hole through the shank"

GB/T23-1976小六角头螺杆带孔螺栓

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。

" Bolts, small hexagon head with fit neck and holes through the head"

GB/T26-1976小六角头头部带孔导颈螺栓

" Bolts, small hexagon head with holes through the head"

GB/T25-1976小六角头头部带孔螺栓

double-screw bolt

螺柱，双头螺纹螺栓

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

" Bolts, small hexagon head with fit neck"

GB/T22-1976小六角头导颈螺栓

Cup head square neck bolts with large head--Product grade C

GB/T14-1998大半圆头方颈螺栓C级

Strengthened cap head square neck bolts

GB/T794-1993加强半圆头方颈螺栓

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。