1.
counterbore for hexagon socket head bolt
内六角头螺栓埋头孔
2.
Hexagon socket cap head screws
GB/T70-1985内六角圆柱头螺钉
3.
Hexagon lobular socket countersunk head screws
GB/T2673-1986内六角花形沉头螺钉
4.
Hexagon lobular socket head cap screws--Property class 4.8
GB/T6190-1986内六角花形圆柱头螺钉4.8级
5.
Hexagon lobular socket head cap screws--Property class 8.8
GB/T6191-1986内六角花形圆柱头螺钉8.8级
6.
Hexagon lobular socket raised countersunk head screws
GB/T2674-1986内六角花形半沉头螺钉
7.
Hexagon lobular socket pan head screws
GB/T2672-1986内六角花形盘头螺钉
8.
Hexagon socket head shoulder screws
GB/T5281-1985内六角圆柱头轴肩螺钉
9.
Hexagon lobular socket thread forming screws
GB/T6564-1986内六角花形圆柱头自攻锁紧螺钉
10.
Hexagon head tapping screws
GB/T5285-1985六角头自攻螺钉
11.
Hexagon head wood screws
GB/T102-1986六角头木螺钉
12.
Hexagon head bolts-Product grade C
GB/T5780-1986六角头螺栓--C级
13.
hexagonal safety set screw
六角头安全固定螺钉
14.
hexagon spline screw driver
内六角花形螺钉旋具
15.
a wrench for Allen screws.
专供内六角螺丝的扳手。
16.
Fasteners--Counterbores for hexagon bolts and nuts
GB/T152.4-1988紧固件六角头螺栓和六角螺母用沉孔
17.
Hexagon bolts with wire holes on head--Reduced shank--Product grade B
GB/T32.2-1988六角头头部带孔螺栓细杆B级
18.
" 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