1.
					
							Cup head square neck bolts
						
					
					
						
						
					
					
						GB/T12-1988半圆头方颈螺栓
					2.
					
							strong oval head square neck bolt
						
					
					
						
						
					
					
						加强半圆头方颈螺栓
					3.
					
							Cup head square neck bolts with large head--Product grade C
						
					
					
						
						
					
					
						GB/T14-1998大半圆头方颈螺栓C级
					4.
					
							Strengthened cap head square neck bolts
						
					
					
						
						
					
					
						GB/T794-1993加强半圆头方颈螺栓
					5.
					
							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
					6.
					
							" Bolts,round head with oval neck"
						
					
					
						
						
					
					
						GB/T8262-1987圆头椭圆颈螺栓
					7.
					
							Cup head nib bolts
						
					
					
						
						
					
					
						GB/T13-1988半圆头带榫螺栓
					8.
					
							Flat countersunk square neck bolts
						
					
					
						
						
					
					
						GB/T10-1988沉头方颈螺栓
					9.
					
							Radii under the head of bolts and screws
						
					
					
						
						
					
					
						GB/T3105-1982螺栓和螺钉的头下圆角半径
					10.
					
							Cup head nib bolts with large head
						
					
					
						
						
					
					
						GB/T15-1988大半圆头带榫螺栓
					11.
					
							brass bolts and nuts with round head
						
					
					
						
						
					
					
						黄铜圆头螺栓和螺母
					12.
					
							" 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
					13.
					
							A bolt having a looped head designed to receive a hook or rope.
						
					
					
						
						
					
					
						有眼螺栓带有圆圈头的螺栓,用来接钩子或绳子
					14.
					
							" 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
					15.
					
							Square head bolts--Product grade C
						
					
					
						
						
					
					
						GB/T8-1988方头螺栓C级
					16.
					
							Square head bolts with small head--Product grade B
						
					
					
						
						
					
					
						GB/T35-1988小方头螺栓B级
					17.
					
							square collar-head set-bolt
						
					
					
						
						
					
					
						方头凸缘端紧定螺栓
					18.
					
							" Bolts, small hexagon head with fit neck"
						
					
					
						
						
					
					
						GB/T22-1976小六角头导颈螺栓