DELIVERY CONDITIONS;HEXAGON HEAD SCREWS;SCREWS (BOLTS);SPECIFICATION (APPROVAL);BOLTS;THREADS;ACCEPTANCE SPECIFICATION;DESIGNATIONS;DIMENSIONS;FASTENERS

• 主题词：螺纹;验收规范;螺钉;螺栓;尺寸;规范(审批);名称与符号;交货条件;紧固件;六角头螺钉