... by yellow zinc yellow zinc plated heavy duty shell anchor1)Material: carbon steel2)Good quality3)Plated ... *90,M16*135 Drill Dia.:12,14,16,20,25 ISO9001:2000Quality Management SystemMaterial:carbon ... ,14,16,20,25Heavy duty shell anchor;Heavy duty shell anchor with hex bolt;Heavy duty shell anchor ... with hook bolt;Heavy duty shell ...