Lead Screw can be used in solid masonry and concrete,etc. Made of lead alloy Item code Anchor size Dia. Quantity Box/Ctn Weight Kgs/1000 LW6806 6-8X3/4 1/4 100/1000 5.3 LWS6810 6-8X1 1/4 100/1000 6.4 LWS6814 6-8X1-1/2 1/4 100/1000 8.6 LWS1006 10-14X3/4 5/16 100/1000 6.1 LWS1010 10-14X1 5/16 100/1000 8.3 LWS1014 10-14X1-1/2 5/16 100/1000 13.4 LWS1610 16-18X1 3/8 25/250 9.6 LWS1614 16-18X1-1/2 3/8 25/250 20.1