Cuts threads into pre-drilled holes in concrete, brick or block. with alternating raised/lowered threads & diamond cut notches which provide exceptional holding power and stability. Hex head with slot for socket or screwdriver application.
 

Cuts threads into pre-drilled holes in concrete, brick or block. with alternating raised/lowered threads & diamond cut notches which provide exceptional holding power and stability. Hex head with slot for socket or screwdriver application.
 

Cuts threads into pre-drilled holes in concrete, brick or block. with alternating raised/lowered threads & diamond cut notches which provide exceptional holding power and stability. Hex head with slot for socket or screwdriver application.