All – screws
ELCO
#12-14 x 1-1/2" Dril-Flex Undercut Flat Head Structural Self-Drilling Screws 1250 pack
$ 334.51
ELCO
#12-14 x 1-1/2" Dril-Flex Undercut Flat Head Structural Self-Drilling Screws 2500 pack
$ 608.23