Q1 Beads Nut & Bolt Set 12 Pack 6 Inches Anchor Fastener Zinc Plated Pin Type Nut Bolt for Wall Pin Drive Expansion Nut Bolt Multipurpose(4 Inches, LxW 150 x 10 mm)  (6AFAST)

[Size] Pack of 12 , L x W -150 x 10 mm. Diameter-10 mm. [BUILT] High Grade Mild Steel , electroplated with zinc at a minimum of 5 microns.Rounded end for easy insertion I Anchor diameter matches drill bit diameter [ Superior ]Flat head impact section to prevent thread damage during installation [USES] Great for use in untracked concrete, lightweight concrete, lightweight concrete and masonry (grout-filled CMU) [Package Content] Mild Steel Pin Type Anchor Fasteners includes 12 Bolts,12 Pins, 12 Nuts.