Tapcon Masonry Screw, 1/4" Dia., Hex, 3 3/4 in L, 410 Stainless Steel Silver Climashield, 100 PK, RED HEAD, Mfr# 3372907

Concrete Anchor Screw, Anchor Diameter 1/4 in, Overall Length 3 3/4 in, Head Type Hex, Head Width 0.31 in, Head Diameter Not Applicable, Drive Type External Hex, Material Stainless Steel, Finish Silver Climashield, Material Grade/Class 410, Removable Removable, Compatible Material Block, Brick, Concrete, Drill Bit Size 3/16 in, Screw Anchor Type Concrete Screw Anchor, System of Measurement Inch, Maximum Material Thickness 2 3/4 in, Maximum Ultimate Shear Strength 1,440 lb