Simpson #14 x 3" TF WOOD-TO-STEEL Screw, Black Phosphate PACK:50 Pk 56/16 is designed for use

56/16 is designed for use with both engineered wood products and solid sawn lumber

The metalworking-specific outer filter attracts oil mist

Installing wood joists to masonry surfaces

Flat Head with Underhead Nibs - the nibs bite into the wood surface during installation

while the larger-diameter upper shank delivers superior shear resistance for reliable

Simpson #14 x 3" TF WOOD-TO-STEEL Screw, Black Phosphate PACK:50 Pk 56/16 is designed for useThe Simpson Strong Drive TF Wood to Steel Screw (#14 x 3") is a load rated structural fastener engineered and extensively tested to meet the demands of wood to metal construction and heavy duty fastening applications. Designed to bore cleanly through wood and into steel up to 15 32 in. thick, this black phosphate coated screw delivers reliable pull through resistance and secure tapping engagement in steel making it a trusted choice for structural wood