Hex

The TK800DD Kit features six different lengths of #8 Self Drilling Pan Head Square Drive screws. Their unique tip design allows them to drill, tap and fasten metal to metal objects in one operation without the need to pre-drill. They are manufactured from durable, cold-heading steel material and heat treated for optimum drill performance and thread forming. Material: Carbon Steel

Lag Screws are heavy duty fasteners used to connect heavy lumber or other materials that bear a strenuous load. They are manufactured from low carbon steel and can be used with lag shields in a variety of masonry applications, such as concrete, brick, and mortar. Lag Screws can also be used where standard wood screws are too short or small. In some applications, a pilot hole may be pre-drilled to prevent splitting or snapping. ASME B18.2.1 cover the requirements for steel lag screws.

Sheet Metal Screws are a versatile fastener with specially hardened spaced threads and sharp points, and are capable of tapping their own internal threads. Typical applications for Sheet Metal Screws include fastening light metal sheets, wood, and plastic. They are manufactured with case hardened steel and finished with a zinc plating. ASME B18.3 covers the general requirements for the dimensions and performance of Steel Sheet Metal Screws. Material: Carbon Steel

Hex Lag Screws feature a hex head, spaced threads, and a gimlet point, mostly for use in wood applications for long lasting reliability. Fasteners can affix items to concrete and masonry when combined with lag expansion shields for added durability. Hex head screws are designed to be driven by a wrench or pneumatic tools.

Sheet Metal Screws with square drive are a versatile fastener with specially hardened spaced threads and sharp points, and are capable of tapping their own internal threads. Typical applications for Sheet Metal Screws include fastening light metal sheets, wood, and plastic. They are manufactured with case hardened carbon steel and finished with a zinc plating. ASME B18.3 covers the general requirements for the dimensions and performance of Steel Sheet Metal Screws.