Often called a lag screw. Hex lag bolts are for fastening in wood.
Available bolt material:
| Zinc plated steel
||Steel is zinc plated for moderate protection against rust.
| Stainless steel 18-8
||Stainless steel 18-8 is an alloy of steel with high corrosion resistance. Stainless has become the material of choice for exterior and most marine applications.
| Silicon Bronze
||Bronze is an alloy of copper with greater strength and corrosion resistance than brass. Most commonly used in wood boat building and restoration.
| Hot dipped galvanized
||Hot dipped galvanized fasteners are much more corrosion resistant than zinc plated fasteners. Due to the thickness of the galvanized coating, galvanized bolts will only work with galvanized nuts. For exterior and coastal area use. (ASTM A153)