Hex Head Wood Screws - Lituo Fasteners Manufacturer
Application of DIN 571 hex head lag screw bolts: Metric DIN 571 hex head lag screw bolts are heavy-duty wood screws usually used to attach lumber to lumber or lumber to masonry. Commonly used in deck and dock construction. Pre-drilling is recommended to prevent splitting. They are generally much larger in size than standard wood screws.
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