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USP LUMBER CONNECTORS WSBH4-EXTR12 Structural Wood Screw, Bugle Head, 4", Exterior Grade
Item #: WSBH4-EXTR12 by USP LUMBER CONNECTORS
Brand: USP LUMBER CONNECTORS
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WARNING: This Product May Contain Chemicals Known to the State of California to Cause Cancer or Reproductive Harm. To Learn More Visit P65Warnings.ca.gov
Features
Size (W x H x D)
2.60×1.55×6.50
Weight (lb)
0.59
Product Overview
This structural wood screw, identified by USP Structural Connectors as model WSBH4-EXTR12, features a bugle head design for a low-profile, flush, or countersunk appearance below the wood surface. Designed for high-strength wood-to-wood and framing applications, it serves as an alternative to traditional lag screws and bolts. The 4-inch length screw incorporates an exterior grade (EXT) finish for enhanced corrosion resistance, making it suitable for outdoor use and connections with treated lumber. It typically features a self-drilling point, such as a Type 17, to ensure fast starts and strong holding power, often paired with a drive recess (e.g., Torx) for secure driver engagement and reduced cam-out. USP Structural Connectors is a brand of MiTek USA, Inc., and includes a head stamp for easy length identification. The coarse threads are engineered to draw materials tightly to the substrate.