A lag screw, or lag bolt, is a full-bodied bolt with a hex head, spaced threads, and a gimlet point. They are generally used to connect heavy lumber and other materials that bear an intense load. Zinc plated lag screws should be used for wood in non-corrosive environments, while hot dipped galvanized lag bolts can be used in corrosive environments, such as an outdoor deck. For even more protection, consider using stainless lag bolts.
Thread Length: The minimum thread length for standard lag screws shall be equal to ½ the nominal screw plus .5” or 5”, whichever is shorter. Screws too short for this formula shall be threaded as close to the head as practical.
Lag Screw & Bolt Applications
Fully threaded hex washer lag screws are designed specifically for attaching track brackets and flag brackets of garage door assemblies to wooden door jams. They are a fully threaded fastener with a spaced thread pitch, tapered point, and an integrally formed hex washer head with an indented top surface.
AFT is a distributor of lag bolts for wood, offering diameters ranging from ¼” through 7/8” and lengths up to 24”. For additional information or assistance, please contact us today – our knowledgeable sales team is here to help.
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