Hex Head Lag Screws 316 Stainless Steel Lag Bolts Commonly referred to as a lag screw, lag bolt, or coach screwsSignificantly larger than most other wood screwsFeature the sharp cutting threads for excellent retention in wood and other soft materialsHighly corrosion and rust resistant 316 stainless steelTypically used in heavy duty carpentry applications including lumber framing and anchoring equipment to wood such as machinery and large vices Lag bolts feature a hex head and are designed to be driven with a wrench or hex driver. Lag screws are also commonly called lag bolts because they are significantly larger than most other screws. Essentially, they are just very large wood screws. They feature the sharp cutting threads of a wood screw or sheet metal screw and have a shoulder below the head (in longer lengths), however everything is scaled up in size for use in larger applications. Product Specifications: Fastener Type: Lag ScrewMaterial: 316 Stainless SteelHead Style: HexWidth Across Flats: (Max 0.437 - Min 0.428)Width Across Corners: (Max 0.505 - Min 0.488)Wrench Size: 7/16"Head Height: 11/64"Thread Diameter: 1/4"Thread Pitch: 10 Per InchThread Direction: Right HandThread Type: CoarseOther: **Hex Lag Screws in 1/4" diameter are Partially Threaded with a Shoulder below the head in lengths 2" and over*** Stainless Steel Lag Bolts 316 Stainless Steel Hex Head Lag Screws in this selection are made of 316 stainless steel. 316 Stainless is valued for its high corrosion and rust resistance when exposed to salt water moisture and the elements for a long lasting applications. Hex Head, Lag Threads Lag Screws are essentially heavy duty wood screws. Often referred to as lag bolts because of their larger size, Lag Screws feature sharp cutting threads that provide excellent retention in wood and other soft materials. In longer lengths, lag screws feature a shoulder beneath the head for increased holding power, making them more resistant to pull-out for heavy duty applications. The hex head has replaced the screwdriver style of smaller wood screws due to the size of the fastener. Common Applications Lag bolts are commonly used in carpentry, used to lag together lumber framing, to lag machinery feet to wood floors, and other heavy carpentry applications. They can also be used with Lag Shield masonry anchors to anchor fixtures to concrete and other masonry materials.