Specification Brand : K.C. Building Supply BulletPoint1 : Hot dipped galvanized lag bolts feature a Hex Head and are designed to be driven with a wrench or hex driver. BulletPoint2 : Hot Dipped Galvanized lag bolts are typically used in heavy duty carpentry applications including lumber framing and anchoring equipment to wood such as machinery and large vices. BulletPoint3 : Significantly larger than most other screws. Have a shoulder below the head (in longer lengths). BulletPoint4 : Feature the sharp cutting threads of a wood screw. Essentially just a very large wood screw BulletPoint5 : HDG lag bolts are rust and corrosion resistant making them perfect for exterior use DriveSystem : External Hex ExteriorFinish : Hot-Dipped Galvanized GradeRating : Grade A ItemName : 3/8"-7 x 3-1/2" Inch Hot Dipped Galvanized Lag Bolt, 100 Pack - K.C. Building Supply ItemTypeKeyword : lag-screws Manufacturer : K.C. Building Supply Material : Galvanized Steel MeasurementSystem : Imperial MetalType : Alloy Steel NumberOfItems : 100 PartNumber : 38312LB-100 ProductDescription : 3/8" X 3-1/2" Hex Lag Screws Hot Dipped Galvanized - Qty - 100 ProductSiteLaunchDate : 2019-05-30T07:00:00.000Z Size : 3.5 inches UnspscCode : 31161500