1/4″-20 x 5″ Zinc Plated Steel Coarse Thread Phillips Flat Head Machine Screws

Diameter: 1/4″ Length: 5″ Material: Steel Finish: Zinc Head Style: Flat (Phillips) Thread Size: 20 (Coarse) Thread Length: Full Type: Machine Screw A machine screw, also called a stove bolt, is generally a smaller fastener threaded the entire length of its shank. Machine screws are used in fastening nearly all types of hard materials. Especially useful in metal-to-metal or where heavy duty fastening is required. Commonly used with flat or lockwashers.

5/16″ x 4″ Zinc Plated Grade 2 / A307 Steel Hex Head Lag Screws

Diameter: 5/16″ Length: 4″ Material: Steel Finish: Zinc Head Style: Hex (1/2″ Wrench) Point Type: Gimlet Thread Length: Partial Hardness: Grade 2 / A307 Type: Hex Lag Screw A lag screw is similar to a wood screw, but generally is much larger with a hexagonal head. Lag bolts are designed for securely fastening heavy timbers to one another, or to fasten wood to masonry or concrete.