Flat Head Wood Screws Dimensions

Wood screw dimensions and their fractional equivalents making fastener sizing a lot easier.

Flat head wood screws dimensions.

A flat head screw or bolt is a type of fastener characterized by a drive head that is flat or horizontal and includes a slot or phillips drive feature. For a countersunk screw with a rounded head also called an oval countersunk you start the measurement where the oval top and the countersunk half meet in the middle. Head diameter a head height h width of slot j. The rounded top extends above the wood surface.

Drive straight 6 x 2 1 4 in. Head diameters listed are standard for flat head and oval head screws. Roundhead screws have a flat bottom so they don t have to be countersunk. The degree of a flat head refers to its had angle or the angle from the top of the head to the surface where the threaded part meets the head.

Some bugle head screws have sharp nibs below their heads to cut away the wood below the head as you drive the screw. For example a countersunk screw with a flat head will rest flush with whatever it is embedded into so start the measurement at the top of the screw head. An 82 degree flat head is the standard angle but there are also 90 degrees 100 degrees and more. Fine phosphate plated steel flat head square sharp point screws 1 lb.

Flat head screws for wood more corrosion resistant than 18 8 stainless steel screws these have excellent resistance to chemicals and salt water. This type will pull flush even in hardwood. Choose from our selection of flat head wood screws including over 550 products in a wide range of styles and sizes. 10 bronze wood screws flat head frearson 10 bronze wood screws flat head slotted 10 s s wood screws flat head phillips.

100 degree head all units in inches. Flat head screws have varying degrees. When selecting the wood screw size and length that best suits your requirements keep in mind that the threaded portion of a wood screw takes up approximately 2 3 of the total length of the screw leaving 1 3 for the shank and head. In stock and ready to ship.