12/22/2023 0 Comments 3 stainless steel screws![]() Specialized screw with a bugle head that is designed to attach drywall to wood or metal studs, but it is a versatile construction fastener with many uses. The screw is fastened by hitting the head with a hammer and is not intended for removal. Smooth round or mushroom headed with a multi-start thread on the shank, beneath which is reduced diameter shank that acts as a pilot. ![]() A hanger bolt is used when it is necessary to fasten a metal part to a wood surface.Ĭhiefly used for attaching manufacturers data plates to equipment. Similar to a wood screw but with two pointed ends and no head, used for making hidden joints between two pieces of wood.Ī hanger bolt has wood screw threads on one end and machine threads on the other. They have bugle heads that allows the screw to depress the wood surface without breaking it. Most deck screws have a type-17 (auger type) thread-cutting tip for installation into decking materials. Similar to drywall screw, except that it has improved corrosion resistance and is generally supplied in a larger gauge. So for example, if a 1/2" board is being screwed onto the concrete, a 1-3/4" to 2" concrete screw should be used. Ideally 1-1/4" to 1-1/2" of screw thread in the concrete. The screw itself should be drilled a minimum of 1" into the concrete to hold effectively and a maximum of 1-3/4" or the threads will wear and will lose holding power. ![]() The drill hole should be 1/2" longer than the depth penetration of the screw. Typically an installer uses a hammer drill to make a pilot hole for each concrete screw and a powered impact driver to drive the screw. They may either have a Phillips flat head or a slotted hex washer head. Concrete screws are commonly blue in color, with or without corrosion coating. The threads on particle board screws are asymmetrical.Ī stainless or carbon steel screw for fastening wood, metal, or other materials to concrete or masonry. Similar to a drywall screw, except that it has a thinner shank and provides better resistance to pull-out in particle board, while offset against a lower shear strength. ![]() Hardened stainless steel provides superior strength and unmatched performance by maximizing torque and increasing bending yield.This is a list of types of threaded fasteners, including both screws and bolts. The Zip-Tip™ feature of the screw allows a faster start and eliminates the need for pre-drilling. PHEINOX™ 316 stainless steels screws are recommended for applications exposed to salt water or located within 1 mile of the salt water shoreline. PHEINOX™ 305 stainless steels screws are recommended for applications located more than 1 mile from the coast. PHEINOX™ 305 stainless is also recommended for use with cedar, red-wood and various other wood substrates that have higher acid content as well as for compositeĭeck boards. GRK recommends PHEINOX™ 305 stainless steels screws for applications that require superior corrosion resistance in wet environments such as decks, boardwalks, pools, and hot tubs. GRK’s patented R4, RSS, FIN/TRIM and RT composite screws are available in PHEINOX™ stainless steel. PHEINOX™ 316 Stainless Steel screws are designed for coastal applications. ![]() PHEINOX™ 305 Stainless Steel screws are corrosion and stain resistant fasteners designed to withstand wet environments. ![]()
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