Power Fasteners carries a wide variety of mechanical concrete anchors and fasteners. Below is a brief description of the concrete anchors and fasteners that the company offers.
The Power-Bolt® is Powers Fasteners brand name for their heavy-duty sleeve-type anchor. The original brand name for this anchor, when is, was manufactured and sold by Rawl Fasteners was the Rawl-Bolt. The Power-Bolt® is self-locking, designed to be resistant to vibrations and can be removed. The Power-Bolt® can be used in concrete, brick, stone or block and is available in a flat head or a hex head. The Power-Bolt® has a compression ring that is flexible and allows the fixture to be drawn totally against the base material.
Powers Fasteners brand name for their wedge expansion anchor is the Power-Stud®. The Power-Stud® has not been tested and should not be used in cracked concrete. The Power-Stud+ SD1 and Power-Stud+ SD2 should be used for this type of application. Power-Stud® wedge anchor is a wedge torque controlled type expansion anchor that comes in three versions: fully threaded, rod hanger or tie wire.
Powers Fasteners wedge expansion anchor called the Power-Stud+ SD1, is fully threaded and designed for consistent performance in uncracked and cracked concrete. The body, clip, nut, and washer of the Power-Stud+ SD1 wedge expansion anchor are made from zinc plated carbon steel. The Power-Stud+ SD1 is a torque-controlled wedge expansion anchor for use only in the concrete base material.
The Power-Stud+ SD2 wedge expansion anchor is the same anchor as the Power-Stud+ SD with the exception that the Power-Stud+ SD2 has a 316 stainless steel clip. The Power-Stud+ SD2 wedge expansion anchor should only be used on solid concrete and is suitable for use in either cracked or uncracked concrete. Powers Fasteners Power-Stud+ SD2 are packaged with the correct number and size of nuts and washers.
Lok-Bolt AS™ is Powers Fasteners’ brand name for their sleeve anchor and comes pre-assembled and can be used in concrete, brick or block base material. The Lok-Bolt AS™ is a very versatile anchor available in a number of different head styles such as round or flat head and can be purchased in zinc plated carbon steel or a 304 stainless steel.
Tapper® is Powers, Inc brand name for their concrete screw. They are available in a variety of plating and rust-resistant steels, such as 410 stainless steel and 304 stainless steel. The Tapper® taps threads into a pre-drilled hole in the base material. The Tapper® comes in two diameters of 3/16” and 1/4” and in a variety of lengths depending on the application. Two head styles available for both diameters are a hex slotted washer head and a flat Phillips countersunk.
The Wedge-Bolt® + is a one-piece, self-tapping concrete anchor that has a finished hex washer head and is designed for heavy-duty screw applications. The Wedge-Bolt® + can be used in cracked or uncracked concrete and is suitable to be used in normal weight concrete, concrete over steel deck, CMU (block) or solid clay brick. The steel threads along the entire length of the body engage the base material for excellent and consistent holding values.
The Steel Dropin™ is an internally threaded expansion anchor that is made from zinc plated carbon steel, 304 stainless steel or 316 stainless steel. The Steel Dropin™ requires a setting tool for expansion and should only be used with solid concrete, hard stone or other solid base materials. Steel Dropin™ is available in the smooth wall Drop-in or the Flange (lipped) Drop-in and is manufactured in five diameters. The Steel Dropin™ internal threads can be the standard national coarse threads or coil threads.
The Mini Dropin™ anchor works under the same principals as the Steel Dropin™ utilizing a setting tool for expansion and accepting national coarse threaded bolts and threaded rod. The Mini Dropin™ design allows it to be used in applications of shallow embedment in the base material. Certain applications, such as prestressed concrete, require a maximum embedment of 3/4” is is met by the Mini Dropin™. Mini Dropin™ comes in three diameters of 1/4”, 3/8” and 1/2” and the diameter of the anchor is designated as the inside diameter or the diameter of the bolt or threaded rod that can be inserted.
Hollow-Set Dropin™ is a female type anchor that is available in 5 diameters from 1/4” to 3/4” and is designed to be used in hollow block walls. Hollow block usually has a thickness of about 1-1/2” and, when drilled with a hammer drill, can spill out leaving as little as 1” of the base material. The Hollow-Set Dropin™ design allows it to be properly expanded in the base material of 1” or less. The Hollow-Set Dropin™ can also be used in other base materials such as solid concrete or precast hollow core.
The Double has a rust-resistant body, accepts national coarse threaded fasteners and is an excellent anchor for use in concrete, brick or block. The Double can be used in the base material of questionable strength, although the holding values should be tested for any particular job. The Double is available in six different diameters from 1/4” to 3/4”.
Powers Fasteners sells their single expansion anchor under the name of the Single Shield Expansion anchor. It is available in five diameters from 1/4” to 5/8”. The single shield expansion anchor comes pre-assembled and is expanded using a machine-threaded bolt. The single shield expansion shield expands when the bolt is turned clockwise and the expander cone is drawn up into the anchor body to expand the expansion shield against the base material. The Single can be used in concrete, brick, block or stone but is not recommended for use in overhead applications.
The Calk-In anchor is a two-piece anchor that comes pre-assembled and is used in concrete, brick or block base material. The Calk-In anchor is not recommended for use in overhead applications and comes in six diameters ranging from a #8 to 1/2”. The diameter of the Calk-In anchor refers to the bolt or threaded rod diameter that is inserted into the Calk-In anchor. All Calk-In anchors require the use of a setting tool for each diameter to ensure that the Calk-In anchor is set properly.
The Lag Shield™ is a lag screw anchor that utilizes a lag screw to be inserted into it for the anchor to expand. The Lag Shield™ works well in most base materials such as concrete, block, brick and mortar joints. The Lag Shield™ comes in six diameters with each diameter available in two lengths of short or long. The short Lag Shield™ is designed for use in harder base materials and the longer style Lag Shield™ can be used in softer base materials.
The Snake+ anchor is designed to be used in cracked or uncracked concrete has internal threads and is a self-tapping concrete anchor. The Snake+ is inserted into a predrilled hole in normal weight concrete, lightweight concrete, and concrete over steel deck. The Snake+ comes in only one size 3/8” and accepts any national coarse threaded rod or bolt.
The Spike® can be used in concrete, brick, block or stone base material and it is designed as a one-piece tamper and vibration resistant anchor. The Spike® is called pre-expanded because no secondary tightening is required after the Spike® anchor is set into the base material. The Spike® has a unique shape. At the working end, the shank bends outwards as in an “S” and appears to be a nail that is pregnant. The Spike® is commonly referred to as the Rawl Spike and can be purchased in either a zinc plated carbon steel or a stainless steel. Spike® comes in different configurations for specific applications: mushroom headed carbon steel Spike®, flat head Spike®, mushroom head stainless steel Spike®, pipe Spike®, tie-wire Spike® and the forming Spike®.
The Drive® is a pre-expanded nail type anchor commonly called a split drive anchor. Drive® is Powers Fasteners’ brand name for their split drive anchor that is available in a round head, flat head or a tie-wire head. The Drive® is available in a carbon steel that is zinc plated for applications that are permanent since the Drive® cannot be removed once fully installed. Both the flat head and round-headed Drive® anchors are tamper proof. The flat-headed Drive® is excellent for use in wood flooring applications fastened to solid concrete.
The Zamac Hammer-Screw™ was developed as an improvement over the standard Zamac hammer drive anchor. It has a Phillips drive head pin, allowing for the pin to be unscrewed after the anchor is set. The body of the Zamac Hammer-Screw™ nail anchor is made from a rust-resistant material called Zamac and the pin is available in either carbon steel or stainless steel. The Zamac Hammer-Screw™ nail anchor is designed for use in base materials such as concrete, brick, block or stone.
Powers Fasteners’ standard nail anchor is called the Zamac Nailin® anchor. The body of the anchor is made from a Zamac material that is rust resistant. The expansion nail is available in zinc plated carbon steel and a stainless steel. The Zamac Nailin® comes in either a mushroom head or a flat countersunk head. It is designed as a light duty, tamper-resistant anchor for use in concrete, brick or block base material. The Zamac Nailin® should never be used in overhead applications.
Powers Fasteners’ brand name for their nylon nail-it anchor is the Nylon Nailin® nail anchor. Three head styles are available: the mushroom head Nylon Nailin®, round head Nylon Nailin® and the flat head Nylon Nailin®. The anchor body of the Nylon Nailin® is made from a plastic that is engineered. The drive nail is available in a zinc plated carbon steel or stainless steel. The Nylon Nailin® nail anchor is used in concrete, brick, block or stone and should not be used in overhead applications.
As with any anchoring project, it is important to keep safety in mind and follow instructions carefully. Always remember to wear safety goggles, handle all tools with extra care and follow all technical specifications. This article is meant to serve only as a basic explanation of concrete fasteners. Always refer to manufacturer's instructions or consult a contracting expert during any anchoring project.