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Rebar spacer. A concrete spacer with a plastic clip in use on the side of the formwork. A rebar spacer is a short, rod-like device used to secure reinforcing steel bars, or rebar, within cast assemblies for reinforced concrete structures. The rebar spacers are fixed before the concrete is poured and remain within the structure.
In general, a spacer is a solid material used to separate two parts in an assembly. Spacers can vary in size from microns to centimeters. They can be made of metal, plastic, glass, and other materials. Shapes include flat sheet, cylindrical and spherical. Two sizes of metal standoffs and one plastic standoff.
A plastic 45 rpm adapter that inserts into the large spindle hole of a 45 rpm record. A 45 rpm adapter (also known as a 45 rpm record insert, 45 rpm spindle adapter, spider, or 7-inch adapter in reference the usual size of a 45 rpm record) is a small plastic or metal insert that goes in the middle of a 45-rpm record so it can be played on the standard size spindle of a turntable.
Rebar (short for reinforcing bar), known when massed as reinforcing steel or steel reinforcement, [1] is a steel bar used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and aid the concrete under tension. Concrete is strong under compression, but has low tensile strength.
Washer (hardware) A washer is a thin plate (typically disk-shaped, but sometimes square) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. Other uses are as a spacer, spring (Belleville washer, wave washer), wear pad, preload indicating device, locking device, and ...
Examples of modern plastic and wooden window profiles with insulated glazing. An adhesive, primary sealant (polyisobutylene) is applied to the face of the spacer on each side and the panes pressed against the spacer. If the unit is gas-filled, two holes are drilled into the spacer of the assembled unit, lines are attached to draw out the air ...
A pizza saver is made of plastic and has three legs, sometimes four. They are often white, and the common practice is to place one pizza saver in the center of the pizza before the box lid is closed for delivery. The pizza saver is not reused and is typically discarded by the patron, although some people have found secondary uses for them [4 ...
Most modern windows use glazing spacers to keep the distance between their panes for sealing purposes. Many of these spacers are made from aluminum, which is a very conductive material. There is a better alternative for higher insulation performance: special plastic spacers, generally referred to as 'warm-edge spacers'.
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