Remington 500V Manual de usuario descargar pdf (Pagina 12)

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Why A Power Fastener Holds

WHY A POWER FASTENER HOLDS

IN CONCRETE

The compression bond of the concrete to the power

fastener accounts for the majority of the holding power.

The fastener displaces the concrete which tries to return

to its original form causing a squeezing effect.

Maximum holding power is achieved when the depth of

penetration produces a bond on the power fastener equal

to the strength of the concrete. As a general rule, pene-

tration should be approximately 1" to 1

" into the base

concrete. Make sure the concrete is at least three times

as thick as the intended fastener penetration. Never have

the power fastener point protrude through the concrete.

NOTE: Concrete needs to cure for 28 days before

maximum fastening holding power will be achieved.

WHY A POWER FASTENER HOLDS IN

STEEL

Holding power in steel depends on the elasticity of the

steel. The steel pushes back on the shank of the power

fastener.

Drop a marble into water; the water parts, the marble

continues down, the water closes back. This is similar to

the reaction when a power fastener penetrates steel.

In steel, the point of the power fastener must penetrate

completely through for highest holding power. If the fastener

does not penetrate, the spring action of the steel pushes

back on the point and tends to force the fastener out.

Recommended applications are between 3/16-3/8" steel.

NOTE: When fastening in steel be sure the point goes

through the steel.

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Remington 500V Manual de usuario Pagina 12