Remington 498 User Manual download pdf (Page 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 power 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,

penetration should be approximately 1

" to 1

" into the

base concrete. Make sure the concrete is at least three

times as thick as the intended power 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

power fastener does not penetrate, the spring action of

the steel pushes back on the point and tends to force

the power 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 498 User Manual Page 12