Why A Power Fastener Holds; Why A Power Fastener Holds In Concrete; Why A Power Fastener Holds In Steel - Remington r300 Operating Instructions Manual

Why a power
Fastener Holds

WHY a pOWEr FaStEnEr HOLDS

In COnCrEtE
The compression bond of the con-
crete to the power fastener accounts
for the majority of the holding power.
The power fastener displaces the con-
crete which tries to return to its original
form causing a squeezing effect.
Maximum holding power is achieved
when the depth of penetration pro-
duces a bond on the power fastener
equal to the strength of the concrete.
As a general rule, penetration should be approximately 1" to 1 / "
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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 thru the concrete.
nOtE: Concrete needs to cure for 28 days before maxi-
mum 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 fas-
tener penetrates steel.
In steel, the point of the power fastener must penetrate com-
pletely 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 thru
the steel.
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