Powers Fasteners P2201 - P2201 Installation and Base Material Guidelines; Base Material Suitability and Center Punch Test; Fastener Installation Requirements; Fastener Penetration and Length Selection

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or cut with a torch as these procedures may have caused local

hardening of the steel. Over driving of the fastener should be

avoided as the rebound created may reduce the load capacity or

cause damage to the fastener. When fastening into unsupported

long steel members, it may be necessary to provide support in

the area of the fastening to prevent spring action which can

cause inconsistent penetration and a reduction in load capacity.

SUITABLE BASE MATERIAL

While powder actuated fasteners can be used successfully in

concrete, certain masonry materials, and A 36 steel, some

materials are completely unsuitable. Fasteners should never be

fired into hard or brittle materials such as cast iron, tile, glass, or

rock. These materials can shatter easily resulting in a potential

safety hazard. In addition, soft base materials such as wallboard,

plaster, or wood are not appropriate as the fastener could pass

completely through these materials. The user should never guess

when fastening into any base material. Failure to follow the

recommended installation and safety guidelines can result in

severe injury or death to the tool operator and/or bystanders.

CENTER PUNCH TEST

A center punch test should always be

performed to determine the suitability of

the base material for a powder actuated

fastening. This test is relatively simple and

can help to insure a safe, successful

fastening. Be sure to wear the appropriate

eye protection when performing this test.

To begin, select the fastener to be used for

the job. Then, place the point of the

fastener against the proposed base

material. Strike the fastener with a single

hammer blow, then examine the point. If

the point of the fastener is not blunted

and the base material has a clear point

indentation, it is acceptable to proceed

with the first test installation.

Use of a powder actuated system is not

recommended if the following occurs during

the center punch test:

1. The fastener point has been blunted. This

indicates that the base material is too hard.

2. The base material cracks or shatters.

This indicates that the base material is too brittle.

3. When using an average hammer blow, the fastener

penetrates the base material easily. This indicates that the base

material is too soft.

FASTENER INSTALLATION REQUIREMENTS

It is important to understand the required minimum base

material thickness requirements along with the minimum

spacing and edge distance requirements. Failure to follow these

requirements can result in an unsuccessful fastening and create

a safety hazard.

BASE MATERIAL THICKNESS

Concrete base material should be at least three (3) times as

thick as the fastener embedment penetration. If the concrete is

too thin, the compressive forces forming at the fasteners point

can cause the free face of the concrete to break away. This can

create a dangerous condition from flying concrete and/or the

fastener and also results in a reduction of fastener holding

power. For applications in the face shell of concrete masonry

block, select a fastener length which will not exceed the

thickness of the face shell.

FASTENER PENETRATION GUIDE

The following table lists typical

embedment or penetration depths

expected in the base materials listed.

The penetration will vary depending on

the density of the material. This table

should be used as a guide since the

consistency of these materials varies.

When in doubt, a job site performance

test should be conducted.

ENSITY TYPICAL BASE MATERIAL PENETRATION

Soft Masonry Concrete block 1" - 1-1/4"

Average concrete Poured concrete 3/4" - 1"

Dense concrete Pre-stressed/ 5/8" - 3/4"

pre-cast concrete

EDGE DISTANCE

Do not fasten closer than 3" from the

edge of concrete. If the concrete cracks, the

fastener may not hold. Closer edge

distances for applications such as sill plates

may be permitted if specific fastener testing

has been conducted.

SPACING

Setting fasteners too close together in

concrete or masonry can cause cracking.

The recommended minimum distance

between fasteners is 3" center to center.

FASTENER LENGTH SELECTION IN CONCRETE

For permanent applications using pins in concrete, first

determine the thickness of the fixture to be fastened. To this, add

the required embedment or penetration into the base material.

This will be the fastener shank length required. For applications

in the face shell of masonry block, select a fastener length which

will not exceed the thickness of the face shell.

For removable applications with

threaded studs, the shank length required

is equal to the embedment depth required.

To determine the minimum threaded

length, add the thickness of the fixture

and the nut / washer thickness. The nut

and washer thickness is equal to the

nominal thread diameter. Do not over

tighten threaded parts. Maximum

tightening torque values are listed in the

table below. Use of a nut setter is

recommended to reduce the possibility of

over tightening the fasteners. For critical

applications, perform a job site test.

MAXIMUM TORQUE MAXIMUM TORQUE

FOR 1/4" STUD (FT.-LBS.) FOR 3/8" STUD (FT.-LBS.)

INSTALLATION IN STEEL

The following guidelines are based on the installation of a

fastener in ASTM A 36 structural steel with the point fully

penetrating the steel member. Recommended steel material

thickness ranges from a minimum of 1/8" to a maximum of

3/8". For use in higher strength structural steel, applications

where the point does not penetrate the steel member, or a

thickness of steel greater than 3/8", job site performance tests

are recommended.

MODEL P2201 CAT. NO.52006/Deluxe Kit 52007/Blister Pack

3 P2201

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Powers Fasteners P2201 - P2201 Installation and Base Material Guidelines; Base Material Suitability and Center Punch Test; Fastener Installation Requirements; Fastener Penetration and Length Selection

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