Use and Care Manual

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MiTek

Product Catalog

General Information

Material

MiTek selects steel for its various products in accordance with application

needs and steel properties, including tensile strength, ductility, corrosion

resistance, gauge, and weldability. See specic code evaluation reports or

consult MiTek for additional steel information on specic products. products

are manufactured from steel which meets ASTM A 653, ASTM A 1011, or

ASTM A 36, ASTM A1018 or ASTM A666 standards.

Testing and Product Design Loads

On all structurally-rated products, MiTek performs calculations and full-

scale testing in accordance with ICC-ES AC13, ASTM D7147, and other

applicable ICC-ES acceptance criteria and standards recognized by model

code agencies. All testing is conducted or veried by an approved IAS

accredited third-party testing laboratory which generates an independent

test report. In accordance to these standards the design loads for joist

hangers and similar devices listed are the lowest results obtained from

one of the following methods:

1) The lowest ultimate tested load divided by three.

2) Average load producing 1/8" deection.

3) Calculations based 2018 NDS

and applicable Standards.

The allowable loads for some products have been increased in accordance

with the NDS

by applying a Load Duration Factor, C

for fasteners in wood.

Stress increases have not been applied to steel components of the products.

Floor / Design Load ....... 100% (no increase).

Roof Snow .....................115% of design load for 2-month duration of load

Roof Non-Snow .............125% of design load for 7-day duration of load.

Uplift ............................. 160% of design load for wind/seismic loading

Spruce-Pine-Fir or Hem Fir Equivalent Capacity

Unless otherwise noted, the published design loads in this catalog apply to

Douglas Fir-Larch or Southern Pine lumber. When Spruce-Pine-Fir or Hem

Fir lumber is used with face mount hangers or straps, the allowable load

capacity may be adjusted according to the chart below.

Installation Notes

1) Use proper safety equipment during connector installations. Always

wear gloves when handling connectors.

2) All welding should be done in accordance with the American Welding

Society (AWS) Standard by a certied welder. Caution: Welding

galvanized steel may produce harmful fumes and should only

be performed in well-ventilated environments.

3) The proper type and quantity of fasteners must be used to install

MiTek products. To achieve the published allowable loads, install

with the fasteners specied for that particular product. Some

products allow for alternate nail installations. Refer to the “Optional

Nails for Face Mount Hangers and Straight Straps” chart on page 22

of this catalog for load adjustments when using alternate nailing. All

specied fasteners must be properly installed prior to applying load

to the connection.

4) Drill bolt holes a minimum of 1⁄32" and a maximum of 1⁄16" larger

than the diameter of the bolt to be installed (per the 2018 NDS

Section 11.1.3).

5) Washers should always be used under the head or nut of a bolt when

not in contact with the connector unless noted otherwise.

6) It may be permissible to install some connectors with TECO

pneumatic nails provided the nail length and diameter are the

same and are installed through all pre-punched nail holes. MiTek

recommends the use of nail guns featuring hole-locating mechanisms.

Please note that many nail guns use fasteners that are shorter than

the common nail size and load reductions will result. Contact MiTek

Engineering. Caution: Always follow nail gun manufacturer’s

safety guidelines.

7) Joists installed in hangers should bear fully on the connector seat

and shall be cut to t against the header with a gap no greater than

1⁄8" between the joist end and header face.

8) Multiple-ply members must be properly fastened together to distribute

loads as a single member.

9) Top mount hangers shall be installed with the back of the hanger tight

to the face of the header.

10) Top mount hangers installed in oor systems may produce

unevenness. This will vary based on thickness of the top ange

and nail heads. If a problem is anticipated, the effects can

be mitigated by dapping or notching the beam or cutting the

suboor at hanger locations. Face mount hangers will eliminate

this problem.

Based on our experience, we do not believe that our products when

used as intended present an exposure risk of ingestion, inhalation or by

absorption through the skin to any of Prop 65’s current list of chemicals.

Nonetheless, out of an abundance of caution, and in the event our MiTek

products are misused or used in ways we do not foresee, we are taking

the precaution of placing a short‐form Prop 65 warning on the labels of

our retail packaged products, and in some instances, on signs posted in

the California retail locations where our products are sold to consumers

without labels.

MiTek manufactures and supplies some products that are not intended

as consumer products, and are sold through professional construction

supply channels and/or delivered directly to job sites. These products

will not carry the Prop 65 warning. To learn more about the California

Proposition 65, visit www.P65Warning.ca.gov. For MiTek specic

questions please contact MiTek Customer Service at 800‐328‐5934

with any questions or visit our website, MiTek‐US.com.

THIS IS A REQUIREMENT ONLY FOR THE STATE OF CALIFORNIA.

Douglas Fir-Larch (DF) 0.50 1.00

Southern Pine (SP) 0.55 1.00

Spruce-Pine-Fir (S-P-F) 0.42 0.86

)

Allowable loads must be ad

usted accordin

to the a

licable wood s

ecies.

)

When usin

structural com

osite lumber,

verif

wood s

ecies and use above listed

ustment factors.

Douglas Fir (S)

Hem Fir (N)

0.46 0.88

Allowable Load Adjustment Factor

Wood

Species

Specific

Gravity

Adjustment

Factor