Use and Care Manual

ManualsBrandsMiTek ManualsBuilding Hardware1-1/2 in. x 1-1/2 in. x 1-1/4 in. G185 16-Gauge Framing Angle (1-Pack)

Fasteners

MiTek

Product Catalog

WSWH Washer Head Interior Structural Wood Screw Application

* T30 is a trademark of Acument

1.50" minimum

to loaded edge

1.50" minimum

to loaded edge

1.50" minimum

to loaded edge

0.75" minimum

to unloaded edge

0.75" minimum

to unloaded edge

0.75" minimum

to unloaded edge

2x10 Detail

2x12 Detail

2x6 Detail

0.75" minimum

to unloaded edge

2x8 Detail

1.50" minimum

to loaded edge

2x6 2 520 455

2x8 or 2x10 3 860 750

2x12 4 1040 900

1) Zinc = Yellow Zinc Dichromate; EXT = Exterior Coat.

2) Allowable loads are based on DF or equivalent wood members with a specific gravity ≥ 0.50,

or SPF/HF members with specific gravity in the following range: 0.42

SG < 0.50.

3) Gypsum board must be attached per building code requirements.

4) Screws must be installed in the center of the 2x stud, with a tolerance of 3/16" to

either side. Minimum loaded end distance for the stud is 3" and 6" when loaded away

from the end. Ledger end distance must be 6" or greater for full values. For ledger end

distances between 2" and 6" use 50% of the load table, for end distance between

2" and 4" predrill with a 5/32" bit.

5) The values above can be used when designing a ledger connection with (1) or (2)

layers of 5/8" gypsum board, a direct connection with no gypsum between the ledger

and studs, or a ledger connection with a single layer of APA rated 1/2" OSB.

6) Allowable loads are shown above at a load duration factor of C

= 1.00. Loads

may be increased where applicable to the current NDS. When in-service moisture

content is greater than 19%, use C

= 0.70.

7) For LRFD values, the values above should be adjusted in accordance with the

2018 NDS, Section 11.3.

8) Main members (stud) shall be loaded parallel to grain with a minimum penetration

of 2-1/4" while side members (ledger) shall be loaded perpendicular to grain with

a minimum penetration of 1-1/2".

WSWH45

WSWH5

EXT

Finish

WSWH45-EXT

WSWH5-EXT

MiTek Stock No.

Allowable Shear Per Stud (Lbs.)

2,5,6,7

DF/SP

SG ≥ 0.50

S-P-F/HF

0.42 ≤ SG < 0.50

Ledger

Size

Number

of Screws

per Stud

4,8

Zinc

Finish

Attaching 2x Ledger-to-Wall Studs Application

MiTek’s WSWH Washer Head Structural Wood Screw can be used to attach a ledger to studs

directly, through 1/2" APA rated sheathing or through one or two layers of 5/8" gypsum

wallboard (drywall). Screws are to be installed into the wide face of the single 2x

ledger, through the gypsum board and into the center of the narrow face of the 2x stud.

Installation:

• Ledger design to be performed by a certied design professional.

• Locate studs in wall where ledger is to be installed.

• Install MiTek’s WSWH5 structural wood screws through ledger and 5/8" gypsum

wallboard into wall framing using a T30* drive.

• Follow the minimum edge distance guidelines in images shown below.

• Wall design must be performed by certied design professional.

• Care should be taken to install the ledger only where studs are plumb

and free of any defects.

• WSWH45 should be used when no gypsum wallboard is present.

Typical 2x8 Ledger attached through

2 layers of 5/8" Gypsum Wallboard installation

Stud Wall

2 Layers of

5/8" Gypsum

Wallboard

WSWH5

Screws

3 per stud

2x8 Ledger

WSWH5

(Yellow Zinc nish)

WSWH45

(Exterior Coat nish)

4-1/2"