Flier: Strong-DriveÂ® Structural Wood Screws for Interior and Exterior ...

STRONG-DRIVE ® 

STRUCTURAL 

WOOD SCREWS 

for Interior and Exterior 

Fastening Applications 

Easy to Drive Washer Head Tested Performance

Strong-Drive ® Structural Wood Screws 

High Strength and Easy 

Installation for Interior and 

Exterior Applications 

Simpson Strong-Tie has expanded the 

Strong-Drive ® SDW wood screw product 

line with two new screws designed to 

provide an easy-to-install, high-strength 

alternative to through-bolting and traditional 

lag screws. The new SDWS and SDWH 

structural wood screws are ideal for the 

contractor and do-it-yourselfer alike. 

Features: 

• Bold thread design provides 

superior holding power 

• Patented 4CUT tip ensures 

fast starts, reduces installation 

torque and eliminates the need for 

pre-drilling in most applications 

• Under-head nibs offer greater installer 

control when seating the head 

• Large washer head provides 

maximum bearing area 

SDWS 

(6-lobe drive) 

SDWH 

(Hex head) 

F-SDWSSDWH12C © 2012 Simpson Strong-Tie Company Inc. 

2

SDWS Structural Wood Screws 

Strong-Drive ® SDWS 

Structural Wood Screw 

The Simpson Strong-Tie ® Strong-Drive ® SDWS wood screw is 

specifically designed for structural wood-to-wood applications 

and is also ideal for a wide variety of projects where a highstrength 

attachment is needed. This 0.220" diameter fastener 

requires less torque to install than comparable fasteners, 

making it easier to drive, and the corrosion-resistant coating 

makes it suitable for interior or exterior applications. 

Features: 

• Deep, 6-lobe recess 

reduces cam-out, making 

driving easier 

• Low-profile head design 

provides a clean look and 

less interference after 

installation 

• Double-barrier coating 

provides corrosion resistance 

equivalent to hot-dip 

galvanization, making it 

suitable for certain exterior 

and preservative-treated 

wood applications 

The 6-lobe drive prevents 

cam-out and head stripping 

L 

0.220" 

TL 

0.75" 

SDWS 

U.S. Patents 5,897,280; 

7,101,133, and patent pending 

Identification on all 

SDWS screw heads 

Lengths 

3" 

4" 

5" 

6" 

8" 

10" 

Stamp 

WS22 

3 

WS22 

5 

WS22 

8 

WS22 

4 

WS22 

6 

WS22 

Installs best with a 

low-speed 1 ⁄2" drill 

motor with a T-40 bit 

(bit included in each package). 

10 

Available in retail packs 

as well as mini-bulk and 

bulk buckets 


The SDWS screw is designed for structural fastening 

applications such as deck ledgers. 

Easy to drive. 

3


SDWS Screw Product Information 

Size 

Dia. x L 

(in.) 

Fasteners 

Per Pack 

Retail Pack 1 Mini-Bulk Bucket 1 Mini-Bulk 1 Bulk 1 

Packs 

Per 

Master 

Carton 

Model No. 

Fasteners 

Per Pack 

Packs 

Per 

Master 

Carton 

Model No. 

Fasteners 

Per Pack 

Model No. 

Fasteners 

Per Pack 

Model No. 

0.220 x 3 12 10 SDWS22300DB-RC12 50 6 SDWS22300DB-R50 250 SDWS22300DBMB 950 SDWS22300DB 





0.220 x 10 12 10 SDWS221000DBRC12 50 6 SDWS221000DB-R50 — — 250 SDWS221000DB 

1. Retail and mini-bulk packs include one deep, 6-lobe, T-40 driver bit; bulk packs include two driver bits. 

Factored Resistances for D.Fir-L Members (lbs.) 

Size 

Dia. x L 

(in.) 

See footnotes below. 

Model 

Thread 

Length 

TL 

(in.) 

D.Fir-L 

Factored Lateral Resistance (K D 

=1.00) 

Wood Side Member Thickness (in.) 

1.5 2 2.5 3 3.5 4 4.5 6 8 

Factored 

Withdrawal 

Resistance 

0.220 x 3 SDWS22300DB 1½ 340 — — — — — — — — 485 

0.220 x 4 SDWS22400DB 2⅜ 445 455 430 — — — — — — 795 

0.220 x 5 SDWS22500DB 2¾ 445 505 540 490 430 — — — — 935 

0.220 x 6 SDWS22600DB 2¾ 460 515 565 565 560 505 445 — — 935 

0.220 x 8 SDWS22800DB 2¾ 460 515 565 565 565 565 565 505 — 935 

0.220 x 10 SDWS221000DB 2¾ 460 515 565 565 565 565 565 565 505 935 

L 

TL 

Factored Resistances for S-P-F Members (lbs.) 

Size 

Dia. x L 

(in.) 

Model 

Thread 

Length 

TL 

(in.) 

1. Factored resistances shown have been developed in accordance with 10.11 

CSA O86-09 based on testing per ICC-ES AC233. Apply the adjustment factors 

K D 

, K SF 

and K T 

as per 10.11.4.1 when applicable. Do not install in end grain. 

2. Factored withdrawal resistances shown are only applicable 

to short term loads as per 10.11.5.1 CSA O86-09. 

3. Factored withdrawal resistances shown assume the entire threaded portion 

of the screw is installed into the main member. Where the penetration 

S-P-F 


=1.00) 


1.5 2 2.5 3 3.5 4 4.5 6 8 

into the main member is less than the length of the thread, the factored 

resistances may be calculated by multiplying the length of penetration 

of the threads x 355 lbs/in (62 N/mm) for D.Fir-L and 270 lbs/in (47 

N/mm) for S-P-F. to a maximum of the tabulated value above. 

4. Minimum spacing, edge and end distances shall be in accordance with 

10.9.2.1 CSA O86-09 using a diameter value of 0.30". See table below. 

5. Divide table value by 224.8 to convert to kN (1 kN = 224.8 lbs). 

Factored 

Withdrawal 

Resistance 

0.220 x 3 SDWS22300DB 1½ 290 — — — — — — — — 370 

0.220 x 4 SDWS22400DB 2⅜ 390 390 380 — — — — — — 605 

0.220 x 5 SDWS22500DB 2¾ 395 445 485 430 380 — — — — 620 

0.220 x 6 SDWS22600DB 2¾ 405 455 505 510 495 445 395 — — 620 

0.220 x 8 SDWS22800DB 2¾ 405 455 505 510 510 510 510 445 — 620 

0.220 x 10 SDWS221000DB 2¾ 405 455 505 510 510 510 510 510 445 620 

Spacing Requirements 

Geometry 

Minimum Dimensions 

(in) 

D.Fir-L 

S-P-F 

a - Spacing parallel to grain 6 5 

b - End distance parallel to grain 6 6 

c - Spacing perpendicular to grain 3 2 1 ⁄2 

d - Edge distance perpendicular to grain 1 7 ⁄16 1 7 ⁄16 

6" Min. 

end distance 

(b) 

Spacing 

between 

fasteners 

perpendicular 

to grain 

(c) 

1 7 ∕16" Min. 

edge distance 

(d) 

Spacing between fasteners 

parallel to grain 

(a) 


1. Additional screws may be staggered diagonally between rows. 


4


Maximum Fastener Spacing for Solid Sawn Lumber Deck Ledger to Rim Board (in.) 

Ledger 

Size 

2x 

Model 

SDWS22400DB 

2-2x SDWS22500DB 

Specified 

Live Load 

40 psf 

(1.9 kPa) 

50 psf 

(2.4 kPa) 

100 psf 

(4.8 kPa) 

40 psf 

(1.9 kPa) 

50 psf 

(2.4 kPa) 

100 psf 

(4.8 kPa) 

Rim Board 

1. Solid Sawn lumber ledger board shall be a minimum of 2x8 

or 2-2x8. Spacings apply to S-P-F, Hem-Fir or D.Fir-L. 

2. Minimum structural panel thickness shall be 0.30" (7.5 mm) 

fastened to the rim board per applicable code. 

3. Multi-ply 2-2x ledger board must be fastened together to 

act as one unit independent of the SDWS screws. 

4. Spacing requirements are based on testing per ICC-ES AC233 and AC13 modified 

to meet the requirements of 10.11 CSA O86-09 assuming wet service conditions. 

For dry service conditions, multiply the tabulated spacing values by 1.5. 

Maximum Deck Joist Span (ft.) 

6 8 10 12 14 16 

1" OSB 10 7 6 5 4 3 

1⅛" OSB 10 8 6 5 4 4 

1¼" LSL 11 8 6 5 4 4 

2x SPF 12 9 7 6 5 4 

1" OSB 8 6 5 4 3 3 

1⅛" OSB 9 6 5 4 3 3 

1¼" LSL 9 7 5 4 4 3 

2x SPF 10 7 6 5 4 3 

1" OSB 4 3 — — — — 

1⅛" OSB 4 3 — — — — 

1¼" LSL 5 3 3 — — — 

2x SPF 5 4 3 — — — 

1" OSB 13 10 8 6 5 5 

1⅛" OSB 14 10 8 7 6 5 

1¼" LSL 14 11 8 7 6 5 

2x SPF 15 11 9 7 6 5 

1" OSB 11 8 6 5 4 4 

1⅛" OSB 11 8 7 5 5 4 

1¼" LSL 12 9 7 6 5 4 

2x SPF 12 9 7 6 5 4 

1" OSB 6 4 3 3 - - 

1⅛" OSB 6 4 3 3 - - 

1¼" LSL 6 4 3 3 - - 

2x SPF 6 5 4 3 - - 

5. Tabulated values are based on the listed specified live loads in 

combination with 10 psf (0.50 kPa) specified dead load. 

6. For 1¼" LVL rim board made with Douglas Fir or Southern 

Pine veneers, use the values listed for 1¼" LSL. 

7. SDWS screws shall be placed no less than 1½" from the top and bottom of the 

ledger or rim boards. The minimum end distance shall be 6" and the minimum 

spacing perpendicular to grain shall be 3". See figures below for full details. 


Exterior cladding 

and flashing not 

shown for clarity 

Floor 

joist or 

blocking 

Rim board 

per Table 

Ledger-to-Rim Board Assembly 

(Wood-framed lower floor acceptable, 

concrete wall shown for illustration purposes) 

Wood structural 

panel sheathing 

7.5 mm min. thickness 

fastened per code 

SDWS wood screws 

stagger vertically 

space in accordance 

with Table 

2" nominal deck 

ledger shown 

(double 2" 

ledger similar) 

1 1 ⁄2" minimum from 

top of ledger and rim board 

6" from end 

of ledger 

On-center 

spacing of 

SDWS wood 

screws 

SDWS Screw Spacing Detail 


bottom of ledger 

and rim board 

3" minimum 

row spacing 

5

SDWH Structural Wood Screws 

Strong-Drive ® SDWH 

Structural Wood Screw 

The Simpson Strong-Tie ® Strong-Drive ® SDWH screw 

is ideal for structural and general-purpose fastening 

applications where a hex-head drive is preferred. This 

0.195" diameter fastener requires less torque to install 

than comparable fasteners, making it easier to drive; 

while the corrosion-resistant coating makes it suitable 

for interior and exterior applications. 

Features: 

• Large hex-washer head 

provides excellent bearing 

area for a secure connection 

• Hex drive reduces cam-outs 

for easier driving 

• Double-barrier coating 

provides corrosion resistance 

equivalent to hot-dip 

galvanization, making it 

suitable for certain exterior 

and preservative-treated 

wood applications 

Hex-washer head provides 

excellent bearing area 

L 

0.195" 

TL 

0.64" 

SDWH 

U.S. Patents 5,897,280; 

7,101,133, and patent pending 

Identification on all 

SDWH screw heads 

Lengths 

3" 

4" 

6" 

8" 

10" 

Stamp 

193 

196 

1910 

194 

198 

Installs best with a 

low-speed 1 ⁄2" drill motor 

with a 5 ⁄16" hex driver 

(driver included in each package) 

Available in retail packs 

as well as mini-bulk and 

bulk buckets 

The SDWH can replace multiple smaller fasteners 

in many applications. 

The SDWH screw is designed for structural fastening 

applications such as ledgers. 


6

XXX 

XXX 

XXX 

XXX 

XXX 


SDWH Screw Product Information 

Size 

Dia. x L 

(in.) 

Fasteners 

Per Pack 

Retail Pack 1 Mini-Bulk Bucket 1 Mini-Bulk 1 Bulk 1 

Packs 

Per 

Master 

Carton 

Model No. 

Fasteners 

Per Pack 

Packs 

Per 

Master 

Carton 

Model No. 

Fasteners 

Per Pack 

Model No. 

Fasteners 

Per Pack 

Model No. 

0.195 x 3 12 10 SDWH19300DB-RC12 50 6 SDWH19300DB-R50 250 SDWH19300DBMB 1000 SDWH19300DB 




0.195 x 10 12 10 SDWH191000DBRC12 50 6 SDWH191000DB-R50 — — 250 SDWH191000DB 

1. Retail and mini-bulk packs include one 5∕16" Hex driver bit; bulk packs include two driver bits. 

Factored Resistances for D.Fir-L Member (lbs.) 

Size 

Dia. x L 

(in.) 

See footnotes below. 

Model 

Thread 

Length 

TL 

(in.) 

D.Fir-L 


=1.00) 


1.5 2 2.5 3 3.5 4 4.5 6 8 

Factored 

Withdrawal 

Resistance 

0.195 x 3 SDWH19300DB 1½ 305 — — — — — — — — 440 

0.195 x 4 SDWH19400DB 2⅜ 380 415 370 — — — — — — 715 

0.195 x 6 SDWH19600DB 2¾ 390 440 460 460 460 430 375 — — 840 

0.195 x 8 SDWH19800DB 2¾ 390 440 460 460 460 460 460 430 — 840 

0.195 x 10 SDWH191000DB 2¾ 390 440 460 460 460 460 460 460 430 840 

L 

TL 

Factored Resistances for S-P-F Members (lbs.) 


Size 

Dia. x L 

(in.) 

Model 


Geometry 

Thread 

Length 

TL 

(in.) 

1. Factored resistances shown have been developed in accordance with 10.11 

CSA O86-09 based on testing per ICC-ES AC233. Apply the adjustment factors 

K D 

, K SF 

and K T 

as per 10.11.4.1 when applicable. Do not install in end grain. 

2. Factored withdrawal resistances shown are only applicable 

to short term loads as per 10.11.5.1 CSA O86-09. 

3. Factored withdrawal resistances shown assume the entire threaded portion 

of the screw is installed into the main member. Where the penetration 

into the main member is less than the length of the thread, the factored 

Minimum Dimensions 

(in.) 

D.Fir-L 

S-P-F 

a - Spacing parallel to grain 6 5 

b - End distance parallel to grain 6 6 

c - Spacing perpendicular to grain 3 2 1 ⁄2 

d - Edge distance perpendicular to grain 1 7 ⁄16 1 7 ⁄16 

resistances may be calculated by multiplying the length of penetration of 

the threads x 315 lbs/in (55 N/mm) for D.Fir-L and 240 lbs/in (42 N/mm) 

for S-P-F. to a maximum of the tabulated value above. 

4. Minimum spacing, edge and end distances shall be in 

accordance with 10.9.2.1 CSA O86-09 using a diameter value 

of 0.268". See spacing requirements information below. 

5. Divide table value by 224.8 to convert to kN (1kN = 224.8 lbs.). 

6" Min. 

end distance 

(b) 

Spacing 

between 

fasteners 

perpendicular 

to grain 

(c) 

1 7 ∕16" Min. 

edge distance 

(d) 

S-P-F 


=1.00) 


1.5 2 2.5 3 3.5 4 4.5 6 8 

Spacing between fasteners 

parallel to grain 

(a) 

Factored 

Withdrawal 

Resistance 

0.195 x 3 SDWH19300DB 1½ 260 — — — — — — — — 335 

0.195 x 4 SDWH19400DB 2⅜ 335 355 325 — — — — — — 545 

0.195 x 6 SDWH19600DB 2¾ 345 390 415 415 415 380 330 — — 620 

0.195 x 8 SDWH19800DB 2¾ 345 390 415 415 415 415 415 380 — 620 

0.195 x 10 SDWH191000DB 2¾ 345 390 415 415 415 415 415 415 380 620 

1. Additional screws may be staggered diagonally between rows. 


7

XXX 

XXX 

XXX 

XXX 


Maximum Fastener Spacing for Solid Sawn Lumber Deck Ledger to Rim Board (in.) 

Ledger 

Size 

2x 

Model 

SDWH19400DB 

Specified 

Live Load 

40 psf 

(1.9 kPa) 

50 psf 

(2.4 kPa) 

100 psf 

(4.8 kPa) 

1. Solid Sawn lumber ledger board shall be a minimum of 2x8 

or 2-2x8. Spacings apply to S-P-F, Hem-Fir or D.Fir-L. 

2. Minimum structural panel thickness shall be 0.30" (7.5 mm) 

fastened to the rim board per applicable code. 

3. Multi-ply 2-2x ledger board must be fastened together to 

act as one unit independent of the SDWS screws. 

4. Spacing requirements are based on testing per ICC-ES AC233 and AC13 modified 

to meet the requirements of 10.11 CSA O86-09 assuming wet service conditions. 

For dry service conditions, multiply the tabulated spacing values by 1.5. 

Rim Board 

Maximum Deck Joist Span (ft.) 

6 8 10 12 14 16 

1" OSB 9 7 5 4 4 3 

1⅛" OSB 9 7 5 4 4 3 

1¼" LSL 10 7 6 5 4 3 

2x SPF 11 8 6 5 4 4 

1" OSB 7 5 4 3 3 — 

1⅛" OSB 8 6 4 4 3 3 

1¼" LSL 8 6 5 4 3 3 

2x SPF 9 6 5 4 3 3 

1" OSB 4 3 — — — — 

1⅛" OSB 4 3 — — — — 

1¼" LSL 4 3 — — — — 

2x SPF 4 3 — — — — 

5. Tabulated values are based on the listed specified live loads in 

combination with 10 psf (0.50 kPa) specified dead load. 

6. For 1¼" LVL rim board made with Douglas Fir or Southern 

Pine veneers, use the values listed for 1¼" LSL. 

7. SDWH screws shall be placed no less than 1½" from the top and bottom of the 

ledger or rim boards. The minimum end distance shall be 6" and the minimum 

spacing perpendicular to grain shall be 3". See figures below for full details. 

Exterior cladding 

and flashing not 

shown for clarity 

Wood structural 

panel sheathing 

7.5 mm min. thickness 

fastened per code 

Rim board 

per Table 


top of ledger and rim board 

Floor 

joist or 

blocking 

Ledger-to-Rim Board Assembly 

(Wood-framed lower floor acceptable, 

concrete wall shown for illustration purposes) 

SDWH wood screws 

stagger vertically 

space in accordance 

with Table 

2" nominal deck 

ledger shown 

(double 2" 

ledger similar) 

6" from end 

of ledger 

On-center 

spacing of 

SDWH wood 

screws 

SDWH Screw Spacing Detail 


bottom of ledger 

and band joist 

3" minimum 

row spacing 


This flier is effective until December 31, 2014, and reflects information available as of September 1, 2012. 

This information is updated periodically and should not be relied upon after December 31, 2014; contact 

Simpson Strong-Tie for current information and limited warranty or see www.strongtie.com. 

© 2012 Simpson Strong-Tie Company Inc. • P.O. Box 10789, Pleasanton, CA 94588 F-SDWSSDWH12C 9/12 exp. 12/31/15 

800-999-5099 

www.strongtie.com

Flier: Strong-DriveÂ® Structural Wood Screws for Interior and Exterior ...

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