Strong-Drive® SD Structural-Connector Screw

The Strong-Drive® SD Structural-Connector screw is specifically designed for use with Simpson Strong-Tie® connectors

Designed to replace nails in certain products, the load-rated SD screw has been tested and approved for use in many popular Simpson Strong-Tie® products. In certain applications screws are easier and more convenient to install than nails, and the single-fastener load values achieved by the SD9 and SD10 exceed those of typical 10d common or 16d common nails, respectively. In addition, the galvanized coating makes the SD screw ideal for interior and most exterior conditions.

The SD structural-connector screw features an optimized shank which is specifically designed to be compatible with the fastener holes in Simpson Strong-Tie connectors. The hex head virtually eliminates cam-out and helps avoid stripping of the head during installation. The sharp point of the screw enables fast starts, and the patented serrated threads reduce torque for improved drivability.

Find this fastener in the Fastener Finder

Head Identification

#9 x 1 1/2"

#9 x 2 1/2"

#10 x 1 1/2"

#10 x 2 1/2"

Features:

Specifically designed to replace nails in certain Simpson Strong-Tie®
connectors, and is the only screw approved for that application. The #9 and #10 SD screws replace 10d and 16d nails respectively.
Tested and approved for use in many of our best-selling connectors for both interior and most exterior applications.*

* See list of suitable connectors.
Ideal for use in connector applications where more control is desired or using a hammer is inconvenient.
1/4" hex head reduces cam-out for easier installation and is stamped with the Simpson Strong-Tie "≠" sign and the fastener size for easy identification after installation
Shank is specifically designed to match the fastener holes in Simpson Strong-Tie connectors
Patented serrated threads and sharp point make driving easier
Optimized heat treating for ductility and strength
The single-fastener load capacity of the SD9 exceeds the capacity of a 10d common nail, while the single-fastener load capacity of the SD10 exceeds that of the 16d common nail
Mechanically-galvanized coating meets ASTM B695 Class 55, is recommended for use with certain preservative-treated woods and is compliant with the 2006 and 2009 International Residential Code® (2006 Section R319.3, 2009 Section R317.3.1)
Connectors installed with the SD screw code listed under ICC-ES ESR-3096

Material: Heat-treated carbon steel.

Finish: Mechanically galvanized (ASTM Class 55)

roll over images below to see larger image


Strong-Drive® SD Screws U.S. Patent 7,101,133	SD10 (SD9 similar)	Identification on all SD screw heads (SD10212 shown)


LUSZ installation with SD screws	ABA44Z installation with SD Screws	H1Z installation with SD screws

For allowable loads of connectors using SD Structural-Connector screws,
see Connectors Approved for Use with SD Screws below.

CODE REPORTS

Strong-Drive® SD Screws for Structural Connectors
ICC-ES has issued ESR-3046, stating that Strong-Drive® SD Screws for Structural Connectors screws are in compliance with the 2006/2009 IBC, in accordance with the most recent Acceptance Criteria for Alternate Dowel-type Threaded Fasteners (AC233).

Structural Connectors using Strong-Drive® SD Screws
ICC-ES has issued ESR-3096, recognizing the use of SD9 and SD10 Strong-Drive® Screws with many Simpson Strong-Tie® connectors.

Allowable Shear Loads with Steel Side Plate SD Screw Allowable Loads: Steel Side Plate

Allowable loads are shown at the wood load duration factor of C_D = 1.00. Loads may be increased for load duration per the building code up to a C_D = 1.60.
Allowable withdrawal load for DF/SP is 173 lbs./in. and for SPF/HF withdrawal is 122 lbs./in.. Total withdrawal load is based on actual thread penetration into the main member.
Withdrawal load for wood side member thickness of 15/32" is limited to the pull-through load of 130 lbs.

Allowable Shear Loads with Wood Side Plate SD Screw Allowable Loads: Steel Side Plate

Allowable loads are shown at the wood load duration factor of C_D = 1.00. Loads may be increased for load duration per the building code up to a C_D = 1.60.
The 15/32" and 23/32" side members must be plywood or OSB with minimum equivalent specific gravities of 0.50 for DF and SP design values, and 0.42 for SPF and HF design values.

These products are approved for installation with the Strong-Drive SD Structural-Connector screw.

* These connectors are code listed under ICC-ES ESR-3096 when installed with the SD screw. Check with your local building department to determine whether the correct size of SD structural-connector screw may be used as a suitable substitute for nails.

Model No.	SD9		SD10
Model No.	#9x1 1/2	#9x2 1/2	#10x1 1/2	#10x2 1/2
A21	•
A23	•
A33 *	•
A34 *	•
A35 *	•
A44 *	•
ABA44 *	•
ABA44R *	•
ABA46 *			•
ABA66 *			•
ABA66R *			•
ABU44 *			•
AC4 *			•
AC6 *			•
BC4 *			•
BC40 *			•
BC60 *			•
BCS2-2/4 *		•
CTS218	•
DJT14Z *				•
DPT5Z not load rated	•
DPT7Z not load rated	•
EPB44			•
EPB44PHDG			•
EPC44 *			•
EPC44-16 *			•
FB24 not load rated	•
FB24R not load rated	•
FB26 not load rated	•
FBR24 not load rated	•
FPBM44 not load rated	•
GA1 *	•
GA2 *	•
H1 *	•
H2.5 *	•
H2.5A *	•
Model No.	SD9		SD10
Model No.	#9x1 1/2	#9x2 1/2	#10x1 1/2	#10x2 1/2
H4 *	•
H5 *	•
H8 *	•
H10 *	•
HPTZ			•
HRS6 *	•
HRS8 *	•
HRS12 *	•
HTP37Z *	•
HUS26 *				•
HUS28 *				•
L30 *	•
L50 *	•
L70 *	•
L90 *	•
LCE4 *			•
LPC4 *	•
LSCZ	•
LSTA9 *	•
LSTA12 *	•
LSTA15 *	•
LSTA18 *	•
LSTA21 *	•
LSTA24 *	•
LSTA30 *	•
LSTA36 *	•
LSTI49 *	•
LSTI73 *	•
LTP4 *	•
LU24 (10d) *	•
LU26 (10d) *	•
LU28 (10d) *	•
LU210 (10d) *	•
LUC26Z (10d) *	•
LUC26Z (16d) *			•
LUC210Z (10d) *	•
LUC210Z (16d) *			•
Model No.	SD9		SD10
Model No.	#9x1 1/2	#9x2 1/2	#10x1 1/2	#10x2 1/2
LUS24 *		•
LUS24-2 *				•
LUS26 *		•
LUS26-2 *				•
LUS28 *		•
LUS28-2 *				•
LUS210 *		•
LUS210-2 *				•
MST27 *			•
MST37 *			•
MST48			•
MST60			•
MST72			•
MSTA12 *	•
MSTA15 *	•
MSTA18 *	•
MSTA21 *	•
MSTA24 *	•
MSTA30 *	•
MSTA36 *	•
MSTA49 *	•
MSTA9 *	•
MSTC28 *	•
MSTC40 *	•
MSTC52 *	•
MSTC66 *	•
MSTC78 *	•
MSTI26 *	•
MSTI36 *	•
MSTI48 *	•
MSTI60 *	•
MSTI72 *	•
MTS12 *	•
MTS16 *	•
MTS20 *	•
Model No.	SD9		SD10
Model No.	#9x1 1/2	#9x2 1/2	#10x1 1/2	#10x2 1/2
NS1 not load rated	•
NS2 not load rated	•
PBS44A			•
PC44 *			•
PC44-16 *			•
PF24 *		•
PF24A *		•
PFD24 *		•
PFDS24 *		•
PF26 *		•
PF26A *		•
PFD26 *		•
PFD26L *		•
PFDS26 *		•
PSPN58Z not load rated			•
RR *	•
RSP4 *	•
ST9 *			•
ST12 *			•
ST18 *			•
ST22 *			•
ST292 *			•
ST2115 *			•
ST2122 *			•
ST2215 *			•
ST6215 *			•
ST6224 *			•
ST6236 *			•
ST9			•
THASR/L29	•	•
THASR/L29-2	•	•
THASR/L422		•
TP15 not load rated	•
TP311 not load rated	•
TP35 not load rated	•
TP37 not load rated	•
TP39 not load rated	•
TP411 not load rated	•
TP45 not load rated	•
TP47 not load rated	•
TP57 not load rated	•
TP49 not load rated	•
TPA37 not load rated	•
TPA39 not load rated	•
TPA57 not load rated	•
VTCR			•
Model No.	SD9		SD10
Model No.	#9x1 1/2	#9x2 1/2	#10x1 1/2	#10x2 1/2

Since testing of the SD screw is ongoing, Simpson Strong-Tie will continue to add newly approved connectors to this list.

					Legacy Reports
	IAPMO ES ER	ICC-ES ESR	CITY OF LOS ANGELES	STATE OF FLORIDA	ICC-ES NER	ICC-ES ER	ICC-ES ES
SD10112		ESR-3046 / ESR-3096	RR25907 / RR25910	FL14101
SD10212		ESR-3046 / ESR-3096	RR25907 / RR25910	FL14101
SD9112		ESR-3046 / ESR-3096	RR25907 / RR25910	FL14101
SD9212		ESR-3046 / ESR-3096	RR25907 / RR25910	FL14101

	ORTHOGRAPHIC	PERSPECTIVE
SD10112	None for this model	None for this model
SD10212	None for this model	None for this model
SD9112	None for this model	None for this model
SD9212	None for this model	None for this model