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SD Strong-Drive Connector SS Screw

Select your Model:

SKU: SD9112SS-R100

AUD$440.00per Carton

Description:

The load‑rated Strong‑Drive® SD Connector SS screw (SD SS) is a Type 316 stainless steel fastener designed, tested and approved for use with certain Simpson Strong‑Tie® stainless steel connectors. Type 316 stainless steel provides excellent protection in severe corrosion environments.

The SD SS screws have a 1/4" (6.35mm) hex head with a large integrated washer, and are stamped with the Simpson Strong‑Tie “≠” logo and fastener size for easy identification after installation.

Model Variants:

SKUDescriptionUnitCarton QTYPrice AUD
#9 1-1/2IN SD CONN. SCREW316SS 100CTCarton10$440.00
#9 2-1/2IN SD CONN. SCREW 316SS 100CTCarton6$348.00

Model No Table:

Specifications - Hand-drive

Model No.

Size

Thread

Point

Material & Finish

Box Qty

Drive Size

PLEASE NOTE: Pre-drilling and countersink may be necessary at ends, butt joints, and on applications where denser material is used. Follow the board manufacturer’s recommendation where applicable. WARNINGS: Always wear PPE during installation. Corrosive environments, exposure to water, salt air, or chemicals (including some wood preservatives) may cause early failure.

SD9112SS-R100

#9 x 38mm

Serrated Threads

Sharp Point

316 Stainless Steel

100

1/4” Hex Head

SD9212SS-R100

#9 x 64mm

100

 

Table 1. Model numbers, markings, dimensions, and basic properties for the SD Connector SS screws

Model No.

Head
Marking
(##)

Screw Length
(mm)

Thread
Length
(mm)

Diameter (mm)

Fastener Strength

Shank

Major

Minor

Bending Yield Strength

(MPa)

Tension

(kN)

Shear

(kN)

SD9112SS

1.5

38

25.4

3.5

4.3

3.0

1070

3.5

2.9

SD9212SS

2.5

64
  1. Fastener length is measured from the underside of the head to the point.
  2. Thread length includes the point.
  3. Bending yield strength testing followed ASTM A F1575 and is based on minor thread diameter.
  4. Characteristic bending yield strength determined following EN14358.
  5. Tension and shear properties are based on 0.5 of the average load for screws tested in tension and shear, respectively. Shear strength is shear through the threads.

 

Table 2.  Characteristic Capacity (Qk) for single SD SS Screws Single Shear Connections (Type 1) – Seasoned Timber for Joint Groups JD4 and JD5 and Wood Structural Panels (WSP) 

Model No.

Screw Length (mm)

Thread
Length (mm)

Characteristic Shear Capacity - JD4 (N)

Characteristic Shear Capacity - JD5 (N)

Timber Side Member Thickness (mm)

Timber Side Member Thickness (mm)

11.9-12.7
(WSP)

18.3-19.1
(WSP)

35

11.9-12.7
(WSP)

18.3-19.1
(WSP)

35

SD9112SS

38

25.4

1525

-

-

1350

-

-

SD9212SS

64

1615

1810

1920

1340

1280

1830
  1. Main and side members shall have densities representative of JD4 and JD5, 550 kg/m3 and 500 kg/m3, respectively.
  2. Tabulated characteristic lateral capacities are for normal duration of load.
  3. Screws shall be installed normal to the surface of the timber member.

 

Table 3.  Characteristic Capacity (Qk) for Single SD SS Screws Single Shear Connection (Type 1) - Steel-to-Timber for Seasoned Timber for Joint Groups JD4 and JD5

Model No.

Screw
Length (mm)

Thread
Length (mm)

Characteristic Shear Strength

1-mm Steel-to-Timber

(N)

JD4

JD5

SD9112SS

38

25.4

1665

1080

SD9212SS

64

1970

1080
  1. The main members shall have densities representative of JD4 and JD5, 550 kg/m3 and 500 kg/m3, respectively.
  2. Tabulated characteristic lateral capacities are for normal duration of load.
  3. Screws shall be installed normal to the surface of the timber member.

 

Table 4.  Characteristic Capacity (Qk) for Single SD SS Screws Withdrawal Connections (Type 2) – Seasoned Timber for Joint Groups JD4 and JD5

Model No.

Screw
Length (mm)

Thread
Length (mm)

Characteristic Withdrawal Value
(N/mm)

JD4

JD5

SD9112SS

38

25.4

110

71

SD9212SS

64
  1. The main members shall have densities representative of JD4 and JD5, 550 kg/m3 and 500 kg/m3, respectively.
  2. Tabulated characteristic withdrawal capacities are for normal duration of load.
  3. Tabulated characteristic withdrawal values are in N/mm of thread length into the main member.

 

Table 5. Minimum recommended spacing for connections with SD CONNECTOR SS screws

Condition

Minimum Distance or Spacing
(mm)

Edge Distance

Perpendicular to grain loading

25

Parallel to grain loading

13

End Distance

Perpendicular to grain loading

50

Parallel to grain loading

50

Spacing

Between fasteners in a row

50

Between non-staggered rows

13

Between staggered rows

13
  1. Edge distances, end distances, and spacing of screws shall be sufficient to prevent splitting of the timber or as required in this table; or when applicable as recommended by the structural composite lumber manufacturer, whichever is more restrictive.