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Strong-Drive® SD CONNECTOR SS Screw 

Strong-Drive® SD CONNECTOR SS Screw

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The stainless-steel Strong-Drive SD Connector SS screw (SD SS) is specifically designed to replace nails in certain Simpson Strong-Tie® stainless-steel connectors. The load-rated SD SS 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 SD SS screw exceed those of typical 10d common nails. In addition, the Type 316 stainless steel provides excellent corrosion resistance appropriate for severe-exposure environments.

Key Features

  • Specifically designed to replace nails in certain Simpson Strong-Tie stainless-steel connectors and is the only screw approved for that application. The #9 SD SS screws replace 10d nails.
  • The single-fastener load capacity of the #9 SD SS exceeds the capacity of a 10d common nail.
  • Tested and approved for use in many of our most popular stainless-steel connectors for both interior and exterior applications.
  • Ideal for use in connector applications where more control is desired or using a hammer is inconvenient.
  • 1/4" hex head with 0.37"-dia. integrated washer 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.
  • Hex driver included.

Applications

  • The load-rated SD SS screw has been tested and approved for use in many popular Simpson Strong-Tie stainless-steel connector products. Refer to the Strong-Drive SD Connector SS screw table to see which fasteners are compatible with Simpson Strong-Tie connectors.

Related Literature

Product Information Table

Fastener Production Information and Stuff & Things
New products
Model No. Coating/Material Screw Size Length (in.) Drive Type Head Type Point Type Packaging Qty.
SD9112SSMB Type 316 Stainless Steel #9 1 1/2 1/4 in. Hex Hex Head Sharp Point 3000
SD9112SS-R100 Type 316 Stainless Steel #9 1 1/2 1/4 in. Hex Hex Head Sharp Point 100
SD9112SS-R500 Type 316 Stainless Steel #9 1 1/2 1/4 in. Hex Hex Head Sharp Point 500
SD9212SSMB Type 316 Stainless Steel #9 2 1/2 1/4 in. Hex Hex Head Sharp Point 2000
SD9212SS-R100 Type 316 Stainless Steel #9 2 1/2 1/4 in. Hex Hex Head Sharp Point 100
SD9212SS-R500 Type 316 Stainless Steel #9 2 1/2 1/4 in. Hex Hex Head Sharp Point 500
tables

SD Connector SS Screw — Allowable Shear Loads for Wood Connections

Size (in.) Model No. Thread Length (in.) Reference DFL/SP Allowable Shear Loads (lb.) Reference SPF/HF Allowable Shear Loads (lb.)
Wood Side Plate Thickness (in.) Wood Side Plate Thickness (in.)
15/32 - 1/2 23/32 - 3/4 1 1/2 15/32 - 1/2 21/32 - 3/4 1 1/2
#9 x 1 1/2 SD9112SS 1.0 105 93
#9 x 2 1/2 SD9212SS 1.0 118 133 130 99 94 109
  1. Allowable loads are shown at the wood load duration factor of CD = 1.00. Loads may be increased for load duration per the building code up to a CD = 1.60.
  2. The 15/32" and 23/32" side members must be plywood or OSB with minimum equivalent specific gravities of 0.50 for DFL and SP design values, and 0.42 for SPF and HF design values. See NDS, Table 12.3.3B for specific WSP grades and associated equivalent specific gravities.
  3. Loads are based on connections with main members of DFL/SP or SPF/HF and side members as shown and described in table note 2. Screws shall be installed normal to the surface of the wood members.

SD Connector SS Screw — Allowable Withdrawal Loads — DFL, SP, SPF, HF Lumber

Size (in.) Model No. Thread Length (in.) Head Diameter (in.) Reference Withdrawal Design Value, W (lb. / in.)
DFL and SP Main Member SPF and HF Main Member
#9 x 1 1/2 SD9112SS 1.0 0.37 173 122
#9 x 2 1/2 SD9212SS 173 122
  1. The tabulated reference withdrawal design value, W, is in pounds per inch of the thread penetration into the side grain of the main member.
  2. Tabulated reference withdrawal design value, W, must be multiplied by all applicable adjustment factors from the NDS as referenced in the IBC or IRC.
  3. Thread penetration length is that portion held in the main member, including the screw tip.
  4. For connections with 15/32" thick plywood or OSB side members, reference withdrawal design values, W, must be limited by the head pull-through design value of 130 lb.

SD Connector SS Screw — Allowable Shear Loads — Stainless-Steel Side Plate Plate

Size (in.) Model No. Thread Length (in.) Reference Allowable Shear Loads with Stainless-Steel Side Plates (lb.)
DFL and SP Main Member SPF and HF Main Member
#9 x 1 1/2 SD9112SS 1.0 171 112
#9 x 2 1/2 SD9212SS 200 112
  1. Loads are given for CD = 1.00 and may be increased for load duration per the building code to CD = 1.60.
  2. Stainless-steel side-plate thickness is 33 to 100 mil (20 –12 ga.)

Code Reports & Compliance

Drawings

PDF DWG DXF RFA IFC SAT