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Stainless Steel
ExteriorStainless Steel
T-STAR PLUS FLAT HEAD 304 STAINLESS STEEL
SPAX® T-STARplus® Flat Head 304 Stainless Steel screws are the ideal multi-purpose decking and construction fastener to offer corrosion resistance for wood decking, railing, fencing, and other outdoor wood projects near fresh water to prevent staining. When premium corrosion resistance is desired, SPAX 304 stainless steel is the best exterior screw option. T-STARplus® drive provides superior bit engagement over Phillips and square drive screws.
Available in: #10 and #9 diameters
Purchase Options:
Material & Coating
304 stainless steel wire is code compliant for use in ground contact pressure treated and fire-retardant lumber, for exterior and coastal general construction applications (e.g., AWPA UC1-UC4B, UCFA, and UCFB).
Features
- IRC / IBC Code Compliant DrJ TER No. 2010-02 Construction Screw Properties
- Serrated threads require no pre-drilling and reduce driving torque to prolong the battery life of power tools
- Ideal for use in cedar and redwood applications to prevent possible staining of the wood
- Unique 4CUT™ point prevents splitting of wood
- T-STARplus® drive provides superior bit engagement
SPAX ENGINEERED FASTENERS ARE THE MOST ADVANCED FASTENER PRODUCT ON THE MARKET
Typical Applications
- 2-by framing connections - coastal environment applications
- Deck board finishing installation, especially cedar and redwood
- Coastal decking or boardwalks
- Exterior fencing
- Outdoor furniture
Downloads
Application Guides
Reference Lateral Shear Values
Product Submittals
CAD & Dimensional Drawings
Download All#8 Flat Head T-STAR Plus and UNIDRIVE
#10 Flat Head T-STAR Plus and UNIDRIVE
Design Values & Loads
Southern Pine(SG=.55)
| Diameter | #9 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 190 | 190 |
| Head Pull-Through WH (lbs.) | 168 | 168 |
Douglas Fir(SG=.50)
| Diameter | #9 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 146 | 176 |
| Head Pull-Through WH (lbs.) | 143 | 143 |
Hem Fir & Spruce-Pine-Fir(SG=.42)
| Diameter | #9 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 132 | 144 |
| Head Pull-Through WH (lbs.) | 118 | 118 |
Plywood 15/32"(SG=.39)
| Diameter | #9 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 51 | 90 |
| Head Pull-Through WH (lbs.) | 78 | 78 |
Plywood 19/32"(SG=.39)
| Diameter | #9 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 92 | 92 |
| Head Pull-Through WH (lbs.) | 130 | 130 |
Plywood 23/32"(SG=.50)
| Diameter | #9 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 186 | 186 |
| Head Pull-Through WH (lbs.) | 145 | 145 |
OSB 15/32"(SG=.50)
| Diameter | #9 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 54 | 54 |
| Head Pull-Through WH (lbs.) | 77 | 77 |
OSB 19/32"(SG=.50)
| Diameter | #9 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 54 | 54 |
| Head Pull-Through WH (lbs.) | 91 | 91 |
OSB 23/32"(SG=.50)
| Diameter | #9 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 66 | 66 |
| Head Pull-Through WH (lbs.) | 103 | 103 |
ALLOWABLE WITHDRAWAL (W) AND HEAD PULL-THROUGH (WH)
- Tabulated withdrawal and head pull-through design values (W) and (WH) are shown at a CD = 1.0. Tabulated withdrawal and head pull-through values shall be adjusted by all applicable adjustment factors per NDS Table 11.3.1.
- Full withdrawal strength is calculated by multiplying the length of thread embedded in the main member by the tabulated reference withdrawal values.
- Head pull-through values for #8 diameter and larger in Southern Pine, Douglas-Fir, Hem-Fir and Spruce-Pine-Fir are minimum 1.5" side member thickness.
- For wood species with an assigned specific gravity between 0.42 and 0.50, use the tabulated values for specific gravity of 0.42. For wood species with an assigned specific gravity between 0.50 and 0.55, use the tabulated values for specific gravity of 0.50. For wood species with an assigned specific gravity greater than or equal to 0.55, use the tabulated values for specific gravity of 0.55.
Featured Applications
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