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Multi-Material
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T-STAR PLUS WAFER HEAD HCR-X™
SPAX® T-STARplus® Wafer Head fasteners with HCR-X™ coating are designed for use in multiple material connections. They are designed with a low profile large diameter wafer head for applications requiring additional surface area under the head.
Available in: #10 and #8 diameters
Purchase Options:
Material & Coating
Cold-rolled carbon steel wire, heat treated for strength and durability and plated with a HCR-X™ finish to prevent red rust. HCR-X™ is tested and recognized for use in ground contact pressure treated lumber for exterior, freshwater general construction applications (e.g., AWPA UC1-UC4A, UCFA). SPAX recommends stainless steel for cedar and redwood attachment applications.
Features
The T-STARplus® Wafer Head screw features a large diameter head for superior pull-down force.
- IRC / IBC Code Compliant DrJ TER No. 2010-02 Construction Screw Properties
- Heat treated for strength and durability
- Serrated threads reduce driving torque to prolong power tool battery life
- Unique 4CUT™ Point prevents splitting and requires no pre-drilling in wood
- Superior bit fit to eliminate camming out
Whether you’re working with wood, concrete, masonry, sheet metal, plastic, or treated lumber, use SPAX Multi-Material Construction Screws.
SPAX ENGINEERED FASTENERS ARE THE MOST ADVANCED FASTENER PRODUCT ON THE MARKET
Typical Applications
- Outdoor furniture
- Outdoor play structures
- Window installation
Downloads
Product Brochures
Application Guides
Product Submittals
Reference Lateral Shear Values
CAD & Dimensional Drawings
Download All#8 Wafer Head T-STAR Plus and Cross Recess
Design Values & Loads
Southern Pine(SG=.55)
| Diameter | #8 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 51 | 190 |
| Head Pull-Through WH (lbs.) | 146 | 461 |
Douglas Fir(SG=.50)
| Diameter | #8 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 133 | 176 |
| Head Pull-Through WH (lbs.) | 297 | 387 |
Plywood 15/32"(SG=.39)
| Diameter | #8 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 51 | 90 |
| Head Pull-Through WH (lbs.) | 146 | 183 |
Plywood 19/32"(SG=.39)
| Diameter | #8 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 83 | 92 |
| Head Pull-Through WH (lbs.) | 190 | 246 |
Plywood 23/32"(SG=.50)
| Diameter | #8 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 162 | 186 |
| Head Pull-Through WH (lbs.) | 319 | 322 |
OSB 15/32"(SG=.50)
| Diameter | #8 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 36 | 54 |
| Head Pull-Through WH (lbs.) | 86 | 87 |
OSB 19/32"(SG=.50)
| Diameter | #8 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 48 | 54 |
| Head Pull-Through WH (lbs.) | 110 | 126 |
OSB 23/32"(SG=.50)
| Diameter | #8 | #10 |
|---|---|---|
| Withdrawal W (lbs./inch) | 52 | 66 |
| Head Pull-Through WH (lbs.) | 131 | 131 |
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.
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