SPAX Multi-Material Construction Screw (T-Star Plus, HCR-X) Review (2026)
By The DIYPicks Team · Updated July 2026
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- Framing
- Exterior
- Multi material
- Decking
A fast-driving, exterior-rated multi-material screw that shines when a project mixes wood, thin steel, and plastic.
Pros
- MultiCut self-drilling point sinks without pre-drilling even in hardwood and MDF
- HCR-X coating is rated for exterior and treated lumber, unlike interior builder screws
- German-engineered T-Star Plus recess grips hard and rarely cams out under a drill
Cons
- Small 1 lb boxes get expensive per pound versus bulk deck-screw pails
- HCR-X is coated steel, not stainless, so it is not a marine or ground-contact fastener
- Yellow-zinc and coated finishes are utilitarian and do not color-match composite decking
Specifications
| Drive | T-Star Plus (Torx) |
|---|---|
| Coating | HCR-X (exterior corrosion-resistant) |
| Length range | 1 in - 6 in |
| Head | Flat / countersink with serrations |
| Material | Hardened steel |
| Thread | MultiCut point + partial thread (no pre-drill) |
| Materials | Wood, light-gauge steel (24 ga), concrete, plastics |
| Best use | Multi-material and exterior fastening |