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🔧 Secure your build with strength and style — don’t settle for less!
The Simpson Strong-Tie THD50300H is a 1/2 inch by 3 inch heavy-duty screw anchor designed for concrete and masonry. Featuring a proprietary thread design for optimal load transfer, a corrosion-resistant zinc plating, and easy installation with standard tools, it delivers reliable performance for professional-grade structural fastening. Trusted by industry leaders, it’s engineered to secure your projects with unmatched strength and durability.
| Material | Carbon Steel |
| Head Style | Flanged Hex |
| Exterior Finish | Zinc |
| Thread Size | 1/2" |
| Point Style | Flat Point |
| Metal Type | Carbon Steel |
| Brand | Simpson Strong-Tie |
| Head Type | Hex |
| Thread Type | Right Hand (Proprietary Profile) |
| Thread Coverage | Partially Threaded |
| Fastener Type | Wood Screws |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Thread Style | partially threaded |
| Thread Class | Standard |
| Fastener Size | 1/2 in x 3 in |
| Size | 3 inches |
| Item Diameter | 0.5 Inches |
| Compatible groove diameter | 0.5 Inches |
| UPC | 707392409717 |
| Global Trade Identification Number | 00707392409717 |
| Manufacturer | Simpson Strong-Tie |
| Part Number | THD50300H |
| Item Weight | 6.03 pounds |
| Item model number | THD50300H |
| Is Discontinued By Manufacturer | No |
| Style | Zinc Plated |
| Finish | Zinc Plated |
| Shape | Cylindrical |
| Item Package Quantity | 1 |
| Cutting Diameter | 0.5 Inches |
| Measurement System | Imperial |
| Certification | ANSI |
| Usage | Concrete |
| Batteries Included? | No |
| Batteries Required? | No |
M**4
So far holding up great! Hope to get several winters out of them
Used so far for a full winter in helping hold down pool tarp. Starting on second winter. So far holding up great!Hope to get several winters out of them.
T**R
Worth the extra cost!
I am completely spoiled now, well worth the extra money. We won't use anything else
J**.
Same as Hilti
Works great, can remove and reuse several times.
Trustpilot
2 weeks ago
1 month ago