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🔧 Power your projects with SPAX — where strength meets sleek precision!
SPAX 1/4" x 3-1/2" PowerLag Structural Wood Lag Screws combine heat-treated Grade 5 alloy steel with patented thread technology and a low-profile T-Star washer head for superior strength, faster installation, and corrosion resistance. ICC-ES certified for structural wood applications, these screws come in a 50-piece set with an included Torx bit, engineered for professionals demanding durability and efficiency in exterior and treated lumber projects.
| ASIN | B018JQFDJE |
| Best Sellers Rank | #12,459 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #286 in Wood Screws |
| Brand | SPAX |
| Color | Black |
| Compatible Groove Diameter | 0.25 inches |
| Customer Reviews | 4.8 out of 5 stars 614 Reviews |
| Drive System | Torx |
| Exterior Finish | Black Oxide |
| Fastener Size | 3-1/2" |
| Fastener Type | Wood Screws |
| Finish Types | Black Oxide |
| Global Trade Identification Number | 00712216019195 |
| Grade Rating | grade_ 5 |
| Head Style | Washer Head |
| Head Type | Truss |
| Included Components | Building Materials & Ladders; Decking & Fencing; lag-screws |
| Item Diameter | 0.25 inches |
| Item Dimensions | 3.5 x 0.25 x 0.25 inches |
| Item Type Name | lag-screws |
| Item Weight | 1.8 pounds |
| Item dimensions L x W x H | 3.5 x 0.25 x 0.25 inches |
| Manufacturer | Altenloh, Brink & Co |
| Material | Carbon Steel |
| Material Type | Carbon Steel |
| Maximum Shear Strength | High (structural wood applications, grade 5) |
| Metal Type | Alloy Steel |
| Model | 4581820000000 |
| Number Of Items | 50 |
| Number of Pieces | 50 |
| Outside Diameter | 0.25 inches |
| Part Number | CECOMINOD068517 |
| Point Style | Self-Tapping |
| Screw Head Style | Washer Head |
| Screw Point Style | Self-Tapping |
| Set Name | 50-Piece Set |
| Set Screw Thread Type | UNC |
| Size Name | 1/4 x 3-1/2" |
| Thread Class | 3A |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/4 x 3" |
| Thread Style | Right Hand |
| Thread Type | Un |
| UPC | 712216019195 |
| Unit Count | 1 Count |
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