





🛠️ Fasten smarter, not harder — the screw that works as fast as you do!
The FastenMaster OMG-FMHLGM412-50 is a 4-1/2 inch, 50-count wood screw engineered for high-performance wood-to-wood fastening. Featuring patented Spider Drive technology to prevent cam-out, aggressive threading for no-predrill installation, and guaranteed lifetime corrosion resistance, it outperforms standard 3/8 inch lag screws. Ideal for deck framing, stair stringers, and cabinetry, this American-made fastener includes a free Spider Driver bit for precision and ease.
| Material | Steel |
| Head Style | Flat |
| Exterior Finish | Plain |
| Thread Size | 4-1/2" |
| Point Style | Spider |
| Metal Type | Alloy Steel |
| Brand | FASTENMASTER |
| Color | Black |
| Head Type | Flat |
| Item Weight | 1 Pounds |
| Thread Type | Unc |
| Thread Coverage | Partially Threaded |
| Fastener Type | Wood Screws |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Thread Style | Right Hand |
| Fastener Size | 1/2 in x 4 1/2 in |
| Size | 4-1/2 Inch |
| Item Diameter | 0.5 Inches |
| Compatible groove diameter | 0.5 Inches |
| Number of Pieces | 50 |
| UPC | 608309410584 |
| Global Trade Identification Number | 00608309410584 |
| Manufacturer | FastenMaster |
| Part Number | OMG - FMHLGM412-50 |
| Item Weight | 1 pounds |
| Item model number | OMG - FMHLGM412-50 |
| Is Discontinued By Manufacturer | No |
| Finish | Zinc Plated |
| Shape | Cylindrical With Helical Thread |
| Item Package Quantity | 1 |
| Cutting Diameter | 0.5 Inches |
| Measurement System | Imperial |
| Usage | wood |
| Included Components | OMG - FMHLGM412-50 |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | HeadLOK is fully guaranteed for the life of the project against rusting or corrosion. Fasteners are not intended for use within 1,000 feet of saltwater applications. |
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