When you're comparing construction fasteners and anchors, the first decision is what you're fastening into: concrete or wood. The four products here split cleanly along that line. The Simpson Strong-Tie THD501200H is the concrete anchor, while the three Sandbaggy screws are structural timber screws. Listed prices run from USD 39.99 to USD 2,058.21, so the biggest difference is choosing the right material and length before you think about price.
Quick take
If your project is a concrete anchoring job, start with the Simpson Strong-Tie THD501200H. If you're connecting wood members, the three Sandbaggy timber screws are the relevant choices. The two Sandbaggy listings with stated pack sizes include 200 and 1,000 units respectively, while the third Sandbaggy listing is the higher-priced entry. Match the screw length to the thickness of the material stack, and keep the concrete anchor for masonry.
Listed-price comparison
| Product | Listed price | Price bar |
|---|---|---|
| Simpson Strong-Tie THD501200H 1/2 x 12 Concrete Anchor | USD 39.99 | |
| Sandbaggy 10-Inch Structural Timber Screws | USD 176.60 | |
| Sandbaggy 4-Inch Structural Timber Screws | USD 196.31 | |
| Sandbaggy 8-Inch Structural Timber Screws | USD 2,058.21 |
Decision matrix
| If your project needs... | Product to consider |
|---|---|
| A concrete anchor | Simpson Strong-Tie THD501200H 1/2 x 12 |
| Long wood-to-wood connections | Sandbaggy 10-Inch Structural Timber Screws |
| A large run of 4-inch wood connections | Sandbaggy 4-Inch Structural Timber Screws |
| A longer galvanized structural screw | Sandbaggy 8-Inch Structural Timber Screws |
Product notes
10-Inch Sandbaggy Structural Timber Screws
Listed at USD 176.60, this 10-inch Sandbaggy screw has a 200-count pack and is the lower-priced of the two Sandbaggy timber-screw listings with stated pack sizes here. The 10-inch length makes it a candidate for long connections such as rafters, headers, and stair stringers. The design is a countersunk hex-head timber screw with a sharp point and coarse threads, so it is aimed at structural wood applications rather than concrete. The trade-off is length and count: if your framing calls for 4-inch screws, the 10-inch fastener is a different fit, and the 200-count pack is smaller than the 1,000-count 4-inch listing.
4-Inch Sandbaggy Structural Timber Screws
Listed at USD 196.31, this 4-inch Sandbaggy screw comes in a 1,000-count pack and is the higher-priced of the two Sandbaggy timber-screw listings with stated pack sizes. It uses the same countersunk hex-head format and coarse-thread design as the 10-inch version, which makes it a volume-friendly option for roofing, decking, and framing connections that need a shorter screw. The limitation is the price position: at USD 196.31, this listing costs more than the 10-inch Sandbaggy pack, so you are paying for quantity rather than added length. If you need a long structural screw for a thick member, the 4-inch length is not the match.
Sandbaggy Structural Timber Screws (8-Inch Wood Lock Screw)
This Sandbaggy listing is the highest-priced entry at USD 2,058.21. The listed item length is 8 inches, the finish is galvanized, and the drive is hex, and the title positions it as a wood-lock screw for structural timber. Choose it when the job justifies the larger budget and an 8-inch galvanized screw is the right fit. The limitation is the cost and position in this group: it sits well above the listed prices of the other Sandbaggy screws, and the 8-inch length places it between the 4-inch and 10-inch options in this guide.
Simpson Strong-Tie THD501200H 1/2 x 12 Concrete Anchor
At USD 39.99, this is the lowest listed price in the group and the concrete anchor in the set. The model number is THD501200H, the size is 1/2 by 12 inches, and the finish is zinc plated. The listing also describes it as a TITEN-HD heavy-duty screw anchor, which makes it the direct choice when you are anchoring into concrete. The limitation is that it is not a timber screw: if you are fastening wood members together, the Sandbaggy hex-head screws are the ones built for that. The 1/2 x 12 size also makes it a specific-diameter anchor, so it fits projects that call for that particular dimension.
Final recommendation by use case
For concrete anchoring, the Simpson Strong-Tie THD501200H is the product to start with. For long connections in wood, the 10-inch Sandbaggy structural timber screw covers that range. For large runs of 4-inch wood connections, the 4-inch Sandbaggy screw pack is the better match. For a galvanized structural screw in the 8-inch length, the Sandbaggy wood-lock screw is the listed option.
