










🔩 Screw it right, screw it strong — the pro’s choice for flawless builds!
The Simpson Strong-Tie SD9212R100 #9x2.5 Conn Screw is a premium industrial-grade fastener designed for superior strength and ease of use. Featuring a double square drive and sharp point, it eliminates the need for pilot holes, speeding up installation. With a corrosion-resistant galvanized and black oxide finish, these fully threaded stainless steel screws deliver reliable, long-lasting performance in pressure-treated decking and joist hanger applications. Available in a convenient 100-piece pack, it’s the trusted choice for professionals demanding durability and efficiency.





| ASIN | B0188YLOVS |
| ASIN | B0188YLOVS |
| Brand | Simpson Strong-Tie |
| Color | Silver |
| Compatible Groove Diameter | 1.13 Inches |
| Customer Reviews | 4.8 4.8 out of 5 stars (232) |
| Customer reviews | 4.8 4.8 out of 5 stars (232) |
| Date First Available | 14 June 2016 |
| Department | Unisex-Adult |
| Drive System | Double Square |
| Exterior Finish | Black Oxide |
| Fastener Size | #8-32 x 2.5 inches |
| Fastener Type | Deck Screws |
| Finish Types | Galvanized and Black Oxide |
| Global Trade Identification Number | 00707392884446 |
| Grade Rating | Industrial |
| Head Type | Bugle |
| Included Components | screw-in-hooks |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 0.37 Inches |
| Item Dimensions | 9 x 9 x 66 millimeters |
| Item Type Name | #9x2.5 Conn Screw |
| Item Weight | 68 g |
| Item model number | SD9212R100 |
| Manufacturer | SIMPSON STRONG TIE |
| Manufacturer | SIMPSON STRONG TIE |
| Material Type | Copper |
| Maximum Shear Strength | 37 MPa (5326 psi) |
| Metal Type | Stainless Steel |
| Model | SD9212R100 |
| Number of Pieces | 100 |
| Part Number | SD9212R100 |
| Product Dimensions | 0.94 x 0.94 x 6.65 cm; 68.04 g |
| Screw Head Style | Bugle |
| Screw Point Style | Sharp Point |
| Set Name | Set of 100 |
| Set Screw Thread Type | UNC or UNF |
| Size Name | Pack of 1 |
| Thread Class | standard |
| Thread Coverage | Fully Threaded |
| Thread Size | 1 1/8 |
| Thread Style | Right Hand |
| Thread Type | UN |
| UPC | 707392884446 |
| Unit Count | 1 Count |
P**G
Easier than nailing joist hangers.
K**E
Works perfect with strong tie joist hangers. Used 6+ boxes and not one single screw stripped. Sharp top eliminated need for pilot holes and much prefer these over nails. Deck feels solid and made a not so fun job go smoother. A very dependable product and will never consider anything else for pressure treated decking.
Q**V
Good quality and meet my requirements for my 2x2"x6" beam holders.
D**S
These are the correct screws for the Simpson Sterong-Tie joist hangers. They work great and make for a very strong support for joists.
J**T
I was tired of buying different brands of torx and phillips deck/utility screws only to have them strip heads. Once I used these with a bolt head (using my DeWalt impact driver I am spoiled for life. These cost more but well worth the $$$ for the quality, strength, and ease of installation.
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