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🔧 Screw in Strength, Screw out Doubt — Build Like a Pro!
The Simpson Strong-Tie SD9112R100 is a premium #9 x 1-1/2 inch structural connector screw designed to replace nails in Simpson Strong-Tie connectors. Featuring a mechanically galvanized Class 55 coating for superior corrosion resistance, a 1/4 inch hex head with integrated washer for quick identification, and heat-treated steel for enhanced strength and ductility, this 100-pack delivers unmatched load capacity and durability for both interior and exterior construction projects.








| ASIN | B003YHCLYO |
| Best Sellers Rank | #159,916 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,112 in Wood Screws |
| Brand | Simpson Strong-Tie |
| Color | Galvanized |
| Compatible Groove Diameter | 0.22 inches |
| Customer Reviews | 4.8 out of 5 stars 1,131 Reviews |
| Drive System | External Hex |
| Exterior Finish | Galvanized |
| Fastener Size | #9 |
| Fastener Type | Wood Screws |
| Finish Types | Mechanically Galvanized |
| Global Trade Identification Number | 00707392977001 |
| Head Style | Hex |
| Head Type | Hex Head |
| Included Components | Simpson Structural Screws SD9112R100 No.9 by 1-1/2-Inch Structural-Connector Screw, 100-Pack |
| Item Diameter | 0.19 inches |
| Item Dimensions | 0.37 x 0.37 x 1.62 inches |
| Item Weight | 12.32 ounces |
| Item dimensions L x W x H | 0.37 x 0.37 x 1.62 inches |
| Manufacturer | Simpson Strong-Tie |
| Material | Steel |
| Material Type | Steel |
| Metal Type | Stainless Steel |
| Model | SD9112R100 |
| Number Of Items | 100 |
| Number of Pieces | 100 |
| Outside Diameter | 0.37 inches |
| Part Number | SD9112R100 |
| Point Style | Sharp |
| Screw Head Style | Hex |
| Screw Point Style | Sharp |
| Set Name | Strong-Drive SD Connector Screw #9 x 1-1/2, 100 Piece |
| Set Screw Thread Type | Unified National Coarse (UNC) |
| Size Name | 1 |
| Thread Class | Product-specific (Strong-Drive) |
| Thread Coverage | 1 1/8 |
| Thread Size | 1 1/8 |
| Thread Style | Right Hand |
| Thread Type | Un |
| UPC | 784497810785 783961889937 707392977001 |
| Unit Count | 100 Count |
| Warranty Description | 12 months |
D**T
Strong tight screws
Hanging over 60 4 X4 holders for 4 x 4 beams. This item speeds the work. They even give you the hex head bit to use in the drill. What more can you ask for. Great Product.
J**N
Wood not work without them!
These structural screws are AMAZING! The hex head makes it easy for my driver to keep a good grip on them, and the screw pattern just pulls the screw into even the oldest and hardest wood. Honest! I have never felt anything like it! I am working on a home remodel where the wood has been in place for 40 years, and nails are hard to drive in without a gun. These go in like butter. Never thought I would fall in love with the design of a screw!! Better still, because they are structural (and can take shear force much better than other screws) they make installing metal construction connectors a piece of cake! No more bruised thumbs from missing the nail for me, or hard pounding in tight places!!
J**E
Connect vertical posts to horizontal pieces
Must have for fence setup
A**R
Job complete
Great for any build project.
A**Y
Great value
Durable quality and great value
N**A
Name speaks for themselves
These fasteners are amazing. If you’re doing any kind of framing, you’ll know Simpson is the standard. May be more expensive than others, but you get the strength and quality with this brand. They drive easy and hold tough. Only brand I’ll buy.
Z**.
Excellent!
I’ve got a La-Z-Boy rocker recliner that I busted the springs on and snapped a few of the screws and decided on whether or not to nut and bolt the replacement springs back on but this was a more feasible option. I purchased these back in August of 2022 it is currently March of 2024 I have rocked this chair daily and am still rocking it today and plan on rocking it for years to come hopefully. Or at least till the fabric wears out cause Lord knows the screws will out last that! The failed factory screws caused the springs to snap when I replaced with these I have not had any issues so I highly recommend these for any structural needs.
E**E
High Strength and high-grade
The screws were high quality.
K**N
Excellent product, but expensive and takes ages to receive it
Excellent product, but it takes ages to receive it and is very expensive
M**8
Just what I needed
Great quality and just what you need when building a deck.
T**D
Good quality
As described
A**N
Bonne qualité
Utilisé pour des équerres pour poutres. Parfait. Bonne dimension.
P**L
Great Purchase!
Great screws. Fast and easy to install hangers. Already went through 4 boxes. They don't like knots but I don't know of any fastners that does. Recommended for sure.
Trustpilot
2 weeks ago
3 days ago