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Description
Simpson Strong-Tie S12125HDUM Self-Drilling Hex-Washer Head Screw - 305 Stainless Steel (1000 Pack)Simpson Strong Tie S12125HDUM Description The Simpson Self Drilling Hex Washer Head Screw features an indented hex washer head and tapping screw threads. Use this stainless steel screw for softer materials such as aluminum and fiberglass (not steel) where superior corrosion resistance is desired. Simpson Strong Tie S12125HDUM Includes (1000) Self Drilling Hex Washer Head Screw Simpson Strong Tie S12125HDUM Features Indented hex washer head Tapping
Simpson Strong-Tie S12125HDUM Description
The Simpson Self-Drilling Hex-Washer Head Screw features an indented hex-washer head and tapping screw threads. Use this stainless-steel screw for softer materials such as aluminum and fiberglass (not steel) where superior corrosion resistance is desired.
Simpson Strong-Tie S12125HDUM Includes
- (1000) Self-Drilling Hex-Washer Head Screw
Simpson Strong-Tie S12125HDUM Features
- Indented hex-washer head
- Tapping screw thread
- #3 drill point
- Made from 305 stainless steel for corrosion resistance
Simpson Strong-Tie S12125HDUM Applications
- Fastening aluminum and fiberglass materials
- Ideal for environments requiring corrosion resistance
Simpson Strong-Tie S12125HDUM Specifications
| Diameter | #12 |
| Length | 1-1/4 in. |
| Material | 305 Stainless Steel |
| Drive Type | 5/16 in. Hex |
| Head Type | Hex Washer Head |
| Thread Type | Tapping Threads |
| TPI | 14 |
| Point Type | Drill Point |
| Packaging Quantity | 1000 |
NOTE: Types 316 and 305 stainless steel provide superior corrosion resistance and are suitable for softer materials such as aluminum and fiberglass (not steel).
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
The Ultimate Command Center for My Workbench
Size: 6.5 FT, Color: Black
I finally ditched the old, flimsy power strip on my workbench and mounted this DEPOW 28-in-1 Surge Protector on the wall behind it. Honestly? It was the best move I’ve made for my workspace in years.
Here is why this thing is a beast for anyone with a hobby or work bench:
Insane Outlet Capacity: With 22 AC outlets, I no longer have to play "musical chairs" with my power tools. I can keep my chargers and bench tools plugged in simultaneously without running out of room.
The Modern Tech Solution: It feels like every new gadget uses USB-A or USB-C these days. Having 6 dedicated USB ports (including 3 USB-C) built right in means I can charge my phone, tablets, and lights without using up my precious AC space with bulky "bricks."
Pro Mounting & Design: Mounting it on the wall cleared up so much clutter on the bench surface. The 6.5ft flat plug cord made it easy to reach the wall outlet even with the bench pushed flush against it.
Peace of Mind: With 2100 Joules of surge protection, I don’t have to worry about my expensive electronics or power tools getting fried during a storm.
The Bottom Line: This isn't just an extension cord; it’s a full-on power hub. If you have a mix of high-power tools and modern USB-charged gear, "this baby" truly does it all. Highly recommended for gamers, DIYers, or anyone with a home office!
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Reviewed in the United States on April 6, 2026
★★★★★ 4
SO far so good, no issues yet
Size: 6.5 FT, Color: Black
Hate it's made out of cheap hardened plastic
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Fantastic power strip with tons of outlets!
Size: 6.5 FT, Color: Black
This surge protector power strip is amazing! With 22 AC outlets and 6 USB ports including USB-C, it's incredibly versatile for all my devices. The flat plug makes it easy to fit behind furniture and the 6.5-foot cord gives plenty of reach. The 1875W capacity handles everything with ease!
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Reviewed in the United States on March 27, 2026
★★★★★ 5
22 outlets. Super easy to use. Extremely happy with purchase.
Size: 6.5 FT, Color: Black
22 outlets!
I had 2 battery backups but, after 5 years, the battery died and could not be easily replaced.
I moved all my plugs to one, easy to use strip.
Lots of room for block plugs. Generous room between outlets.
3 USB C and 3 USB A outlets mean I can plug in chargers for my devices.
Extremely happy with my purchase. Great company. Lots of choices from DEPOW but this one allowed me to plug in all my block plugs without covering other plugs.
Great color. Extremely well made.
Will purchase again.
Generous 6.5 foot cord. My others had short 3 foot cords which barely reached.
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Reviewed in the United States on November 12, 2025
★★★★★ 5
Good fit and nice sharp holesaw included
The hole made by the included holesaw was the perfect size for the insert. They work well and cosmetically look much better than a raw hole in the wood. I tried the cable wrap and inserter and both make the job of wrapping and securing the cables much easier. Overall a good product and a good value.
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Reviewed in the United States on January 17, 2025
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