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๐ง Nail your next project with pro-grade speed and strength!
Bobibbiโs 1/4 x 1-1/4" Flat Head Concrete Screw Anchors come in a 100-piece set, engineered from high-quality carbon steel with a unique diamond tail for rapid drilling. Designed for masonry, block, and brick, these screws offer exceptional corrosion resistance and durability, making them the go-to fastener for professionals and DIYers alike.








| ASIN | B0BJ25FJRJ |
| Best Sellers Rank | #12,920 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #21 in Concrete Screws |
| Brand | Bobibbi |
| Customer Reviews | 4.5 out of 5 stars 1,050 Reviews |
| Drive System | Phillips |
| Exterior Finish | Alloy Steel |
| Fastener Size | 3.2 cm |
| Fastener Type | Screw |
| Finish Types | Powder Coated |
| Head Style | Flat |
| Head Type | Flat |
| Item Diameter | 6.35 millimeters |
| Item Dimensions | 5.59 x 3.46 x 3.46 inches |
| Item dimensions L x W x H | 5.59 x 3.46 x 3.46 inches |
| Manufacturer | Bobibbi |
| Material | Carbon Steel |
| Material Type | Carbon Steel |
| Metal Type | Carbon Steel |
| Model | 1/4 x 1-1/4" Flat Head Concrete Screw |
| Number Of Items | 100 |
| Number of Pieces | 100 |
| Outside Diameter | 0.25 inches |
| Part Number | 1/4 x 1-1/4" Flat Head Concrete Screw |
| Point Style | Diamond Point |
| Screw Head Style | Flat |
| Screw Point Style | Diamond Point |
| Set Name | Professional Concrete Screw Set (100 Piece) |
| Set Screw Thread Type | UNC |
| Size Name | 1/4 x 1-1/4" |
| Thread Coverage | Fully Threaded |
| Thread Size | 1/4 |
| Thread Style | Right Hand |
| Unit Count | 1 Count |
L**1
They work fine
The concrete screws are fine. The light plastic box broke during shipment but what ever. Drivers fault or the packing in the boubble wrap envolope more at fault. It's not a case made to last, more to just get it too you. The drill bit looked like the one you get with the name brand that has a flat spot on the end to fit into adapters. I tossed it with a pile of bits so I'm not sure if I used the one that came with it. More often I use a different size and / or SDS bit. IMO bitss that come in a box is just an extra in case you forgot to get one, lost, wore out, or broke you others. Who would expect a common hammer drill bit to last 100 holes? Not realistic. Anchoring in concrete no matter the type or brand is a skill. Years ago before cordless took over we would set Tapcons with a corded drill that had a keyed chuck and no clutch. There was about a millisecond between tight, twist your wrist, or broke.
A**R
Hex Head Screws.
Yeah. These screws work well once the hole size is the correct.
M**T
Effective generic screw
Great deal on these concrete screws. Just as good as the name brand, Tapcons. I have these new sizes and colors. Would highly recommend these at a fraction of the cost of the name brand.
F**3
Recommend for most projects
They are decent quality but not TapCon level quality. If you need really heavy duty strength then go with TapCon or equivalent.
D**N
Great product
Very sturdy. Just what I needed.
F**K
Easy to install
Excellent product works great
E**N
Good buy
Bought to add to my tooling collection.
S**S
Very low quality
The bit isn't very good, so I used a smaller better bit for a pilot hole, then used the one that came with the set to get the exact size needed. The next issue, which is the worst part, is the heads twist off really easy on these screws. Stay away from these. I will try another brand. *** UPDATE *** The seller did contact me and gave me a refund. Maybe I got a bad batch, who knows, but proceed with caution. I increased my rating for customer service.
G**P
Screwed nicely!
Excellent hardware!
B**E
Great Value
Works well and priced competitively, significantly less expensive than walk in store option
Trustpilot
3 weeks ago
1 month ago