
2187-547 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $14.99 | Condition is New, Cobra 621j Cobratap Flat Head Concrete Screws, 3/16" X 1-3/4", shipping cost = $11.35 | 99.8% |
![]() | $37.20 | Condition is New, 100x CobraTap 2187-547 Concrete Screws 3/16"x 1-1/4" Bit+Driver -m5s3 C288 nn, FREE SHIPPING | 96.8% |

Introducing the Cobra Tap 2187-547 100x Concrete Screws, a high-performance solution for fastening through concrete and masonry surfaces. These 3/16 inch threaded screws, also known as M5x30 screws, offer superior holding power and are ideal for various applications, including construction, home improvement projects, and industrial use.
Each screw in this pack features a tapered thread design, which facilitates easy and efficient drilling into concrete. This design allows the screw to create its own thread as it is driven in, eliminating the need for expensive and time-consuming threaded inserts. The screws also come with a self-drilling point, which makes them suitable for drilling into concrete up to 2 inches thick without the need for pre-drilling.
The Cobra Tap 2187-547 Concrete Screws have a length of 1-1/4 inches, providing ample holding power for most applications. They are made of premium-quality, corrosion-resistant steel, ensuring their durability and longevity, even in harsh environments.
This pack includes 100 screws, offering excellent value for your investment. The screws are supplied with a 1-1/4 inch bit driver, which is specifically designed for use with these screws. The driver features a magnetic tip, ensuring that the screws are securely held in place during the driving process, ensuring accurate and efficient installation.
In summary, the Cobra Tap 2187-547 100x Concrete Screws are an excellent choice for anyone looking for a reliable, high-performance solution for fastening through concrete and masonry surfaces. Their tapered thread design, self-drilling point, and corrosion-resistant construction make them a versatile and durable option for various applications, while the included bit driver ensures easy and efficient installation.
A Detailed Analysis of the COBRA TAP 2187-547 100x Concrete Screws: Pros, Cons, and Recommendation
The COBRA TAP 2187-547 100x Concrete Screws are designed for fastening into concrete surfaces using a 1-1/4 inch bit driver and an M5x3 tap. In this analysis, we'll discuss the key advantages and disadvantages of these screws, followed by a recommendation.
Pros:1. High tensile strength: These screws are capable of supporting significant loads due to their high tensile strength.
2. Self-tapping feature: The screws' self-tapping design allows for easy installation into concrete without the need for pre-drilling.
3. Corrosion resistance: The zinc-coated finish on these screws provides protection against rust and corrosion, making them ideal for outdoor applications.
4. Versatile: These screws can be used in various applications, such as decking, concrete formwork, and mounting structures.
5. Efficient: The use of a 1-1/4 inch bit driver and M5x3 tap makes for faster installation compared to traditional methods.
Cons:1. Limited length options: The COBRA TAP 2187-547 100x Concrete Screws come in a limited range of lengths, which may not be suitable for all applications.
2. Higher cost: Compared to traditional concrete fasteners, these self-tapping screws can be more expensive.
3. Special installation tools required: To install these screws, you will need a 1-1/4 inch bit driver and an M5x3 tap, which may not be included in the package.
Recommendation:The COBRA TAP 2187-547 100x Concrete Screws offer numerous advantages, including their high tensile strength, self-tapping design, and corrosion resistance. However, their limited length options and higher cost may be disadvantages for some users. Based on the analysis, these screws are recommended for projects that require fast and efficient installation of concrete fasteners, particularly in applications where corrosion resistance is a priority. If you have a larger budget and need a wider range of length options, consider exploring other concrete screw options available in the market.
Details:
Condition is new. Dispatched with standard shipping. 100x Cobratap 2187-547 concrete screws 3/16 x 1-1/4 bit driver M5S3mm nn.
specifications yofastener:
- brand: Cobratap
- mpn: 2187-547
- item thickness: 3/16 In
- shape: Hex
- item length: 1-1/4
- gauge: 3/16
- unit type: Unit
- number in pack: 25
- unit quantity: 100
- finish: Blue
- material: Steel
- end type: Cutter
- type: Concrete Screws
- system of measurement: Inch
- rail height: 1 3/4 In
- upc: 400021875470
returns yofastener:
- method: money back
- policy: returns accepted
- time: 30 days
- paid by: seller
seller yofastener:
- city: niagara falls, new york
- rating: 97.1%
- # reviews: 1825
general yofastener:
- category: Home & Garden > Building Hardware > Nails, Screws > Fasteners
offer yofastener:
- started: april 3, 2025
- sold #: 21
- availability: in stock
- options: ship-to-home
- in stock #: 2
- prices: $14.99–$37.20
- item condition: New
shipping yofastener:
- class: standard
- type: fixed
- service: standard
- transit: 8-14 days
payments yofastener:
- credit card: mastercard
- other
- wallet: paypal

