55778 Caliburn Concrete Screw 400pk 19/64

55778 Caliburn Concrete Screw 400pk 19/64" x 3-1/2"

Marsoni

M251S

$315.50

Get it in 3 business days with 1 day shipping. Friday, May 29

55778 Caliburn Concrete Screw 400pk 19/64" x 3-1/2"Overview The GRK Caliburn Concrete Screw 400 Pack (55778) is designed for hardware and tool applications requiring reliable fastening into concrete and similar substrates. Manufactured by GRK Fasteners, this bulk pack provides 400 professionally engineered concrete screws in a 19 64" x 3 1 2" dimension, suited for high volume job site use. Technical Specifications MPN 55778 Brand GRK Fasteners Screw Diameter 19 64" Screw Length 3 1 2" Pack Quantity

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So it is rare that I post about a product the same day that I got it but this USB-C hub did exactly what I wanted it to do! A little background, I recently got a pair of Viture XR Pro glasses and I am using them with a Samsung Galaxy S23 5G which has the benefit of Samsung DeX. The goal was to be able to use USB-A dongles for wireless keyboard and mouse in addition to charging my phone with a power delivery port and using my glasses. Long story short, it works flawlessly and I still have 1 USB-A and 3 USB-C ports to use!

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Reviewed in the United States on March 20, 2026

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Merle C. Deardorff

Boise, US

★★★★★ 5

It Works for what I need.

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Reviewed in the United States on April 30, 2026

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★★★★★ 4

Works well. Compact.

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Reviewed in the United States on February 14, 2026

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Port Orchard, US

★★★★★ 5

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Reviewed in the United States on April 29, 2026