12221 GRK SCREW RSS 5/16X3-1/8IN 100 pack

12221 GRK SCREW RSS 5/16X3-1/8IN 100 pack

Marsoni

M251S

$66.00

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

12221 GRK SCREW RSS 5/16X3-1/8IN 100 packOverview GRK No. 20 Structural Screws 12221 are designed for heavy duty structural fastening applications in both interior and exterior environments. Model Number 12221 Brand GRK Fasteners Size No. 20 x 3 1 8 in. L Diameter 5 16 in. Weight 7. 55 lb (100 pack) Material Specially Hardened Steel Finish Climacoat Package Quantity 100 pieces Drive Style Star Head Type Washer Head Technical Features W Cut thread design provides aggressive cutting action for

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My dog is a mix of a Husky and a Pit Bull. She needs to chew toys, but they usually don't last long. This one seems to be an exception. She took to it right away, and it's still in one piece pi. I assume that the bacon flavor or scent is what keeps her coming back to this toy. This one seems to be her favorite so far.

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Reviewed in the United States on January 13, 2026

Verified Purchase

Marcus Schilreff

Alexandria, US

★★★★★ 5

Tough chewer for sure

My dog destroys toys. These are amazing, she chewys on them tell she's a slobbery mess. And they are holding strong. Glad a found these!

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Reviewed in the United States on February 10, 2026

Verified Purchase

Carol Roeder

Battle Creek, US

★★★★★ 5

Fantastic toy for aggressive chewiers!

I have bought two of these for my granddaughters three dogs and they love them! In fact, I only bought one to see if they would, and all 3 played with it! One is a 5 year old pit mix, one is a 9 mo. lab mix, and ine is a 10 year old shepherd mix! Miss Lab goes through toys like melting ice, so they reall have to be well made. Not even Kong toys have made it with her! All three dogs have made it squeak, which we didn't know it did! If you have an aggressive chewier, this is the toy you need to put in the #1 spot on your list to buy!

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Reviewed in the United States on January 28, 2026