Questions and Answers for GRK Fasteners #9 x 2-3/4 in. Star Drive Bugle Head R4 Multi-Purpose Wood Screw (100-Pack)

A:  Hi Leonardo! We typically recommend our RSS screws for structural builds due to the stronger holding power and they were designed for structural builds. Please feel free to call us at (877) 489-2726 or email us at CS@itwbrands.com. There we will gather the necessary specs to recommend the product you will need.

A:  Hi, I'm Andrew from GRK. The GRK R4 Multi-Purpose screws can be used in this specified application. Please ensure the appropriate size and length of the R4 screw.

A:  Hello, I'm Andrew from GRK. The GRK R4 multi-purpose screws can be used with fiber cement boards.

A:  Label reads: "Made in Taiwan"

A:  Hi, this is Andrew from GRK. We recommend contacting a local, licensed engineer to determine the appropriate product for your application.

A:  Hi, I'm Andrew from GRK. We would not recommend the use of washers with the R4 fasteners. Although, we do offer fasteners that are designed with a washer styled head that might be suitable for your application. Please refer to the GRK RSS product line for further details.

A:  Hello, We offer the #12 x 6-3/8" in a 50pk and a 1,000pk. For other questions please reach us at (877) 489-2726 or email us at CS@itwbrands.com.

A:  I'm not sure. They for outdoor. I've not had any rust issues with them.They are easy to use.

A:  Hello, I'm Andrew from GRK. Yes, you can use the GRK R4 Multi-Purpose screws in pressure treated lumber.

A:  Hello, this is Andrew with GRK. To find these values, refer to ICC Report # ESR-3201. You can access the report documentation on our website under the "Code Approvals" section in the "Support" tab, or on the ICC-ES website.