Questions and Answers for GRK Fasteners #10 x 3-1/8 in. Star Drive Torx Bugle Head R4 Multi-Purpose Wood Screw (210-Pack)

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.

A:  Hi Ray, Our #9x3-1/8" GRK R4 screws in a 240 pack weighs approximately 3lbs in screws. For more information please reach us at (877) 489-2726 or email us at CS@itwbrands.com

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

A:  Yes. They should work fine. 

A:  Yes, but the best way to eliminate the squeaks is to put Liquid Nail on the joist before installing the subfloor.

A:  Hi Frank, Please reach out to our customer service team at (877) 489-2726 or email us at CS@itwbrands.com. We would like to help answer your question, but need more details to provide you with the most accurate information!

A:  Hi, I’m Andrew from GRK. Yes, this would be an appropriate application for GRK R4 fasteners. If there are structural considerations in your particular application, we recommend contacting a local, licensed engineer to evaluate the appropriate fasteners.