Ratings & Reviews for GRK R4 #10 x 3-1/8-in Polymer Exterior Multi-material screws 630 -Per Box
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise these screws for exceptional strength, reliable holding power, and effortless installation. The star-drive design eliminates stripped heads, a common frustration with traditional screws, while self-drilling capability means no pre-drilling needed. Reviewers highlight superior performance in demanding applications like pressure-treated lumber, fencing, and decking, noting they resist loosening over time. Many report switching exclusively to this brand after experiencing better results than cheaper alternatives. A few mention slightly higher cost, but most agree the reduced frustration and durability justify the investment. Overall, customers consider these a trusted, professional-grade choice for both DIY and serious projects.
Customer review summary generated by AI, including incentivized reviews.Great screws
Work well
From R4 #10 x 3-1_SLASH_8-in Polymer Exterior Multi-material screws 70 -Per Box Verified Purchaser
Not sure
Worked as expected
From R4 #10 x 4-in Polymer Exterior Multi-material screws 50 -Per Box Verified Purchaser
Need a special bit (included) T20
these work great for decking and framing, also good for anchoring heavier items. I use these around our cabin.
From R4 #10 x 4-in Polymer Exterior Multi-material screws 50 -Per Box Verified Purchaser
great price
Would Recommenddurable, good quality
From R4 #10 x 4-in Polymer Exterior Multi-material screws 50 -Per Box Verified Purchaser
Great Holding Power
Would RecommendQuality, uniform threads and fast driving. Drills its own pilot and draws right in, even hard yellow pine.
From R4 #10 x 3-1_SLASH_8-in Polymer Exterior Multi-material screws 70 -Per Box Verified Purchaser
Start with these and do it right the first time
Would RecommendAbsolutely reliable starting, driving, and backing out. I hired a contractor to resurface my deck and he used a cheaper competitor’s product. Those rascals will strip and break off. And the ones that don’t break have too much unthreaded shank. I have to start backing them out with a claw hammer. I am redoing about 40 percent of his fasteners and these are perfect. I also predict the finish will last much longer than the cheaper painted product.
From R4 #10 x 2-1_SLASH_2-in Polymer Exterior Multi-material screws 240 -Per Box Verified Purchaser
Buy these
Excellent all around
From R4 #10 x 3-1_SLASH_8-in Polymer Exterior Multi-material screws 210 -Per Box Verified Purchaser
Can’t beat these
The chiseled tap helps getting them started and they go in smoothly after that. Just have to back off when you reach the end as they will burrow deep into the immediate surface. Not usually any problem with them countersinking in other words.
From R4 #10 x 4-in Polymer Exterior Multi-material screws 150 -Per Box Verified Purchaser
Good buy
Would RecommendGRK screws are great and reliable
From R4 #10 x 4-in Polymer Exterior Multi-material screws 50 -Per Box Verified Purchaser
Eat me and your review
Eat me and your review
From R4 #10 x 4-in Polymer Exterior Multi-material screws 150 -Per Box Verified Purchaser
Eat me and your review
Eat me and your review
From R4 #10 x 4-in Polymer Exterior Multi-material screws 50 -Per Box Verified Purchaser
Secure lap joints.
Would RecommendNeeded screws to secure lap joints on 4x6 PT wood. They easily screwed in a secured the joints.
From R4 #10 x 4-in Polymer Exterior Multi-material screws 50 -Per Box Verified Purchaser
Easy to use
Would RecommendClean
From R4 #10 x 3-1_SLASH_8-in Polymer Exterior Multi-material screws 70 -Per Box Verified Purchaser
Thanks for sharing your positive experience with GRK, Bobby. We work hard to make sure our products are well designed. We’d love to have you follow u... Read More
Check the quality
Horrible more than half the screws in the container did not have threads they were basically torque head nails
From R4 #10 x 4-in Polymer Exterior Multi-material screws 150 -Per Box Verified Purchaser
Hello,
Thank you for reaching out. Can we have a little more information about your purchased product? Please contact us on our hotline. T... Read More
Hi there, thanks for sharing your positive experience with our Screws. We work hard to make sure our products are well designed. We’d love to have yo... Read More