
Supplier product photography. Confirm your final color with a physical sample.
GRK Fasteners
#10 x 4" R4 Screws - Box of 1,000
QXO product C-500410 · 1 options
Selected: GRK SCREWS R4 10X4 BULK 1000
QXO SKU 500410 · Product number GRKR4104B
Free, no-obligation quote. Our team confirms local availability, required quantities, compatible components, and installation pricing.
Selected option specifications
- UOM
- BX
- Item Weight
- 40
- Algae Resistance
- No
- Pieces Per Box
- 1000
- Applicable Standards
- AC257 Approved IBC/IRC Code Compliant ESR #3201 ASTM D 1761 ASTM D 1037 ANSI Accredited ICC Approved
About this product
GRK's R4™ self-countersinking screw has a patented underhead with saw-blade like cutting teeth and six self-contained cutting pockets. They together act similar to a circular saw-blade, transporting the drill dust away from the edge of the screw hole while cutting a perfectly clean hole into even the most brittle materials without cracking any surface treatment. This kind of design enhances the R4's versatility by allowing the fastener to countersink into even the hardest woods. The head of the screw closes the hole off with precision leaving no damaged fibers around the head.



