GRK Black Structural Screw RSS 5/16X5-1/8

Made of hardened steel with a Climatek coating, these RSS structural screws deliver the high tensile torque and shear strength you need to get the job done right. Suitable for use in treated lumber and as an alternative to lag screws, the structural screws have a recessed star head that offers 6 points of contact to eliminate stripping. The washer head provides exceptional holding power, while the CEE tread reduces friction and increases drawing strength to help eliminate splitting.

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