GRK Fasteners 5/16 in. X 3-1/2 in. L Star Washer Head Structural Screws 100 pk


Sale price$80.77


GRKs RSS screw is made of specially hardened steel to provide you with high tensile, torque and shear strength. The sharp threads and points bite instantly into the material (including hardwood), reducing the splitting effect due to smaller shanks. RSS screws that are 3-1/8 inch and longer have CEE. Threads which enlarge the screw hole for the non-threaded portion of the fastener, allowing the wood to settle easily and increases the screws drawing strength. The CEE Thread also reduces the friction on the screw shank which can result in lowering the driving torque and the likelihood of splitting the wood. This is why the RSS screw is an efficient lag screw alternative. Our round head with built-in shield (washer type head) has no sharp edges like conventional lag screws. The added shoulder (nominal diameter) underneath the washer has the ability to center the RSS screw in pre-drilled hardware like hinges and connector plates.

  • Brand Name: GRK Fasteners
  • Callout Size: 5/16 in.
  • Length: 3-1/2 in.
  • Drive Style: Star
  • Head Type: Washer Head
  • Product Type: Structural Screws
  • Container Size: lb
  • Number in Package: 100 pk
  • Driver Bit Included: Yes
  • Color: Yellow
  • Indoor or Outdoor: Indoor and Outdoor
  • Diameter: in.
  • Self Drilling: Yes
  • Grade
  • Gauge: Ga.
  • Finish: Climacoat
  • Packaging Type: Clamshell
  • Thread Type: Self Tapping
  • Material: Steel
  • Self Tapping: Yes

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