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RSS Structural Screw, 3/8 in Thread, 3-1/8 in L, Washer Head, Star Drive, Steel Climacoat - pack of 500

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GRK Fasteners 10221Click To Copy RSS Structural Screw, 3/8 in Thread, 3-1/8 in L, Washer Head, Star Drive, Steel Climacoat - pack of 500

Item #: 10221 by ITW BRANDS

UPC #: 772691102218

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$319.27

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Features
  • Recessed star drive zero stripping, with six points of contact
  • CEE Thread™ enlarges hole to reduce splitting
  • W-Cut™ low torque, faster drive
  • Zip-Tip™ no pre-drilling, faster penetration
  • Washer head for immense holding power
  • Cutting pockets provide a clean hole and reduces splitting and bore with precision
  • Case hardened steel for high tensile, torque and shear strength
  • Climatek™ coating is AC257 code approved for use in treated lumber

Callout Size

5/16"

Finish

Climacoat

Returnable

Yes

Defective Code

A

Color

Yellow

Drive Style

Star

Number in Package

500 pk

Driver Bit Included

No

Indoor or Outdoor

Indoor and Outdoor

Thread Type

Self Tapping

Packaging Type

Boxed

Length

3-1/8

Self Drilling

Yes

Product Type

Structural Screws

Self Tapping

Yes

Material

Steel

Each Weight

16.430 LB

Velocity

X

Head Type

Washer

Hazardous Material

No

Tensile Strength

5824 lb

Thread Size

3/8"

Thread Length

2-1/8"

Drive Size

T30

Shear Strength

3695 lb

Nomenclature

10221 SCREW STRCTRL 5/16X3-1/8

Product Overview
SCREW STRUCTURAL 5/16X3-1/8IN
Specifications:

Applicable Materials: Wood

Application: For interior and exterior use in carrying beams, ledger boards, stair rails, deck posts, playground equipment and other professional applications

GRK's 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 in 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 screw's 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.