Boulder, CO · 2525 Arapahoe Ave
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GRK Fasteners

GRK Fasteners RSS 12221 Structural Screw, 5/16 in Thread, 3-1/8 in L, W-Cut Thread, Washer Head, Star Drive, Steel

MPN: 12221  •  SKU: 100038440  • UPC: 772691122216
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    GRK Fasteners RSS 12221 Structural Screw, 5/16 in Thread, 3-1/8 in L, W-Cut Thread, Washer Head, Star Drive, Steel

    GRK Fasteners 12221

    GRK's RSS™ rugged structural screw is a structural fastener designed for ease of installation and the strongest of connections. RSS fasteners drive into most woods without the need for pre-drilling. The specially engineered design results in a low-effort installation, especially compared to conventional lag screws.

    Thread Size 5/16 in
    Length 3-1/8 in
    Thread Type W-Cut
    Head Type Washer
    Drive Type Star
    Point Type Zip-Tip
    Material Steel
    Finish Climatek-Coated
    Package Quantity 100 PK
    Type Rugged
    Thread Length 2-1/8 in
    Drive Size T30
    Color Yellow
    Applicable Materials Treated Lumber, Wood
    Shear Strength 2948 lb
    Tensile Strength 4247 lb
    • Fast bite tip provides a fast start
    • Zip-Tip™ no pre-drilling, faster penetration
    • W-Cut™ low-torque, smoother drive
    • Reduce wear and tear on the battery while you work with Batteryguard™, a shock-absorbing battery to tool connection
    • S3 technology double hardens the blade edge for increased cutting life
    • Climatek™ coating is AC257 code approved for use in treated lumber