Model # 113221

Internet #203533485

Store SKU #517771

GRK Fasteners 5/16 in. x 3-1/8 in. Rugged Structural Screw (15-Piece per Pack)
0772691132215

GRK Fasteners

5/16 in. x 3-1/8 in. Rugged Structural Screw (15-Piece per Pack)

$12.18 /each

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Product Overview

See for yourself how much faster the GRK RSS screws drive compared to traditional lag screws. Treated lumber and structurally code approved with immense and unmatched drawing power. Recessed star drive means - No stripping. Patented CEE Thread feature means - No splitting. Our engineered Zip-Tip means - No pre-drilling. Available from 3-1/8 in. to 12 in. in length. Applications include direct replacement for lag screws and bolts including: Decks, Porches and Patios (Ledger boards, posts), Outdoor Structures (Sheds, Pergolas, and Raised Beds), Log Cabin homes and Agriculture (Pole Barns), General Remodeling (Laminating beams, Trusses).

  • Ideal for ledger boards and more
  • Self-tapping
  • W-cut thread design
  • May be used as a lag screw alternative

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Customer Reviews

5/16 in. x 3-1/8 in. Rugged Structural Screw (15-Piece per Pack) is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Really Works! I thought this was too good to be true, but I tried it out anyway, just to see. It works wonderfully for my application, which was mounting a 200 lb capacity rack mount unit to the wall with only two available studs behind drywall. The final weight on the wall, including the rack mount unit and the internal electronic equipment was 168 lbs. I used it instead of the recommended 5/16" lag-bolts-to-studs. It's amazing. You don't have to drill a pilot hole. This screw (lag bolt) drills in like butter and makes its own drill hole whilst the gripping screw flanges come right after (in the same screw). It requires a T-30 bit which excludes any stripping that one might encounter with a regular philips-head. Can't recommend this enough. Really! It's AWESOME!!
Date published: 2015-06-11
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