GRK Fasteners 5/16 in. x 5-1/8 in. Rugged Structural Screw (40-Piece per Pack)-112231 - The Home Depot

GRK Fasteners

Model # 112231

Internet # 203533480

Store SKU # 519370

5/16 in. x 5-1/8 in. Rugged Structural Screw (40-Piece per Pack)

GRK Fasteners 5/16 in. x 5-1/8 in. Rugged Structural Screw (40-Piece per Pack)

This item has been discontinued.
The Home Depot no longer carries this specific product.

$27.44 / each


Model # 112231

Internet # 203533480

Store SKU # 519370

GRK Fasteners RSS screw is made from Climatek coated and hardened steel. Its sharp threads and point bite instantly into material (including hardwood), reducing the splitting effect caused by smaller shanks. Its washer type head has no sharp edges like conventional lag screws, and the added shoulder underneath the washer has the ability to center the RSS screw in predrilled hardware.

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

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Assembled Depth (in.)  0.3125 in  Assembled Height (in.)  5.125 in 
Assembled Width (in.)  0.3125 in  Screw Length  5-1/8 in 
Coated  Drive Style  Star 
Driver bit included  Yes  Fastener Callout Size  5/16x 5-1/8 
Fastener Plating  Polymer  Fastener Thread Type  CEE Type 
Fastener Type  Specialty Fastener  Fastener/Connector Material  Steel 
Finish  Climatek Coated  Finish Family  Metallic 
Head Style  Round  Indoor/Outdoor  Indoor/Outdoor 
Measurement Standard  SAE  Package Quantity  40 
Primary Use  Ledger boards  Product Weight (lb.)  0.05 lb 
Self drilling  Yes  Self tapping  Yes 
Size  5/16 in  Tamper Resistant  No 
Warranty / Certifications
Manufacturer Warranty  No 


Rated 4 out of 5 by 2 reviewers.
Rated 4 out of 5 by Much Preferred Over Lags The first part: I used these to tie 4x6 PTs sills on an outdoor air-drying 'kiln'. The 5 1/8 length includes 1/8 of the head; after countersinking the heads 2" into the wood [leaving ~ 1.5" of meat], they aggressively drew up the other member [about 3" of end grain]; no splitting, no predrilling; easy to drive with my 18V impact drill and the provided T-30 bit. While I'm not sure why the 'shear' rating shown on the in sert is a function of the screws length [?], I'd have no qualms about using these to secure 2x beams to 6x shouldered posts. They're rather lightweight when compared to galv lags. The second part: coating cl;aims to be compatible with 0.40 pcf ACQ-D and CA-B materials [lifetime guarantee] ... but will I ever know. Made in Taiwan for a Canadian company. I'll buy again for those 'special' apps. October 22, 2014
Rated 4 out of 5 by these are great screws that tighten well in even softer, older wood and stay tight I used these screws in older wood making horse barn, they grabbed well and tightened up without pulling through August 13, 2014
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Store Exclusive. This item is available for purchase in select stores only.