GRK GRK-10223 - RSS™ Rugged Structural Screw, 5/16" x 3-1/2" (500 Count Pail)
GRK GRK-10223 - RSS™ Rugged Structural Screw, 5/16" x 3-1/2" (500 Count Pail)
Usually 1–2 business days in Ontario, 3–8 elsewhere in Canada. Delivery times are estimates.
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The GRK RSS™ Rugged Structural Screw is the premier alternative to traditional lag bolts, engineered to provide exceptional tensile, torque, and shear strength without the need for time-consuming pre-drilling. Designed for heavy-duty applications, these high-performance fasteners feature a patented design that allows for faster installation and superior drawing power in wood-to-wood connections. The built-in washer head provides immense holding power and a low-profile finish, making it ideal for structural framing, ledger boards, deck posts, and playground equipment.
Performance Features
- Zip-Tip™ Technology: Pointed tip design that bites instantly into wood and eliminates the need for pre-drilling in most applications.
- W-Cut™ Thread: Patented low-torque design that reduces friction on the screw shank, leading to 20% faster drive times and reduced battery wear.
- CEE Thread™: Enlarges the screw hole for the non-threaded portion of the fastener, allowing wood to settle easily and increasing the screw's drawing strength.
- Climatek™ Coating: AC257 code-approved coating providing superior corrosion resistance for both interior and exterior use, specifically approved for pressure-treated lumber.
- Recessed Star Drive: Features 6 points of contact to eliminate stripping and provide zero-wobble productivity.
- Hardened Steel: Case-hardened construction ensures high tensile and shear strength for critical structural loads.
Technical Specifications
| Screw Size | 5/16" x 3-1/2" (8.0mm x 90mm) |
| Drive Type | T-30 Star Drive |
| Head Type | Low-Profile Washer Head |
| Material | Case Hardened Carbon Steel |
| Finish | Climatek™ All-Weather Coating |
| Tensile Strength | 4,247 lbs |
| Shear Strength | 2,948 lbs |
| Code Compliance | ICC-ES ESR-2442 Approved |
What's Included
- (500) GRK 10223 RSS™ Rugged Structural Screws
- (1) Heavy-Duty Resealable Storage Pail
Shipping & Returns
Shipping & Returns
Free Shipping Canada Wide* on Orders Over $149
Eligible items ship free on orders over $149 (before tax).
Free Shipping Policy Restrictions
Items that ship at carrier rates. An item doesn’t ship free if it, or its shipping box, weighs over 50 lb, is longer than 48 in. or has two sides over 30 in., or is bigger than 4 cubic feet (about a 24 × 24 × 12 in. box). Carriers charge these by size, not just weight. These items say “Shipping charge applies” on the product page, and you’ll see the exact cost at checkout before you pay. Orders to the Northwest Territories, Yukon and Nunavut, and to a few remote postal areas (codes starting A0K, A0P, A2V, G0G, J0M, R0B or V0T), are not eligible for free shipping and are charged carrier rates at checkout. *Our free shipping policy is subject to change without notice.
How long will it take to get my order?
Typical delivery times after your order ships: 1–2 business days in Ontario; 3–5 in Quebec, the Atlantic provinces (NS, NB, PE) and the Prairies; 5–8 in BC and Newfoundland & Labrador. Expedited shipping is available at extra cost on request.
Most in-stock orders placed by 12:00 PM ET (Monday–Friday) ship the same day. Orders placed after 12:00 PM ET, on weekends or on holidays ship the next business day.
Large, overweight and LTL freight orders may need 1 or more extra business days to prepare.
What shipping carriers do you use?
Most orders are shipped courier via Purolator, UPS, or Canada Post. We will use other carriers at our own descretion depending on Product size and weight.
Do you ship overseas?
We are not currently shipping to the USA. We are currently mainly shipping within Canada, and we are slowly adding Other Countries. Please Contact us if you are unable to Checkout. See more out International Orders HERE
I only received part of my order, where is the rest?
Your order may ship in more than one package depending on the quantity or size of the products purchased. Also, items in your order may ship from either of our 2 locations and arrive in separate deliveries.
Sometimes we place smaller items from your order inside of one box to save on shipping so always open all boxes to confirm what you have recieved.
Can I return my product?
Returns and exchanges follow the manufacturer's satisfaction guarantee for each brand. Please contact us before sending anything back, and we will tell you where to send it.
Please inspect your order when it arrives. If an item arrived damaged, is defective, or isn't what you ordered, contact us with your order number and photos. We'll cover return shipping and send a replacement or refund. For shipping damage, please let us know within 7 days of delivery so we can file a claim with the carrier. Defects and wrong items can be reported any time within our 30-day return window. After 30 days, defects are covered by the manufacturer's warranty.
You pay the shipping cost of returning an item, or you can bring it to either of our stores.
See our Returns Policy and Warranty Information for details.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Discover more in our FAQ
Shoot our team an email & we’ll get back to you ASAP
How fast will my order ship?
How fast will my order ship?
Most in-stock orders placed before 12 PM ET (Mon–Fri) ship the same day. Usually 1–2 business days in Ontario, 3–8 elsewhere in Canada. Delivery times are estimates. You will get a tracking email once your order ships.
Do you ship internationally?
Do you ship internationally?
We mainly ship within Canada and are not currently shipping to the USA. Please contact us about other international orders.
What is your return policy?
What is your return policy?
Returns and exchanges follow the manufacturer's satisfaction guarantee. Please contact us before sending anything back. Please inspect your order when it arrives. If an item arrived damaged, is defective, or isn't what you ordered, contact us with your order number and photos. We'll cover return shipping and send a replacement or refund. For shipping damage, please let us know within 7 days of delivery so we can file a claim with the carrier. Defects and wrong items can be reported any time within our 30-day return window. After 30 days, defects are covered by the manufacturer's warranty. You pay return shipping, or you can bring the item to either of our stores. See our Returns Policy and Warranty Information.
