GRK GRK-12217 - Fasteners 12217 RSS Rugged Structural Screw (5/16" x 2-1/2"), 100-Pack
GRK GRK-12217 - Fasteners 12217 RSS Rugged Structural Screw (5/16" x 2-1/2"), 100-Pack
The GRK 12217 RSS (Rugged Structural Screw) is an industry-leading lag screw alternative designed for heavy-duty structural applications. Engineered from specially hardened steel, these fasteners provide exceptionally high tensile, torque, and shear strength. The integrated washer head design offers immense holding power and eliminates the need for separate washers, while the proprietary Climatek™ coating ensures superior corrosion resistance, making it code-approved for use in pressure-treated lumber and exterior environments.
Performance Features
- Zip-Tip™ Technology: Pointed tip enables instant starts and eliminates the need for pre-drilling in most wood types.
- W-Cut™ Thread: Patented design reduces driving torque and prevents wood splitting by clearing out wood fibers during installation.
- CEE Thread™: Enlarges the hole for the non-threaded portion of the screw, reducing friction and allowing the wood to settle more easily for tighter joints.
- Climatek™ Coating: ICC-ES AC257 approved coating provides high-grade corrosion protection for both interior and exterior use.
- Star Drive Recess: Features 6 points of contact to eliminate cam-out and stripping, ensuring maximum torque transfer.
Technical Specifications
| Model Number | 12217 |
| Diameter | 5/16" |
| Length | 2-1/2" |
| Drive Type | T-30 Star Drive |
| Material | Case Hardened Steel |
| Tensile Strength | 4,247 lbs |
| Shear Strength | 2,948 lbs |
What's Included
- (100) 5/16" x 2-1/2" RSS Structural Screws
- (1) T-30 Star Driver Bit
Shipping & Returns
Shipping & Returns
Get FREE Shipping Canada Wide* When You Spend Over $149.00!
For every purchase that is over $149 (Before Tax) and doesn’t weigh more than 50 lbs and is not over sized , we'll ship your order at no charge to you, that’s right, FREE!!!
Free Shipping Policy Restrictions
Free Shipping is not available for Large and or Heavy items (over 50lbs) Any Items that fall into this category will be shipped via the most economical rates and options that are available. Orders being shipped to P.EI, NFLD,NWT, Yukon and Nunavut are not eligible for Free Shipping.*Our Free Shipping Policy is subject to change without notice
How long will it take to get my order?
Most in Stock orders ship same day if placed by 1:00 PM eastern time (Monday-Friday)* **
Orders shipping to non remote locations within Ontario and Quebec should arrive witin 2-3 Business days.
Orders Shipping to the Maritimes or Western Canada to non remote areas usually arrive within 3-5 business days
*Large Over Weight and LTL Freight shipments may require 1 or more business days to prepare for shipping and can take 5-7 business days or more to arrive.
*Orders received Friday after 1:00 PM eastern time, on weekends, or on holidays, will be shipped out the next business day.
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.
If a product is defective on arrival and you notice it and contact us within 3 days of delivery, Wise Line Tools will handle it and pay the shipping.
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.
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How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1 business day. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.
Do you ship internationally?
Do you ship internationally?
Yes, we offer international shipping to most countries. Shipping rates and delivery times vary depending on the destination. Any applicable customs duties or taxes will be the responsibility of the recipient. We are not currently shipping to the USA.
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. If a product is defective on arrival and you notice it and contact us within 3 days of delivery, Wise Line Tools will handle it and pay the shipping. You pay return shipping, or you can bring the item to either of our stores. See our Returns Policy and Warranty Information.

