GRK GRK-10231 - RSS Structural Screws, 5/16-in x 5-1/8-in (300-Pack)
GRK GRK-10231 - RSS Structural Screws, 5/16-in x 5-1/8-in (300-Pack)
The GRK RSS (Rugged Structural Screw) is the premier alternative to traditional lag bolts, engineered for high-demand structural applications. Made of specially hardened steel, these screws provide industry-leading tensile, torque, and shear strength. The patented W-Cut design and Zip-Tip point allow for rapid penetration without the need for pre-drilling, significantly reducing installation time and physical effort on the job site.
Equipped with an integrated washer-type head, the RSS screw offers immense holding power and a low-profile finish with no sharp edges. For lengths 3-1/8 inches and longer, the CEE Thread feature enlarges the screw hole for the non-threaded shank, allowing the wood to settle naturally while increasing drawing strength and reducing friction. The Climatek coating provides superior corrosion resistance, making these fasteners code-approved for use in pressure-treated lumber.
- Climatek Coating: AC257 code-approved for use in treated lumber and harsh environments.
- Zip-Tip Technology: Precision point for fast starts and immediate biting without pre-drilling.
- CEE Thread: Enlarges the hole to reduce driving torque and prevent wood splitting.
- Star Drive Recess: T-30 drive size provides six points of contact to eliminate stripping.
- Washer Head: Built-in shield head centers the screw and provides massive drawing power.
| Series | RSS (Rugged Structural Screw) |
|---|---|
| Screw Diameter | 5/16" |
| Length | 5-1/8" |
| Drive Type | T-30 Star Drive |
| Material | Case Hardened Steel |
| Finish | Climatek Corrosion Resistant Coating |
| Head Type | Washer Head |
| Thread Style | Partially Threaded with CEE Thread |
What's Included: (300) 5/16" x 5-1/8" RSS Structural Screws in a bulk contractor box.
Shipping & Returns
Shipping & Returns
Free Shipping Canada Wide* on Orders Over $149
Orders over $149 (before tax) that weigh 50 lb or less ship free.
Free Shipping Policy Restrictions
Large or heavy items (over 50 lb) ship at the most economical rate available. Orders shipping to the Northwest Territories, 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 orders arrive in 2–5 business days after dispatch. Orders within Ontario often arrive the next business day. Expedited shipping is available at extra cost on request.
Most in-stock orders placed by 1:00 PM ET (Monday–Friday) ship the same day. Orders placed after 1:00 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.
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.
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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.
