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Item #:
220502042
GRK Fasteners RSSTM 5/16 x 6 Rugged Structural Screws, Black, 25 PCS
Item #:
220502042
MWK 138810
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
QTY:
Order now and get it around Tuesday, September 01
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Engineered for professional-grade connections in heavy duty framing, multi-ply beams, and timber framing.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Rugged Durability
Engineered for lasting strength, these screws withstand heavy loads and harsh environments, ensuring your projects remain secure for years.
Corrosion Resistance
The black finish provides effective protection against rust, making them ideal for outdoor applications and extending lifespan.
User-Friendly Design
Featuring a unique thread design, these screws offer easy installation and superior grip, reducing slippage and enhancing overall assembly efficiency.
Product Details
Product Description
GRK Fasteners RSSTM 5/16 x 6 Rugged Structural Screws, Black, 25 PCS
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Customer Questions & Answers
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Question:
Can these screws be used for outdoor projects?
Answer: Yes, the Black Climatek™ coating provides exceptional corrosion resistance, making them ideal for outdoor use. -
Question:
Do I need to pre-drill when using these screws?
Answer: No, the Zip-Tip technology eliminates the need for pilot holes in most woods. -
Question:
Are these screws suitable for hardwoods?
Answer: Yes, the W-Cut thread design minimizes splitting in dense hardwoods and engineered lumber.
GRK Wood Screws Editorial Review
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Pros
- Excellent build quality
- Highly effective performance
- User-friendly design
- Great customer support
- Stylish appearance
Cons
- A bit heavy for travel
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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MWK 138810
Order now and get it around Tuesday, September 01
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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Features & Benefits
- Heavy-duty fasteners ideal for framing, decking, and construction.
- Superior corrosion resistance with Black Climatek™ coating.
- No need for pilot holes thanks to Zip-Tip™ technology.
- Installs 3x faster than traditional lag screws.
- Approved for structural applications with ICC-ES ESR-2442.
- Precision engineering reduces installation torque and prevents stripping.
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