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GRK Fasteners RSS™ 5/16 x 4 Rugged Structural Screws, SS 305, 45 PCS
✅ In stock
📉 Price recently dropped
C
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 22, 2026 3:13 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
🙂 Fair Price- 🙂Verdict: Fair Price. Small discount vs history. Consider waiting for a better drop.
- 💰The price is modestly below what this product ordinarily sells for.
- 🏷️The listed retail price is trimmed by 10% at checkout.
- 📉This is the most affordable price seen in roughly three months — a solid near-term opportunity.
- 📈The direction is downward at the moment; if that holds, an even better price may surface — though timing the market is never certain.
How We Scored This Deal
Price Competitiveness
4.73/28
Recent Value
9.6/22
Market Standing
14.18/20
Deal Strength
7/20
Momentum
10/10
📝 Product Overview
🏪 Sold by
USA Pump Depot
🚚 Shipping
Free Shipping
Product Details
✓Heavy Duty Lag Screw Alternative: Eliminates pre-drilling in most woods with Zip-Tip technology. Installs 3x faster than traditional lag screws
✓ESR-2442 Code Approved For Structural Applications: Engineered for professional-grade connections in heavy duty framing, multi-ply beams, and timber framing. Integrated washer head delivers maximum clamping force for zero-gap joints in LVL, LSL, and engineered lumber.
✓Coastal Grade: Rust resistant stainless steel provides extra durability for high moisture environments such as pool decking, docks, boardwalks, etc.
✓W-cut Thread Design: Reduces installation torque by 40% for smoother, faster driving. CEE threads minimize splitting in dense hardwoods, engineered lumber, and laminated beams.
✓Precision Engineering: Star/Torx drive recess with 6 points of contact prevents stripping and minimizes wobble between screws and bits.
⚙️ Specifications
Material
305 Stainless
Head Style
Washer Head
Item dimensions L x W x H
2.5 x 3.5 x 6.75 inches
Exterior Finish
305 Stainless
Thread Size
5/16" x 4"
Item Dimensions
2.5 x 3.5 x 6.75 inches
Item Weight
2.4 ounces
Thread Coverage
Partially Threaded
Fastener Size
5/16" x 4"
Size Name
5/16" x 4"
Item Diameter
0.31 inches
