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IMSCREWS 5/16-18 x 3 Carriage Bolts, 304 Stainless Steel (18-8), Full Thread Structural Fasteners for Decks, 4x4 Posts & Timber Construction, 5 PCS
✅ In stock
F
Grade
Analysis Confidence
73%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 23, 2026 5:09 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰At 10% off its standard going rate, this offer delivers clear value for the money.
- 🏷️The retail sticker price has been slashed by 74% — a steep markdown from the official listing.
- 📉Better-priced windows have occurred before, though not frequently — today's price is reasonably competitive.
- 📈Prices have been moving higher lately — waiting risks paying more if that momentum continues.
How We Scored This Deal
Price Competitiveness
11.46/28
Recent Value
3.8/22
Market Standing
5/20
Deal Strength
1.5/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
IMSCREWS
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Heavy-Duty 3 Reach: Precision-engineered to penetrate thick timber, such as standard 4x4 posts (3.5 actual) when countersunk, or joining two 2x4 boards with thick metal brackets.
✓Reinforced 5/16 Diameter: The robust 5/16-inch shank provides a 50% increase in cross-sectional strength over 1/4 bolts, ensuring superior shear resistance for load-bearing joints.
✓Marine-Grade 304 Stainless: Crafted from premium 18-8 (304) stainless steel for maximum rust prevention. Highly recommended for ACQ pressure-treated lumber and humid environments.
✓Safety-First Aesthetic Finish: The smooth, drive-free domed head eliminates sharp edges and snagging, making it the premier choice for playground swings, slides, and garden benches.
✓Anti-Spin Square Neck: The precision square shoulder locks firmly into wood fibers, allowing for easy, one-handed tightening of the nut from the opposite side.
⚙️ Specifications
Material
Stainless Steel
Thread Size
5/16"-18
Exterior Finish
Stainless Steel
Head Style
Round
Color
Silver
Fastener Type
Carriage Bolt
Brand
IMSCREWS
Thread Style
Right Hand
Size
5/16"-18 x 3"
Metal Type
Stainless Steel
Head Type
Round
