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IMSCREWS 5/16-18 x 3 Carriage Bolts, 304 Stainless Steel (18-8), Full Thread Structural Fasteners for 4x4 Posts, Decks & Timber Construction, 20 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 22, 2026 5:20 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 21% above its usual rate, this is currently priced higher than what most shoppers have paid.
- 🏷️A 31% cut from the official retail price adds further appeal.
- 📉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
0/28
Recent Value
0/22
Market Standing
2.14/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
IMSCREWS
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Industrial 3 Penetration: Expertly designed for through-bolting thick timbers, such as joining two 2x4s (3 total) or securing heavy-duty brackets to structural 4x4 posts.
✓Reinforced 5/16 Strength: The 5/16 shank offers a significant boost in load-bearing and shear resistance over standard 1/4 bolts, ensuring safety in structural applications.
✓Marine-Grade 304 Stainless: Forged from 18-8 (304) stainless steel, providing superior rust protection in coastal environments, humid gardens, and with treated lumber.
✓Tamper-Resistant Safety Head: The smooth round head offers a clean finish without sharp edges—ideal for public benches, playgrounds, and child-safe backyard structures.
✓Self-Locking Square Neck: The precision square shoulder bites firmly into wood fibers, locking the bolt so you can easily tighten the nut with one wrench 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
