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1/2-13 x 1 (8 Sets) Carriage Bolts Black, 304 (18/8) Stainless Steel Carriage Screws with Hex Nuts and Flat Washers, Square Neck Round Dome Head, Coarse Thread
✅ In stock
📉 Price recently dropped
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 2:27 PM · 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.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 🏷️A 33% cut from the official retail price adds further appeal.
- 📉Better-priced windows have occurred before, though not frequently — today's price is reasonably competitive.
- 📈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
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
10/10
📝 Product Overview
🚚 Shipping
Free Shipping
Product Details
✓Ready-to-Use Bolt Kits—8 Sets each containing a Carriage Bolt (1/2-13 thread size, 1" long), Hex Nut (fits 1/2-13 bolts), Flat Washer (1/2" Inner Diameter)
✓Length: 1 inch (25mm approx.) underhead length – measured from bottom of dome head to end of threads, includes square neck
✓Diameter of the head: 26.2-27.8mm; Height of the head: 6.4-6.9mm; Height of the square neck: 6.4-7.1mm;
✓Design feature: Big round domed head designed to eliminate the need for a washer; Square neck underneath the head helps self locking; Their strong holding power ensures the stability and reliability of your contructions; Use wrench or plier tools to turn the square neck to install them
✓Material: Premium 304 Stainless Steel with a wear-resistant black coating, engineered to outperform standard 304 stainless and zinc-plated fasteners. Combines unmatched strength and corrosion resistance for extreme environments (high heat, freezing temps, humidity) while maintaining a sleek, low-maintenance finish that resists fading
⚙️ Specifications
Material
Stainless Steel
Thread Size
1/2"-13
Exterior Finish
Black Oxide
Manufacturer Grade
Grade A
Head Style
Round
Color
Black
Fastener Type
Carriage Bolt
Brand
EASTLO
Thread Type
Unc
Thread Style
Right Hand
Item Hardness
Grade 5
