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1/2-13 x 1 Black Steel Carriage Bolts, 304 Stainless Steel 18-8, Round Domed Head Square Neck Carriage Bolts Screws, Coarse Thread UNC, 8 PCS
✅ In stock
F
Grade
Analysis Confidence
55%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 19, 2026 10:58 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.
- 💰At 27% above its usual rate, this is currently priced higher than what most shoppers have paid.
- 🏷️The retail sticker price has been slashed by 43% — a steep markdown from the official listing.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- 📈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
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🚚 Shipping
Free Shipping
Product Details
✓Package Includes: 1/2-13 x 1" Black Carrigae Bolts 8 pcs
✓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: Made of 304 Stainless Steel with black coating outside which is superior to regular stainless steel fasterners, provides better strength and corrosion resistance in bad environments like high temperature, cold weather and high humidity areas without the need for time consuming and costly maintenance
✓Screw Length: 1 inch (measured from under the head, including the square neck part)
✓Diameter of the screw head: 26.2-27.8 mm; Height of the screw head: 6.4-6.9 mm; Height of the square neck: 6.4-7.1 mm
⚙️ Specifications
Material
Stainless Steel
Thread Size
1/2"-13
Exterior Finish
Black Oxide
Manufacturer Grade
Premium
Head Style
Dome
Screw Head Style
Dome
Color
Black
Fastener Type
Carriage Bolt
Thread Type
Unc
Thread Style
Right Hand
Head Type
Round
