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🔥 HOT DEAL
20 Sets 5/16-18 x 3/4" Black Carriage Bolts Screws and Hex Nuts & Flat Washers, 304 Stainless Steel 18-8, Round Head Square Neck, Full Thread Coverage
✅ In stock
📉 Price recently dropped
B
Grade
Analysis Confidence
90%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 14, 2026 7:45 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
👍 Good Deal- 👍Verdict: Good Deal. Solid value. Price is noticeably below the recent average.
- 💰The current price is 75% below what this product typically costs — a notable saving over its usual going rate.
- 🏷️The retail sticker price has been slashed by 62% — a steep markdown from the official listing.
- 📉This is the most affordable price seen in roughly three months — a solid near-term opportunity.
- 📈Pricing has been trending lower — momentum that adds further appeal to this deal.
How We Scored This Deal
Price Competitiveness
28/28
Recent Value
22/22
Market Standing
1.25/20
Deal Strength
7/20
Momentum
10/10
📝 Product Overview
🏪 Sold by
GVN Online
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Package Includes: 20 Pcs Carriage Bolts (5/16-18 x 3/4") + 20 Pcs Hex Nuts (5/16"-18)+ 20 Pcs 5/16" Inside Diameter Flat Washers
✓Thread Size: 5/16-18; Thread Pitch: 18 TPI; Thread Type: Coarse Thread
✓Material: 304 Stainless Steel (A2-70) with durable black coating; Provides enhanced strength and superior corrosion resistance compared to standard stainless steel or zinc-plated fasteners; Features smooth, burr-free surfaces with scratch-resistant protection during handling and installation; Maintains a uniform industrial-grade black finish for professional applications
✓Bolt head diameter: 0.71 inch (18mm); Bolt head height: 0.17 inch (4.47mm); Bolt length (including the square neck): 0.75 inch (19mm)
✓Carriage bolts feature a domed head with integrated square neck; The square neck mechanically locks into square receiver holes, preventing rotation; The polished dome head creates a semi-recessed installation profile, blending functional grip security with reduced surface protrusion for enhanced safety in woodworking, structural connections, and agricultural equipment applications
⚙️ Specifications
Size
5/16-18 x 3/4"
Color
Black
Material
Stainless Steel 304
Brand
Glvaner
Fastener Type
Carriage Bolt
Head Style
Round
Finish Type
Black
Shape
Round
Item Diameter
0.71 inches
Thread Size
5/16"-18
Number of Pieces
20
