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5/16-18 Threaded Inserts for Wood 20mm Length Furniture Screw in Threaded Insert Nuts 40 Pieces
✅ In stock
⭐ Lowest price we've tracked
📉 Price recently dropped
A
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 11, 2026 8:32 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
🔥 Great Deal- 🔥Verdict: Great Deal. Strong buy. Price is significantly below its historical average.
- 💰At 19% off its standard going rate, this offer delivers clear value for the money.
- 🏷️A 20% cut from the official retail price adds further appeal.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- 📈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
21.06/28
Recent Value
16.2/22
Market Standing
18.18/20
Deal Strength
20/20
Momentum
10/10
📝 Product Overview
🏪 Sold by
Up2U
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Pack of 40 pieces of 5/16-18 threaded inserts for wood working applications, 15mm length, 8mm Allen key included.
✓Threaded insert head Φ: 0.545" / 13.8mm, body Φ: 0.385" / 9.8mm, threads Φ: 0.500" / 12.8mm.
✓Threaded inserts are easy to install, simply drill the appropriately sized hole and Install the inserts with hex key provided or other optional drive tools you have.
✓5/16-18 threaded inserts are ideal solution for soft woods, plywood, MDF, and composition board.
✓On Soft wood, recommended drilling : 29/64" (11.5mm) or 15/32" (12mm). On Hard wood such as white oak or maple, recommended drilling: 15/32" (12mm), 31/64".
⚙️ Specifications
Material
Carbon Steel
Fastener Type
Lock
Thread Size
5/16"-18
Exterior Finish
Zinc
Color
Silver
Metal Type
Carbon Steel
Brand
Sprite Science
Thread Type
Unified National Coarse (Unc), Unified National Fine (Unf)
Inside Thread Size
M12.8
Thread Style
Left Hand
Thread Coverage
Partially Threaded
