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Sprite Science

5/16-18 Threaded Inserts for Wood 15mm Length Furniture Screw in Threaded Insert Nuts 40 Pieces

✅ In stock ⭐ Lowest price we've tracked
B
Grade
👍 Good Deal
64.98/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$7.99
Listed $7.99
Analysis Confidence 100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Oct 29, 2026 7:07 PM · 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.
  • 💰At 14% off its standard going rate, this offer delivers clear value for the money.
  • 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
  • ➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 15.78/28
Recent Value 7.44/22
Market Standing 17.75/20
Deal Strength 20/20
Momentum 4/10

📝 Product Overview

🏪 Sold by Up2U
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

✓Pack of 40 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
Wood
Fastener Type
Insert
Thread Size
5/16"-18
Color
White
Metal Type
Alloy Steel
Brand
Sprite Science
Thread Type
Unified National Coarse (Unc)
Inside Thread Size
M12.8
Thread Style
Right Hand
Thread Coverage
Fully Threaded
Thread Class
Class 2A
B
$7.99
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