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Swpeet 37Pcs 1/4" 5/16" 3/8" 1/2" Premium Zinc Plated Carbon Steel Concrete Knurled Drop in Anchors Assortment Kit, Expansion Screws Internal Forced Expansion Bolts for Solid Concrete
✅ In stock
B
Grade
Analysis Confidence
90%
Price verified Sep 23, 2026 8:21 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.
- 💰The current price is 24% below what this product typically costs — a notable saving over its usual going rate.
- 📉No lower price has surfaced in the past twelve months, making this one of the standout deals in recent memory.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
26.38/28
Recent Value
16.17/22
Market Standing
10.5/20
Deal Strength
16/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Swpeet
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓🥇 What You Get ------- In this kit, You will get 37Pcs 1/4" 5/16" 3/8" 1/2" Premium Zinc Plated Carbon Steel Concrete Knurled Drop in Anchors, Including 20Pcs 1/4" knurled drop in anchors; 10Pcs 5/16" knurled drop in anchors; 5Pcs 3/8" knurled drop in anchors; 2Pcs 1/2" knurled drop in anchors, So many quantities can meet your different daily needs.
✓🥇 Smooth Surface ------- Zinc-plated surface, durable. Good workmanship makes it smooth enough without burrs that you can use it with confidence. Drop in anchors made of high quality carbon steel, zinc plated finish, sturdy and duable.
✓🥇 Product Sizes ------- Including 1/4" 5/16" 3/8" 1/2" , Pefect For use with 3/8-16 bolt, 1-9/16" hole depth and 1/2" hole diameter, Ideal for solid concrete, Zinc CR+3 plated RoHS compliant. Please pay attention to the product size before buying and using.
✓🥇 Easy to Install ------- Drill a hole, then insert the drop-in into the drilled hole, fix the drop in anchor to the concrete with bolts or machine screws.
✓🥇 Wide Application ------- Please pay attention before using this product, Drop-in anchor can only be used in masonry and solid concrete, and should never be used in block or brick base material.
⚙️ Specifications
Material
Iron
Thread Size
1/4 inches 20
Exterior Finish
Zinc
Manufacturer Grade
Grade 3
Head Style
Hex
Fastener Type
Drop-in
Brand
Swpeet
Thread Type
Unc
Item Diameter
0.25 inches
Thread Style
Left Hand
Item Hardness
Grade 3
