Unbranded (100) Drop-In 1/4-20'' Concrete Expansion Anchor Drill Stainless Steel 1/4-20
Unbranded (100) Drop-In 1/4-20'' Concrete Expansion Anchor Drill Stainless Steel 1/4-20
Description
If you are a construction worker, or work in the mechanical, construction, transportation, and other industries, and need to control the expansion rate and expansion range of concrete, then our expansion anchor will be one of your essential choices. Because of its excellent material, portable and lightweight structure, and excellent performance, it can become your good assistant in the work.
Key Features
Sturdy and Durable: It is made of high-quality 304 stainless steel that is very sturdy, wear-resistant, rust-proof, and Arial-resistant, which can effectively protect the internal parts and prolong the service life.
Drop-in Design: Our anchors feature a drop-in design that allows for precise control of expansion rate and expansion range to suit different concrete elements and engineering requirements.
Good Performance: This product features a heavy-duty anchoring system and internal thread, typically used in conjunction with machine screws, bolts, and screws to secure the fixing device to concrete and other masonry materials. Due to its design, it is also commonly used for temporary structures. It can effectively reduce the shrinkage stress and deformation of concrete while reducing energy consumption and improving engineering efficiency.
Safe and Reliable: It does not loosen easily and its reliable expansion control mechanism has undergone rigorous safety testing to ensure safe use.
Cost Saving: Since expansion anchors are made of precast concrete elements, while the anchor itself is always in the concrete, the bolts you use to hold it in place can be removed and reused. Thus, it helps you save money.
Compact and Lightweight: Due to its small and lightweight (1.76 lbs)structure, it can be very easy to carry in your bag or box.
Enough Quantity: One hundred expansion anchors inside one package can meet your large-scale work needs at once and save you cost.
Customer Service: We aim to provide quality products and services. If you have any problems, please feel free to contact us. We will reply and solve the problem for you as soon as possible.
Details
Diamond Pattern: This design makes it look not only more beautiful but also helps to increase friction and play a non-slip role and help to grip and hold the insert in the concrete well.
Smooth Surface: The surface of the product is simply brightened and deburred to make it more comfortable to touch and look more lustrous.
How to Use
1. You need to drill a hole of the right size.
2. Then insert the anchor into the drilled hole.
3. Then you need to insert the installation tool (not included) into the anchor bolt.
4. The anchor is then tapped with a hammer to expand the anchor so that it can be embedded in the concrete.
Application
It is suitable for new energy, light industry, petrochemical industry, communication industry, marine industry, machining, medical machinery, construction industry, automotive manufacturing and bridge construction, and suitable for holes with a diameter of 0.307-0.315inch.
Specifications
Material: 304 Stainless Steel
Surface Treatment: Brighten and Deburred
Mounting Type: Drop-in
Number of Pieces: 100
Thread Size: 1/4-20''
Product Outer Circle Diameter: 8mm/0.315in
Perforation Diameter: 7.8-8mm/0.307-0.315in
Package Size: 11*10*3.5cm/4.3*3.9*1.3inch
Gross Weight: 0.8kg/1.76lb
Package Included
100* Expansion Anchors
Notes
- These anchors should only be used in masonry and solid concrete, please do not use them for block or brick-based materials.
- They are typically used with mechanical screws, bolts, and threaded rods(none included).
- Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.
- We maintain high standards of excellence and strive for hundred percent customer satisfaction. Feedback is very important to us. We hope that you contact us immediately before you give neutral or negative feedback, so that we can address your concerns. It is impossible to address issues if we do not know about them!
Custom Bundle | No |
---|---|
Features | Nice and Practical, High Quality Packaging, Long service life |
Brand | Unbranded |
Shipping notice | Can not ship to Puerto Rico,Alaska/Hawaii |
Material | 304 Stainless Steel |
Quantity | 19 |
Unit of Measurement | Inch |
Anchor Type | Drop-In Anchors |
Surface Treatment | Brighten and Deburred |
Mounting Type | Drop-in |
Thread Size | 1/4-20'' |
Product Outer Circle Diameter | 8mm/0.315in |
Perforation Diameter | 7.8-8mm/0.307-0.315in |
Package Size | 11*10*3.5cm/4.3*3.9*1.3inch |
Brand: | Unbranded |
---|---|
Isin: | IXF053QCUHFS |

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Description
If you are a construction worker, or work in the mechanical, construction, transportation, and other industries, and need to control the expansion rate and expansion range of concrete, then our expansion anchor will be one of your essential choices. Because of its excellent material, portable and lightweight structure, and excellent performance, it can become your good assistant in the work.
Key Features
Sturdy and Durable: It is made of high-quality 304 stainless steel that is very sturdy, wear-resistant, rust-proof, and Arial-resistant, which can effectively protect the internal parts and prolong the service life.
Drop-in Design: Our anchors feature a drop-in design that allows for precise control of expansion rate and expansion range to suit different concrete elements and engineering requirements.
Good Performance: This product features a heavy-duty anchoring system and internal thread, typically used in conjunction with machine screws, bolts, and screws to secure the fixing device to concrete and other masonry materials. Due to its design, it is also commonly used for temporary structures. It can effectively reduce the shrinkage stress and deformation of concrete while reducing energy consumption and improving engineering efficiency.
Safe and Reliable: It does not loosen easily and its reliable expansion control mechanism has undergone rigorous safety testing to ensure safe use.
Cost Saving: Since expansion anchors are made of precast concrete elements, while the anchor itself is always in the concrete, the bolts you use to hold it in place can be removed and reused. Thus, it helps you save money.
Compact and Lightweight: Due to its small and lightweight (1.76 lbs)structure, it can be very easy to carry in your bag or box.
Enough Quantity: One hundred expansion anchors inside one package can meet your large-scale work needs at once and save you cost.
Customer Service: We aim to provide quality products and services. If you have any problems, please feel free to contact us. We will reply and solve the problem for you as soon as possible.
Details
Diamond Pattern: This design makes it look not only more beautiful but also helps to increase friction and play a non-slip role and help to grip and hold the insert in the concrete well.
Smooth Surface: The surface of the product is simply brightened and deburred to make it more comfortable to touch and look more lustrous.
How to Use
1. You need to drill a hole of the right size.
2. Then insert the anchor into the drilled hole.
3. Then you need to insert the installation tool (not included) into the anchor bolt.
4. The anchor is then tapped with a hammer to expand the anchor so that it can be embedded in the concrete.
Application
It is suitable for new energy, light industry, petrochemical industry, communication industry, marine industry, machining, medical machinery, construction industry, automotive manufacturing and bridge construction, and suitable for holes with a diameter of 0.307-0.315inch.
Specifications
Material: 304 Stainless Steel
Surface Treatment: Brighten and Deburred
Mounting Type: Drop-in
Number of Pieces: 100
Thread Size: 1/4-20''
Product Outer Circle Diameter: 8mm/0.315in
Perforation Diameter: 7.8-8mm/0.307-0.315in
Package Size: 11*10*3.5cm/4.3*3.9*1.3inch
Gross Weight: 0.8kg/1.76lb
Package Included
100* Expansion Anchors
Notes
- These anchors should only be used in masonry and solid concrete, please do not use them for block or brick-based materials.
- They are typically used with mechanical screws, bolts, and threaded rods(none included).
- Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.


- We maintain high standards of excellence and strive for hundred percent customer satisfaction. Feedback is very important to us. We hope that you contact us immediately before you give neutral or negative feedback, so that we can address your concerns. It is impossible to address issues if we do not know about them!
Custom Bundle | No |
---|---|
Features | Nice and Practical, High Quality Packaging, Long service life |
Brand | Unbranded |
Shipping notice | Can not ship to Puerto Rico,Alaska/Hawaii |
Material | 304 Stainless Steel |
Quantity | 19 |
Unit of Measurement | Inch |
Anchor Type | Drop-In Anchors |
Surface Treatment | Brighten and Deburred |
Mounting Type | Drop-in |
Thread Size | 1/4-20'' |
Product Outer Circle Diameter | 8mm/0.315in |
Perforation Diameter | 7.8-8mm/0.307-0.315in |
Package Size | 11*10*3.5cm/4.3*3.9*1.3inch |


- Custom Bundle: No
- Features: Nice and Practical, High Quality Packaging, Long service life
- Brand: Unbranded
- Shipping notice: Can not ship to Puerto Rico,Alaska/Hawaii
- Material: 304 Stainless Steel
- Quantity: 19
- Unit of Measurement: Inch
- Anchor Type: Drop-In Anchors
- Surface Treatment: Brighten and Deburred
- Mounting Type: Drop-in
- Thread Size: 1/4-20''
- Product Outer Circle Diameter: 8mm/0.315in
- Perforation Diameter: 7.8-8mm/0.307-0.315in
- Package Size: 11*10*3.5cm/4.3*3.9*1.3inch
- UPC: Does not apply
Processing Time
- We process and ship orders Monday through Friday, excluding holidays.
- Most orders are processed within 1–3 business days, depending on product availability.
- Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.
Shipping Coverage
We currently ship to addresses within the United States only.
Products may ship from:
- Our U.S. warehouses, or
- Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).
Each product page clearly displays the “Ships From” location before checkout.
Shipping Methods & Estimated Delivery
Shipping Method | Estimated Delivery | Cost |
---|---|---|
Free Shipping (US) | 5–10 business days | Free, available on eligible items |
Standard Shipping (US to US by Item) | 5–10 business days | $6.50 for the first item, $3.00 each additional |
Standard Shipping (From US Warehouse by Weight) | 3–7 business days | Starts at $6.50, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb. |
Extended Delivery (Ships from Overseas Warehouse) | 10–15 business days | $14.50 for the first item, $4.00 each additional |
Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.
Free Shipping
We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout.
Carriers
We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.
Import Duties & Taxes
All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.
Tracking & Notifications
Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.
You can track your shipment anytime using the Track Your Order page on our website.
Order Changes & Cancellations
If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.
Contact: support@ibspot.com
Item Not Received
If your tracking number shows “Delivered” but you haven’t received your package:
- Check with your local USPS or UPS office.
- Confirm that the shipping address provided was correct.
- If the issue remains unresolved, contact support@ibspot.com for assistance.
Damaged or Lost Parcels
If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.
Customer Support
For any questions about shipping, tracking, or delivery, our customer support team is here to help.
Email: support@ibspot.com
We’re always happy to help.
Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.
Order Cancellation Policy
Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.
How to Request a Cancellation
You can contact us through:
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Email: support@ibspot.com
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Contact Form: Submit a request through our Contact Us page
Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.
Return Policy
We accept returns for most items within 30 days of delivery for a full refund.
To be eligible for a return:
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The item must be unused, in the same condition as received, and in its original packaging.
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A tracking number must be provided to confirm the return shipment.
Non-Returnable Items
Certain products cannot be returned, including:
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Perishable goods (for example, food, flowers, newspapers, magazines)
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Intimate or sanitary goods
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Hazardous materials or flammable liquids/gases
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Gift cards
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Downloadable software
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Some health and personal care items
Partial Refunds (If Applicable)
Partial refunds may be granted in specific situations, such as:
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Books with obvious signs of use
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Opened CDs, DVDs, software, or vinyl records
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Items not in their original condition, damaged, or missing parts not due to our error
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Items returned more than 30 days after delivery
How to Return an Item
To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.
Shipping Cost for Returns
Please contact us before returning any item.
We will provide a free return shipping label.
If a return is sent back without prior contact or without our provided label, we cannot be held responsible for return shipping costs.
For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.
Refund Processing
Once your return is received and inspected:
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In-store returns are refunded to the original form of payment or issued as a gift card.
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Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.
Please allow:
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5–7 business days for the return to reach our Returns Center.
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An additional 3–10 business days for your bank to post the refund to your account.
Damages, Issues & Claims
Please inspect your order immediately upon receipt.
If you receive a defective, damaged, or incorrect item, contact us right away at support@ibspot.com.
We’ll evaluate the issue promptly and make it right.
Product Claims
Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.
Exchanges
We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.
Return Address
IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States
Customer Support
Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.
Email: support@ibspot.com
Contact Form: Contact Us page
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