40pcs T-Shaped Weld Nuts, 4 Sizes 1/4"-20 5/16"-18 3/8"-16 1/2"-13, Carbon Steel Weld-On Nuts, Thread Weld Nut, for Steel Chassis Mounting Tab, Automotive Repair, Metal Fabrication
$42.69
- $5.99 shipping from United States View details
-
Arrives
- 【Complete Kit】Includes 10pcs each of 1/4"-20, 5/16"-18, 3/8"-16, and 1/2"-13 thread weld nut, totaling 40 pieces. Disc diameters range from 12mm to 21mm, rod diameters from 7.8mm to 17.8mm, covering standard SAE dimensions for versatile use. This all-in-one set fulfills daily requirements for automotive repair, metal fabrication, and chassis mounting, ideal for mechanics, fabricators, and DIY users working on steel chassis mounting tab and weld on tabs projects. It supports multiple jobs at once and eliminates mid-project hardware runs, ensuring efficient and uninterrupted workflow.
- 【Precise Design】Features a T‑shaped stepped structure ensuring accurate positioning and preventing tilting during welding. It provides stronger torque resistance than standard weld nuts for stable, long‑lasting installation. Ideal for steel chassis mounting tab, weld on tabs, and tight, hard‑to‑reach spaces where precise alignment is critical. This engineered structure improves stability in automotive, chassis, and metal fabrication applications.
- 【Superior Weldability】Crafted from heavy-duty, high-strength carbon steel, more durable than low-carbon alternatives. This weld nut delivers excellent conductivity for strong, clean fusion without melting or spattering during welding. CNC precision-machined threads ensure a tight, secure fit that minimizes loosening and stripping, even under high vibration and heavy loads. Unlike ordinary weld nut products, it offers enhanced durability, making it ideal for high-vibration applications like auto suspensions, machinery frames, and steel chassis mounting tab projects.
- 【Wide Application Range】Widely used for vehicle frames, suspension systems, automotive chassis, industrial machinery, furniture casters, shelves, and general metal fabrication projects. It serves as an ideal replacement for standard nuts and welded studs in professional workshops, home repairs, and custom builds. Compatible with steel sheets from 1.5mm to 5mm thick, this versatile set works for both professional shops and DIY garages. One complete set covers most common workshop needs, delivering strong, stable performance across automotive, manufacturing, and household applications.
- 【Welding Instructions】For clean, secure welds with GuandaooL weld nuts, follow these steps. First, clean the welding surface with a wire brush or sandpaper to remove oil, grease, and rust. Then set your welder to medium current and temperature to avoid burn-through or distortion. Position the nut and apply small tack welds around the base to hold it in place and prevent shifting. After welding, lightly grind the area for a smooth finish. Always work in a well-ventilated space and wear proper safety gear, including welding gloves, goggles, and a face shield.
- Free 30-Day Returns
- Full Refund for Damaged or Incorrect Items
- Guaranteed Delivery or Money Back
- Secure Checkout & Fast Support
- 【Complete Kit】Includes 10pcs each of 1/4"-20, 5/16"-18, 3/8"-16, and 1/2"-13 thread weld nut, totaling 40 pieces. Disc diameters range from 12mm to 21mm, rod diameters from 7.8mm to 17.8mm, covering standard SAE dimensions for versatile use. This all-in-one set fulfills daily requirements for automotive repair, metal fabrication, and chassis mounting, ideal for mechanics, fabricators, and DIY users working on steel chassis mounting tab and weld on tabs projects. It supports multiple jobs at once and eliminates mid-project hardware runs, ensuring efficient and uninterrupted workflow.
- 【Precise Design】Features a T‑shaped stepped structure ensuring accurate positioning and preventing tilting during welding. It provides stronger torque resistance than standard weld nuts for stable, long‑lasting installation. Ideal for steel chassis mounting tab, weld on tabs, and tight, hard‑to‑reach spaces where precise alignment is critical. This engineered structure improves stability in automotive, chassis, and metal fabrication applications.
- 【Superior Weldability】Crafted from heavy-duty, high-strength carbon steel, more durable than low-carbon alternatives. This weld nut delivers excellent conductivity for strong, clean fusion without melting or spattering during welding. CNC precision-machined threads ensure a tight, secure fit that minimizes loosening and stripping, even under high vibration and heavy loads. Unlike ordinary weld nut products, it offers enhanced durability, making it ideal for high-vibration applications like auto suspensions, machinery frames, and steel chassis mounting tab projects.
- 【Wide Application Range】Widely used for vehicle frames, suspension systems, automotive chassis, industrial machinery, furniture casters, shelves, and general metal fabrication projects. It serves as an ideal replacement for standard nuts and welded studs in professional workshops, home repairs, and custom builds. Compatible with steel sheets from 1.5mm to 5mm thick, this versatile set works for both professional shops and DIY garages. One complete set covers most common workshop needs, delivering strong, stable performance across automotive, manufacturing, and household applications.
- 【Welding Instructions】For clean, secure welds with GuandaooL weld nuts, follow these steps. First, clean the welding surface with a wire brush or sandpaper to remove oil, grease, and rust. Then set your welder to medium current and temperature to avoid burn-through or distortion. Position the nut and apply small tack welds around the base to hold it in place and prevent shifting. After welding, lightly grind the area for a smooth finish. Always work in a well-ventilated space and wear proper safety gear, including welding gloves, goggles, and a face shield.
(1)Why Choose This Weld Nut Set?
If you've ever bought weld nuts only to find they melt, spatter, or fail under torque, you know the frustration. Many low-carbon steel nuts distort during welding or loosen after just a few months of vibration. That's why GuandaooL engineered a better solution.
(2)What Makes Ours Different?
- Material:High-strength carbon steel (not low-carbon) resists melting, spattering, and bending.
- Design:T-shaped stepped flange prevents pull-through on thin metal and eliminates tilting.
- Threads:CNC-machined for a precision fit that stays tight under heavy loads.
- Sizes:Four most popular SAE sizes in one kit – 1/4", 5/16", 3/8", and 1/2".
(3)Who Is This For?
- Auto repair shops – for chassis, frame, and suspension work
- Metal fabricators – for custom builds, jigs, and fixtures
- HVAC and electrical enclosure manufacturers – for panel mounting
- DIYers and home mechanics – for trailer repairs, furniture, and garage projects
(4)Real-World Applications
Picture this: You're welding a steel chassis mounting tab onto a truck frame. With ordinary nuts, you risk tilt, poor fusion, or a thread that strips when you torque the bolt. Our T-shaped weld nut sits flat, welds cleanly, and holds up to 70N·m of torque on the 1/2" size – no wobble, no loosening.
(5)Weldability You Can Rely On
Thanks to the high-carbon steel composition, these nuts provide excellent electrical conductivity. The result is a deep, clean fusion without the messy spatter that often ruins low-carbon alternatives.
(6)What's in the Bag?
- 10 x 1/4"-20 weld nuts
- 10 x 5/16"-18 weld nuts
- 10 x 3/8"-16 weld nuts
- 10 x 1/2"-13 weld nuts
- Total: 40 pieces
GuandaooL tests every batch for thread accuracy and weld consistency. If you're not completely satisfied, contact us – we'll make it right.
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 | $5.95 for the first item, $3.00 each additional |
| Standard Shipping (From US Warehouse by Weight) | 3–7 business days | Starts at $5.95, 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) | 10–20 business days | $14.99 for the first item, $2.00 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:
- Email: support@ibspot.com
- 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:
- The item must be unused, in the same condition as received, and in its original packaging.
- A tracking number must be provided to confirm the return shipment.
Non-Returnable Items
Certain products cannot be returned, including:
- Perishable goods (for example, food, flowers, newspapers, magazines)
- Intimate or sanitary goods
- Hazardous materials or flammable liquids/gases
- Gift cards
- Downloadable software
- Some health and personal care items
Partial Refunds (If Applicable)
Partial refunds may be granted in specific situations, such as:
- Books with obvious signs of use
- Opened CDs, DVDs, software, or vinyl records
- Items not in their original condition, damaged, or missing parts not due to our error
- 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 may provide a return shipping label for your return. If the return is due to our error, such as receiving the wrong item, a damaged item, or a defective product, we will cover the return shipping cost.
If the return is due to the customer’s reason, such as ordering the wrong item, changing your mind, or no longer needing the item, the original shipping fee and the return label fee will be deducted from your refund amount.
If a return is sent back without prior contact or without using our provided label, we cannot be held responsible for any return shipping costs or delivery issues.
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:
- In-store returns are refunded to the original form of payment or issued as a gift card.
- 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:
- 5–7 business days for the return to reach our Returns Center.
- 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
Oops!
Sorry, it looks like some products are not available in selected quantity.