Weld On Nuts 1/2-13 Long 4pk ALL18552
* Provides a strong attachment point for brackets and accessories.
* Ideal for situations where the back side of a fastener is inaccessible.
* Features 1/2-13 threading for specific applications.
* Comes in a convenient 4-pack.
Professional-Grade Chassis Fabrication: Allstar Performance Weld-On Nuts
When you are deep into a custom air-cooled VW build, whether it is a high-performance Sand Rail, a rugged Baja Bug, or a full-blown tube chassis drag car, the strength of your mounting points is non-negotiable. These Allstar Performance 1/2-13 Long Weld-On Nuts are the industry standard for fabricators who demand a permanent, high-strength solution for attaching components to a chassis. Instead of struggling with traditional nuts and washers in tight spaces where a wrench won''t reach, these steel bungs are designed to be welded directly into a pre-drilled hole. This creates a fixed, threaded mounting point that becomes an integral part of the vehicle''s structure. By utilizing these weld-on nuts, you eliminate the need for a "backup" wrench, allowing for one-handed installation and removal of skid plates, suspension limit straps, seat mounts, and custom engine cages. This level of convenience is a game-changer during track-side repairs or routine maintenance in the shop.
Engineering excellence is at the heart of these Allstar Performance fabrication components. These nuts are manufactured from high-quality, weldable mild steel, ensuring excellent penetration and a secure bond to your frame tubing or plate steel. The "long" profile of these nuts is particularly beneficial for high-stress applications, as it provides significantly more thread engagement than a standard hex nut. This added depth distributes the load across more surface area of the 1/2-13 bolt, drastically reducing the risk of stripped threads or fastener failure under the extreme vibrations and jarring impacts of off-road racing. Whether you are mounting heavy-duty accessories or critical structural braces, these weld-on nuts provide the professional finish and structural integrity that separates a backyard project from a master-built machine. This 4-pack gives you the essential hardware needed to tackle major sections of your fabrication project with confidence.
Comprehensive Fitment and Application Guide
While these are universal fabrication components, they are most commonly utilized in the following air-cooled VW and off-road applications:
- VW Dune Buggies & Sand Rails: Essential for mounting body panels, shift boxes, and fuel tank straps to 1.50-inch or 1.75-inch tubing.
- Baja Bugs: Ideal for securing custom front and rear bumpers, spare tire carriers, and heavy-duty skid plates.
- VW Type 1 Beetle: Used in chassis stiffening projects and custom roll cage installations for drag racing or autocross.
- VW Type 2 Bus: Perfect for custom interior cabinetry mounts or reinforced suspension pivot points on lowered or lifted buses.
- Manx-Style Buggies: Used to create secure mounting points on the fiberglass body support subframes.
- Custom Off-Road Vehicles: Universal application for any vehicle utilizing a tubular chassis or plate steel fabrication.
Technical Specifications and Dimensions
Allstar Performance ensures these components meet the rigorous demands of professional motorsports. Here are the technical details for the ALL18552 kit:
- Thread Size: 1/2 inch - 13 (UNC Coarse Thread).
- Quantity: 4 Pieces per package.
- Material: High-quality weldable mild steel.
- Body Style: Round, weld-in insert style with a stabilizing shoulder.
- Length Category: Long version for maximum thread engagement and load distribution.
- Finish: Natural steel (requires cleaning/de-greasing before welding).
- Manufacturer Part Number: ALL18552.
Pro Tips for the Master Fabricator
Pro Tip #1: Shield the Threads During Welding. One of the most common mistakes when installing weld-on nuts is getting weld spatter inside the internal threads. To prevent this, thread an old, sacrificial 1/2-13 bolt (preferably coated in a bit of anti-seize) into the nut before you start welding. This protects the threads from stray sparks. Once the weld has cooled, simply back the bolt out. Never use your final, high-grade hardware for this step, as the heat can affect the bolt''s temper.
Pro Tip #2: Achieve Proper Recess and Penetration. For the cleanest look and strongest bond, use a step-drill bit to create a hole that allows the nut to sit flush against the tubing or plate. Ensure you grind the area around the hole down to bare, shiny metal to remove any mill scale or rust. Use a high-heat setting on your TIG or MIG welder to ensure the weld "puddles" into both the nut and the chassis material, creating a singular, monolithic piece of steel that won''t crack under the stress of off-road use.
Pro Tip #3: Plan for Powder Coating or Paint. If you plan on powder coating your frame after fabrication, remember that the powder will add thickness to the threads if the holes are left open. It is a smart move to "chase" the threads with a 1/2-13 tap after the coating process is complete. This ensures your bolts thread in smoothly without binding. If you are painting the frame yourself, a small plug of foam or a silicone cap placed inside the nut will keep the internal threads clean and ready for assembly.
SHIPPING: Free shipping on all orders exceeding $74.99. All orders under $74.99 will be shipped for a flat fee of $9.99 Or $6.99 for orders less than $24.99. Shipping rates are for the 48 continental United States. Areas outside the 48 states, shipping will be calculated using the best shipping price available. We reserve the right to use any shipping carrier unless the order has had a upgrade. If any sales or price matching discount drops you below the free shipping amount, shipping will be charged.
We accept the following payment methods:
To replace this text with your store's actual info on payment methods, go to "Catalog -> Product tabs" and edit the Payment methods page.
RETURNS: Returns will be accepted within 30 days of receipt. If the item was shipped via Free Shipping, the shipping charges may be deducted from your return. Please print the original invoice and include it with the return. No returns on custom built or special ordered merchandise.
PLEASE NOTE: We do not pay for return shipping unless the item received is incorrect. If you have ordered the wrong part, we are happy to take it back but we do not cover the shipping cost.
Customers who bought this product also bought
- Regular Product
- Regular Product
ALL18550
Weld On Nuts 3/8-16 Long 4pk ALL18550 Only 37 left in stock.In Stock, Ready To Ship
- Regular Product
ALL18546
Weld On Nuts 1/4-20 4pk ALL185 Only 82 left in stock.In Stock, Ready To Ship
- Regular Product
B658713
Flanged Spring Plate Grommets, 1-7/8 ID, 2-1/4 OD, Pair Only 1 left in stock.In Stock, Ready To Ship
- Regular Product
111-809-169
Battery Tray, for Beetle 55-77, Super Beetle 71-79Special Order Ships in 2-3 Weeks
Customers who viewed this product also bought
- Regular Product
ALL18550
Weld On Nuts 3/8-16 Long 4pk ALL18550 Only 37 left in stock.In Stock, Ready To Ship
- Regular Product
ALL18546
Weld On Nuts 1/4-20 4pk ALL185 Only 82 left in stock.In Stock, Ready To Ship
- Regular Product
111-809-169
Battery Tray, for Beetle 55-77, Super Beetle 71-79Special Order Ships in 2-3 Weeks
- Regular Product
FAB-3002
Shock Boss, 1/2 Unthreaded Holle, 1-3/4 Long, Each Only 21 left in stock.In Stock, Ready To Ship
- Regular Product
FAB-3005
Shock Boss, 1/2 Threaded Hole, 2 Long, Each Only 12 left in stock.In Stock, Ready To Ship










