Button Head Bolts 1/4-20 x 1/2in 25pk SS ALL16924

OVERVIEW

When you''re building or restoring a high-performance air-cooled VW, the difference between a garage project and a professional-grade build is often found in the hardware. These Allstar Performance Button Head Bolts are the gold standard for fabricators who demand both aesthetic appeal and structural integrity. Featuring a low-profile, rounded button head, these fasteners provide a sleek, streamlined look that is perfect for visible areas where a standard hex bolt would look bulky or out of place. Whether you are mounting custom interior panels in a Type 1 Beetle, securing light brackets on a Baja Bug, or finalizing the dash assembly on a custom sand rail, these 1/4-20 x 1/2-inch bolts offer the perfect blend of clearance and clamping force. The internal hex drive allows for high torque application without the risk of slipping that often plagues Phillips or flat-head screws, making them a favorite in the off-road and racing communities.

Durability is non-negotiable when you are dealing with the vibration and environmental stress common to the VW scene. These bolts are manufactured from high-grade stainless steel, ensuring they will never rust, tea-stain, or corrode, even if your vehicle spends its weekends at the beach or in the mud. The natural stainless finish provides a bright, clean look that complements polished aluminum and chrome components perfectly. By choosing this 25-pack, you are ensuring that your shop is stocked with consistent, high-quality hardware that meets the rigorous demands of Allstar Performance engineering. Don''t settle for hardware store grade fasteners that will strip or rust after one season; invest in the stainless steel reliability that professional air-cooled specialists trust for their most critical fabrication projects.

FITMENT

While these are universal fabrication fasteners, they are most commonly utilized in the following air-cooled VW and off-road applications:

• VW Type 1 Beetle: Ideal for custom fender mounting, running board accents, and interior trim panels.
• VW Type 2 Bus (Split & Bay): Perfect for securing interior cabinetry, door cards, and overhead ventilation covers.
• VW Type 3 (Squareback, Fastback, Notchback): Used for engine tin accents and custom luggage area panels.
• Meyer''s Manx & Dune Buggies: The preferred choice for mounting fiberglass body tubs to the chassis and securing windshield frames.
• Baja Bugs & Sand Rails: Essential for attaching aluminum skid plates, roof panels, and electronics mounting plates.
• Custom Fabrication: Compatible with any 1/4-20 threaded bung, nut, or tapped hole.

SPECS

Review the technical specifications below to ensure these fasteners meet your specific engineering requirements:

• Thread Size: 1/4-20 (UNC)
• Length: 1/2 Inch (measured from under the head to the end of the threads)
• Head Style: Button Head (Low Profile)
• Drive Type: Internal Hex (Allen)
• Material: High-Grade Stainless Steel
• Finish: Natural / Polished Stainless
• Quantity: 25 Pieces Per Pack
• Manufacturer: Allstar Performance
• Part Number: ALL16924

PRO TIPS

1. Always Use Anti-Seize on Stainless Threads

One of the most common mistakes when working with stainless steel hardware is failing to use a thread lubricant. Stainless steel has a tendency to "gall" or cold-weld itself to the mating threads, especially when using stainless nuts or threaded bungs. To prevent the bolt from seizing and snapping during installation or future removal, apply a small dab of nickel or silver-based anti-seize to the threads. This is especially critical on air-cooled VWs where engine heat and road salt can accelerate thread binding. Taking this extra step ensures that your hardware remains serviceable for years to come.

2. Verify Hex Key Fitment to Prevent Stripping

Button head bolts have a shallower drive socket than standard socket head cap screws. Because of this, it is vital that you use a high-quality, sharp-edged Allen wrench or hex bit that fits perfectly into the socket. If the tool is worn or the wrong size (even by a fraction), you risk rounding out the internal hex. Always ensure the tool is fully seated at the bottom of the drive before applying torque. For professional results, we recommend using a T-handle hex driver to maintain even pressure and alignment while tightening these fasteners into your custom panels.

3. Use Finishing Washers for Fiberglass Applications

If you are using these Allstar Performance bolts to secure a fiberglass body, such as on a Meyer''s Manx or a Baja Bug kit, consider pairing them with stainless steel finishing washers (also known as cup washers). While the button head provides a decent surface area, fiberglass can be prone to cracking under localized pressure. A finishing washer helps distribute the load over a wider area and adds an extra layer of "show-car" polish to your build. This combination not only protects your expensive bodywork but also ensures the bolts won''t pull through the material during high-vibration off-road use.