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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
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Description
QA1 Jam Nut - 1/2-20 Left Hand - 3/4in Hex 5/16in Wide - SteelThe QA1 Jam Nut JNL8S is a high quality steel locking nut designed specifically for performance and durability in demanding automotive applications. Featuring a 1 2 20 thread size with left hand threading, this jam nut ensures secure fastening in setups where regular nuts might loosen due to vibrations or torque. Its 3 4 inch hex shape combined with a 5 16 inch width offers easy wrench engagement and reliable installation. Crafted from robust steel,
The QA1 Jam Nut JNL8S is a high-quality steel locking nut designed specifically for performance and durability in demanding automotive applications.Featuring a 1/2-20 thread size with left-hand threading, this jam nut ensures secure fastening in setups where regular nuts might loosen due to vibrations or torque.
Its 3/4 inch hex shape combined with a 5/16 inch width offers easy wrench engagement and reliable installation. Crafted from robust steel, the nut provides excellent strength and resistance to wear, making it suitable for engine components and hardware kits that require dependable fastening.
This jam nut suits enthusiasts working on engines, hot rods, or custom builds who demand trustworthy hardware that withstands the rigors of motorsports and tuning. Backed by the reputable QA1 brand, it's a smart choice for both hobbyists and professional workshops aiming for reliability without compromise.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Terrific Tire Plugs!
Size: 72PCS, Size: 72PCS
Worked perfect to seal my tire hole. Came just in time. Excellent price for all these plugs. Easy to use. Screws right in to the hole.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Works as advertised
Size: 72PCS
Simple and effective. Fixed a slow leak in 2 minutes. The case is nice and compact, fits anywhere. Good quality.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Reliable Emergency Tire Repair Kit – Easy and Effective Fix
Size: 72PCS, Size: 72PCS
I’ve used this tire repair kit for punctures, and it worked really well in an emergency situation. It helped me fix a leak quickly without needing to call roadside assistance.
The kit is easy to use and comes with everything needed for a basic repair. The instructions are simple, and even without much experience, I was able to get the tire sealed properly.
What I like most is how fast it works. It allowed me to get back on the road in a short time and held the air pressure well until I could get a permanent repair done.
Overall, this is a very useful kit to keep in the car for unexpected flat tires. It’s practical, affordable, and gives peace of mind when traveling.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Item perfect
Size: 72PCS
Fat shipping, item as discribed
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Amazing kit, it has everything you need!
I never really thought about keeping a tire repair kit in my car, until I had a flat in the middle of nowhere. That’s when I got this 54-piece Flat Tire Repair Kit with Air Compressor, and now I wouldn’t travel without it.
The kit has everything you need to patch up a flat quickly and get back on the road, and it’s surprisingly easy to use, even for someone like me who’s never done it before. The air compressor works fast, inflating my tire in just a few minutes, and the tools feel solid and well-made. Value for the money: 10/10
Honestly, this little kit (amazing size) saved me from a stressful situation, and now I tell everyone: just keep one in your car, you never know when you’ll need it!
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Reviewed in the United States on March 6, 2025