Suspension and Components› Shocks, Struts, Coil-Overs and Components
QA1 Precision Products, Inc
QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel
SKU: Q00B JNL4S
Easy — 1–2 hours
Description
Part #: JNL4S
QA1 offers steel jam nuts for the industrial market. Steel jam nuts are made with high carbon steel and a protective coating and reference ANSI B18.2.2-1972.
Features:
- Standard and metric options
- Available in steel or aluminum
- Clear anodized
Steel jam nut with left hand 1/4-28 threads with a 7/16 hex.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | QA1 Precision Products, Inc |
| Part Number | Q00B JNL4S |
Videos
QA1’s Bolt-In 9 Inch Rearend Upgrade
QA1 4-Link Rear End Install on a Classic Muscle Car Part 1 | EP 26 RUSTORATIONS 1972 Nova
What Spring Rate Do I Need? - QA1 Quick Tip
QA1 Suspension Review
QA1 DIY 4-Link Kits : What You Need To Know
ROADTRIPING ON QA1 SUSPENSION....IS IT WORTH IT??
Everything You Need To Know About QA1's Classic Mopar Front Suspension System
Big Wheel Full Vehicle Kits | QA1
GM Control Arms: Common Questions and Answers | QA1 Tech
Upgrading to QA1 Front Coil-overs
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy