Does the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel fit my vehicle?

Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.

How long is shipping for QA1?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel?

Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.

Does the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel fit my vehicle?

Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.

How long is shipping for QA1?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel?

Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.

Does the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel fit my vehicle?

Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.

How long is shipping for QA1?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel?

Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.

Does the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel fit my vehicle?

Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.

How long is shipping for QA1?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel?

Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.

Does the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel fit my vehicle?

Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.

How long is shipping for QA1?

Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.

How do I install the QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel?

Most installs are bolt-on with basic hand tools. See manufacturer documentation for torque specs and procedures.

QA1

QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel

Name: QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel
Brand: QA1
SKU: QAPJNL4S
Price: 0.99 USD
Availability: InStock

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QA1

QA1 Jam Nut - 1/4-28 Left Hand - 7/16in Hex 5/32in Wide - Steel

SKU: QAPJNL4S

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About QA1 QA1 engineers high-quality automotive parts and accessories trusted ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches)	Tire Width (mm)	Aspect Ratio	Rim Width (inches)
14	185	65	5.5
15	195	60	6.0
16	205	55	6.5
17	215	50	7.0
18	225	45	7.5
19	235	40	8.0
20	245	35	8.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

225 = Tire width in mm
45 = Aspect ratio (height as % of width)
R17 = Rim diameter in inches

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About QA1

QA1 engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full QA1 lineup with fast shipping and expert fitment support — order with confidence.

QA1 Steel Jam Nut - Versatile and Dependable

Enhance the security of your assemblies with the QA1 Steel Jam Nut. Featuring a 1/4-28 left-hand thread, this nut is designed for precise adjustments and reliable locking. The 7/16 inch hex size provides a comfortable grip for easy installation, while the 5/32 inch width ensures a secure fit without adding excessive bulk.

Engineered for Performance

Made from high-carbon steel, this jam nut offers excellent strength and durability. Its protective coating resists corrosion, making it suitable for a wide range of environments. This component adheres to ANSI B18.2.2-1972 standards, guaranteeing its quality and performance.

Specifications at a Glance:

Thread Size: 1/4-28 Left Hand
Hex Size: 7/16 inch
Width: 5/32 inch
Material: High-Carbon Steel
Finish: Protective coating for durability
Standard: ANSI B18.2.2-1972 compliant

Ideal for automotive applications, machinery, and general hardware needs, the QA1 Steel Jam Nut provides a secure and lasting solution. Trust in QA1's commitment to quality for your critical components. Find this essential fastener and more at GGCRACING.