Hex Brass Jam Nuts

Hex Brass Jam Nuts

Brass hex Jam Nuts ANSI/ASME B18.2.2. Brass Jam Nuts

We are one of the leading suppliers of Brass Jam Nuts Hex jam nuts thin Jam nuts to ANSI standards.

Description: A Jam nuts is a six sided Brass nut with double sided chamfers used in fastening of bolts screws and fasteneing products

Threads: UNC UNEF UNF UNS and also metric BSW BSPP BSPT NPT

Jam nuts are thin hex nuts usually used as a second nut that is “jammed” (tightened) against a full size nut or alone as a thin nut. They are used to “lock” turnbuckles and control linkages, like steering tie rods, after adjustment. Hex is short for hexagon, which means they have six sides. Jam nuts are also known as: Jam nuts are used without lock washers when jammed against another nut, and may be used with lock washers when installed as a single nut.

When used as a “jam” fitting, the jam nut is installed first and contacts the mating surface. The full size nut is installed second and contacts the jam nut.

Q: What are Brass Hex Jam Nuts, and how are they used in fastening applications?
A: Brass Hex Jam Nuts are low-profile, hexagonal nuts designed to be tightened against another nut to create a locking mechanism. These nuts are commonly used in electrical, plumbing, automotive, and industrial applications where vibration resistance, space-saving installation, and secure fastening are required. Unlike standard nuts, a Brass Hex Jam Nut is thinner and functions as a secondary locking device, preventing loosening over time.

Q: What are the key advantages of using Brass Hex Jam Nuts?
A: Brass Hex Jam Nuts offer multiple benefits:
✔ Corrosion Resistance – Ideal for marine, plumbing, and outdoor applications due to their resistance to moisture and oxidation.
✔ Electrically Conductive – Preferred for electrical terminals, grounding, and switchgear connections where conductivity is critical.
✔ Non-Magnetic & Non-Sparking – Suitable for hazardous environments, aerospace, and explosive atmospheres.
✔ Easy Installation – Can be hand-tightened or secured using standard wrenches for a firm hold.
✔ Lightweight & Durable – Provides a strong but lightweight fastening solution for precision engineering.

Q: What materials and compositions are used in manufacturing Brass Hex Jam Nuts?
A: Brass Hex Jam Nuts are typically made from high-quality brass alloys, including:

• UNS C36000 (Free-Cutting Brass) – High machinability and excellent wear resistance.
• UNS C38500 (Architectural Brass) – Enhanced corrosion resistance and strength.
• UNS C46400 (Naval Brass) – Superior marine and chemical resistance, often used in saltwater environments.

Q: What are the dimensional specifications for Brass Hex Jam Nuts?
A: Brass Hex Jam Nuts are manufactured in metric (M6-M30) and imperial (¼”-2”) thread sizes, with the following standard dimensions:
✔ Thread Tolerance – Class 2B/6H for precision fit
✔ Hex Across Flats (AF) Tolerance – ±0.2mm
✔ Nut Height (Thickness) – 1/2 of standard hex nut thickness
✔ Thread Types – UNC, UNF, BSP, NPT, Acme, Metric Coarse & Fine

Q: What are the applications of Brass Hex Jam Nuts?
A: Brass Jam Nuts are widely used across industries, including:
🔹 Electrical & Electronics – Grounding connections, circuit breakers, and panel fasteners.
🔹 Automotive & Machinery – Locking mechanisms for tie rods, suspension systems, and adjustable components.
🔹 Plumbing & HVAC – Compression fittings, pipe couplings, and air-handling units.
🔹 Aerospace & Marine – Non-corrosive fasteners for high-humidity environments.
🔹 Instrumentation & Valves – Precision adjustment in flow control and pressure gauges.

Q: How are Brass Hex Jam Nuts manufactured?
A: Brass Hex Jam Nuts are produced using precision processes to ensure dimensional accuracy and durability:
✔ Cold Forging & Hot Forging – Creates a dense grain structure for enhanced strength.
✔ CNC Machining – Ensures tight tolerances and uniform thread profiles.
✔ Thread Rolling & Tapping – Provides smooth and precise internal threading.
✔ Heat Treatment & Stress Relieving – Improves mechanical properties and resistance to thread wear.

Q: What surface finishes and coatings are available for Brass Hex Jam Nuts?
A: Brass Jam Nuts can be customized with protective coatings and surface treatments:
✅ Nickel Plating – Improves wear resistance and enhances appearance.
✅ Tin Plating – Increases solderability and electrical conductivity.
✅ Passivation & Polishing – Reduces surface oxidation and provides a smooth finish.
✅ Electroless Coating – Prevents tarnishing and extends nut longevity.

Q: What standards and certifications apply to Brass Hex Jam Nuts?
A: Brass Jam Nuts are manufactured to meet industry-specific quality standards, including:
✔ ASTM B16/B134 – Material specification for brass alloys.
✔ ISO 4035 & ASME B18.2.2 – Standard dimensions for hex jam nuts.
✔ RoHS & REACH Compliance – Ensures lead-free, environmentally friendly production.

Q: How do Brass Hex Jam Nuts compare to Stainless Steel Jam Nuts?
A: Brass Jam Nuts vs. Stainless Steel Jam Nuts:
✔ Brass is more corrosion-resistant in wet and marine environments, while stainless steel is better for high-stress applications.
✔ Brass Hex Jam Nuts have better electrical conductivity, making them ideal for electrical grounding.
✔ Stainless steel jam nuts are stronger, but brass nuts are easier to machine and install.

Q: What are the recommended installation and torque values for Brass Hex Jam Nuts?
A: Proper torque ensures a secure and durable fastening:

• M6 Thread → 6 Nm (53 in-lbf)
• M8 Thread → 12 Nm (106 in-lbf)
• M10 Thread → 22 Nm (195 in-lbf)
• M12 Thread → 40 Nm (354 in-lbf)
• 1/2″-13 UNC → 55 Nm (487 in-lbf)
• 5/8″-11 UNC → 100 Nm (885 in-lbf)

Applying anti-seize lubricants is recommended in high-temperature or high-vibration applications.

Q: Why choose a specialized manufacturer for Brass Hex Jam Nuts?
A: Working with a high-quality brass fastener manufacturer ensures:
✔ Precision Machining & Threading – Achieving tight tolerances and smooth finishes.
✔ High-Quality Raw Materials – Using lead-free brass alloys for enhanced safety and compliance.
✔ Scalability for Bulk Orders – OEM supply, custom specifications, and global shipping support.

Would you like custom Brass Hex Jam Nuts for marine, electrical, or industrial applications? Contact us for bulk pricing, CAD drawings, and specifications!