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Two black and yellow brass locking air chuck adapters with 12cm rubber hoses

AUTO-VOX Locking Air Chuck Adapter 2pc 284 psi 12cm .3" 32TPI

SKU CH-DMB1-39G0Y

Converts twist-on inflators to a thumb-press lock-on chuck with .3" 32TPI thread, 12 cm hose and 284 psi rating

  • Fit and compatibilityAdhesives; Enamels; Epoxies
  • Certifications and standardsUL Listed/CSA Certified
  • Number of items12 pack
  • Surface finishBlack
  • Color and finishYellow
  • Main materialBrass
  • Lock-on chuck converts twist-on inflators in seconds
  • Thumb-press lock seals without hand-holding during inflation
  • 12 cm brass adapter fits standard .3" 32 TPI Schrader threads
  • 284 psi rated hose and chuck prevent air leaks
  • Two-piece pack equips multiple vehicles or serves as spare

Lock-On Air Chuck Adapter

This AUTO-VOX adapter converts a twist-on inflator connection to a lock-on style for faster tire inflation. The pack includes two brass adapters with a 12 cm rubber hose rated to 284 psi. A thumb-press mechanism secures the chuck to the valve without hand-holding. It suits bicycles, motorcycles and cars.

Upgrade From Screw-On Chucks

The adapter replaces the repetitive action of threading a chuck onto a Schrader valve. The jump is worth it when you inflate multiple tyres regularly and want a secure, leak-free seal in seconds. The fine 0.3" 32 TPI thread matches standard valve stems exactly. Heavy truck use is forbidden by the manufacturer.

Check Your Inflator And Valves

Verify your current inflator hose uses a compatible female twist-on fitting for the adapter's male thread. Confirm the tyre valves are standard Schrader type with the same fine thread pitch. Ensure your working pressure stays below 284 psi for safe operation.

How it compares

Measured against everything we stock in Air Compressor Parts & Inflators, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 87% of the 113 comparable items (median $51.99).

Specifications

Product
Brand nameAUTO-VOX
Part numberInflator adapter 2pc
Color and finishYellow
Size & build
Surface finishBlack
Main materialBrass
Compatibility
Fit and compatibilityAdhesives; Enamels; Epoxies
In the box
Number of items12 pack
Environment & compliance
Certifications and standardsUL Listed/CSA Certified

Questions about this item

What thread size does the locking chuck use to match a standard Schrader valve?

The chuck has a .3" × 32 TPI fine thread that matches a standard Schrader tire valve exactly.

How do you attach the adapter to a twist-on inflator hose and what is the common mistake?

Screw the brass connector onto the inflator's twist-on fitting, then press the thumb lever to lock on the valve; the mistake is forgetting to press the lever and leaving it in the open position.

When should the rubber liner inside the nozzle be replaced?

Replace the liner when you notice air leaking at the valve seat or the rubber feels cracked and hard.

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