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Senco

Senco A20 Air Nailer Gray 3/8 in NPT Aluminum

SKU CH-4KY0-R0S3Q

Air-powered nailer drives 2 in to 7 in round-head nails at 50 to 125 psi with a 3/8 in NPT inlet

  • Air-powered convenience with 3 scfm consumption
  • Operates at 50 to 125 psi air pressure range
  • Accepts 2 in to 7 in full-round head nails
  • Handles .113 in to .148 in shank diameters
  • 3/8 in NPT inlet for standard hose connection

Air-powered nailer for framing and sheathing

The Senco A20 is an air-powered nail gun built for driving full-round-head nails from 2 in to 7 in length. It accepts 8d and 12d penny sizes with shank diameters between .113 in and .148 in. The tool operates on compressed air at 50 to 125 psi and consumes 3 scfm during use.

Aluminum body with top exhaust and 3/8 in NPT inlet

The aluminum housing keeps weight down while the top-mounted exhaust directs air away from the work surface. A 3/8 in NPT air inlet and a minimum 3/8 in hose size provide a secure connection to the supply line. Bump-fire mode allows rapid placement without a sequential trigger pull.

Verify compressor output

Confirm your compressor can deliver at least 50 psi and up to 125 psi at the tool with sufficient flow for 3 scfm consumption. Ensure the nails you plan to use match the 2 in to 7 in length range, full round head style, and .113 in to .148 in shank diameter. The nailer has no depth adjustment, so sinking depth is controlled solely by air pressure.

Highlights

  • Air-powered convenience with 3 scfm consumption
  • Operates at 50 to 125 psi air pressure range
  • Accepts 2 in to 7 in full-round head nails
  • Handles .113 in to .148 in shank diameters
  • 3/8 in NPT inlet for standard hose connection

Specifications

BrandSENCO

Questions about this item

What does the 3/8 in NPT air inlet mean for compressor compatibility?

The 3/8 in NPT inlet requires a matching coupler and a minimum 3/8 in hose to deliver up to 3 scfm at 50 to 125 psi.

What nail dimensions must I buy for the Senco A20?

Use full-round-head nails 2 in to 7 in long, 8d or 12d penny size, with a shank diameter between .113 in and .148 in.

How do I set the operating pressure and avoid the common setup error?

Connect air, then adjust the regulator to 50–125 psi; the frequent mistake is running the tool below 50 psi, which prevents full driving power.

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