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Brownell's Screw Chek'R - U.S. Screw Chek'R Steel

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Identifies Screw

Sizes and thread pitches for

Drill Tap

Sizes for replacement and new

U.s. Thread

Model checks #1 through 5/16"

Hardened Steel

Satin chrome plating

Compact 3"

X 5" size includes instructions

$16.99
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SKU: 080670001

Overview

Built for the shop rather than the field, this screw gauge helps identify screw sizes and thread pitches quickly when fitting, replacing, or matching hardware on gunsmithing and machining projects. It also provides drill and tap sizes, giving you a practical reference for common setup and repair work. The U.S. thread model covers #1 through 5/16" in NC, NS, and NF threads, and the tool comes with instructions for straightforward use. Hardened steel with a satin chrome finish gives it a durable, compact form that belongs in a serious bench kit.

Why Hunters Choose the Brownells

Identifies Screw

Sizes and thread pitches for

Drill Tap

Sizes for replacement and new

U.s. Thread

Model checks #1 through 5/16"

Hardened Steel

Satin chrome plating

Compact 3"

X 5" size fits easily

Key Features

  • Identifies screw sizes and thread pitches for gunsmithing and machining tasks.
  • Provides drill and tap sizes for replacement and new applications.
  • U.S. thread model checks #1 through 5/16" in NC, NS, and NF threads.
  • Hardened steel construction with satin chrome plating.
  • Compact 3" x 5" size includes instructions.

Best Used For

  • Gunsmiths needing quick screw-size and thread-pitch identification in the shop
  • Machinists matching replacement screws for firearms and related hardware
  • Users working with U.S. NC, NS, and NF threads from #1 through 5/16"
  • Anyone wanting drill and tap size guidance alongside thread checking
  • Bench setups where a compact, instructional gauge is preferred

Specifications

Dimensions3" (7.6cm) x 5" (12.7cm)
Instructions IncludedWith instructions
MaterialHardened steel, satin chrome plated
Thread ModelU.S. Thread Model
Thread Sizes Checked#1 through 5/16"
Thread Types CheckedNC, NS, and NF threads

Pros

  • Identifies screw sizes and thread pitches for quick, reliable measurement
  • Provides drill and tap sizes for replacement and new applications
  • U.S. thread model checks #1 through 5/16" in NC, NS, and NF threads
  • Hardened steel construction with satin chrome plating
  • Compact 3" x 5" size fits easily in a workshop setup
  • Includes instructions for straightforward use

Considerations & Trade-offs

  • U.S. thread coverage is limited to #1 through 5/16" in NC, NS, and NF threads, so it is not a universal fit for every fastener size.
  • This is a measuring and identification tool, not a repair solution; it helps confirm thread size and pitch but does not replace the need for matching hardware.
  • The compact 3" x 5" format is workshop-friendly, but it is a dedicated gauge rather than a multi-purpose field tool.
  • Instructions are included, which is helpful for accuracy, but users still need to read and apply the gauge carefully to avoid misidentifying threads.

Suggested Comparisons

  • Gunsmithing tools
  • Thread gauges and screw size identifiers
  • Shop measuring tools
  • Machinist layout and setup tools

Suggested Accessories

  • Gunsmithing screwdriver set
  • Thread pitch gauge
  • Drill and tap set
  • Bench vise

Frequently Asked Questions

What does the Brownell's Screw Chek'R identify?

It identifies screw sizes and thread pitches. The short description also says it gives drill and tap sizes.

Which thread types does the U.S. Thread Model check?

According to the provided specs, the U.S. Thread Model checks #1 through 5/16" in NC, NS, and NF threads.

What are the listed materials and finish?

The specs list hardened steel with a satin chrome plated finish.

What are the dimensions of this tool?

The provided specs list the size as 3" x 5" (7.6 cm x 12.7 cm).

Does it come with instructions?

Yes. The product specs state that it comes with instructions.