M4 Reducers | McMaster-Carr

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System of Measurement

Material

Stainless Steel

Threaded Insert Type

Hex Length

Gender

For Use In

Dissimilar Metals

Stainless Steel

Installed Length

0.25" to 0.499"

10 mm to 19.9 mm

20 mm to 24.9 mm

Thread Pitch

Hex Size

Thread Length

Thread Type

Pitch

For Tap Thread Size

Length

RoHS

Compliant with Exemptions

End Type

REACH

Drill Bit Size

Thread Fit

Metric Class 4H

Metric Class 4H6H

Metric Class 6g

Metric Class 6G

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

DFARS Specialty Metals

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

For Material Thickness

0.000 mm to 5.000 mm

0.25 mm to 5 mm

0.400 mm to 4.000 mm

0.500 mm to 2.000 mm

0.500 mm to 2.500 mm

0.5 mm to 4.2 mm

0.5 mm to 6.6 mm

0.700 mm to 3.300 mm

1.500 mm to 3.000 mm

2.000 mm to 3.300 mm

3.000 mm to 5.500 mm

For Adapting

Export Control Classification Number (ECCN)

For Tap Type

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416 Products

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Rivet Nuts

Add threads to thin panels with access from only one side; also known as blind inserts

Socket Nuts

Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts

Threaded Insert Installation Tools

Threaded Insert Installation Tools

Install helical, key-locking, slotted-drive, and other threaded inserts

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)