1/2"-20 Reducers | McMaster-Carr

Filter by

System of Measurement

Material

Stainless Steel

Gender

Hex Length

Threaded Insert Type

For Tap Thread Size

Thread Length

Hex Size

For Adapting

Thread Type

UN/UNF (SAE 45°)

Tensile Strength

40,000 psi to 49,999 psi

50,000 psi to 99,999 psi

100,000 psi or greater

Shape

DFARS Specialty Metals

REACH

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

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

Thread Fit

Metric Class 6g

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3B

Drive Style

Installed Length

0.25" to 0.499"

Pitch

Specifications Met

Length

For Tap Type

Hardness

How can we improve?

312 Products

Thread Adapters

Male-Female Thread Adapters

Inch-to-Inch Male-Female Hex Thread Adapters

Inch-to-Inch Male-Female Hex Thread Adapters

Change thread size and spacing

Inch-to-Metric Male-Female Hex Thread Adapters

Inch-to-Metric Male-Female Hex Thread Adapters

Change inch threads to metric

Female Thread Adapters

Inch-to-Inch Female Hex Thread Adapters

Inch-to-Inch Female Hex Thread Adapters

Join two male-threaded parts with dissimilar inch thread sizes

Inch-to-Metric Female Hex Thread Adapters

Inch-to-Metric Female Hex Thread Adapters

Join two male-threaded parts with inch and metric thread sizes

Male Thread Adapters

Inch-to-Inch Male Hex Thread Adapters

Inch-to-Inch Male Hex Thread Adapters

Join two female-threaded parts with dissimilar inch thread sizes

Other Products

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Tube Straights

Join lengths of tube to send contents in one direction

Threaded Insert Installation Tools

Threaded Insert Installation Tools

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

Socket Nuts

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

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

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