UNC Reducers | McMaster-Carr

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System of Measurement

Thread Size

Material

Silicone Rubber

Stainless Steel

Threaded Insert Type

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

For Use In

Installed Length

Less than 0.25"

0.25" to 0.499"

10 mm to 19.9 mm

Pipe Size

For Tap Thread Size

End Type

Gender

Shape

Drill Bit Size

For Material Thickness

0.000" to 0.197"

0.010" to 0.075"

0.010" to 0.080"

0.010" to 0.085"

0.015" to 0.050"

0.015" to 0.094"

0.015" to 0.156"

0.015" to 0.437"

0.016" to 0.188"

0.020" to 0.079"

0.020" to 0.085"

0.020" to 0.100"

0.020" to 0.118"

Thread Direction

Hex Length

Thread Length

Nut Type

Helical Insert Style

Hex Size

Finish

Dry Film Lubricated

Neoprene Coated

Phosphate Coated

Tin Zinc Plated

Zinc Yellow-Chromate Plated

Thread Spacing

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

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1,905 Products

Thread Adapters

Male-Female Thread Adapters

Inch-to-NPT Male-Female Hex Thread Adapters with Through Hole

Inch-to-NPT Male-Female Hex Thread Adapters with Through Hole

Connect float rods to float valves with the through hole

Inch-to-NPT Male-Female Hex Thread Adapters

Inch-to-NPT Male-Female Hex Thread Adapters

Connect float balls, float rods, and valves

Other Products

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

Screw-Mount Nuts

Screw-Mount Nuts

Mount with screws, rivets, and nails to add threads to a surface

Studs

Press, weld, or screw in place to add a threaded fastening point

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