5/16"-18 Reducers | McMaster-Carr

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Material

Stainless Steel

Hex Length

Gender

System of Measurement

Threaded Insert Type

Thread Length

Hex Size

For Adapting

Length

For Use In

Thread Type

UN/UNF (SAE Straight)

Installed Length

0.25" to 0.499"

10 mm to 19.9 mm

For Tap Thread Size

Shape

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

Tensile Strength

Less than 20,000 psi

20,000 psi to 39,999 psi

40,000 psi to 49,999 psi

50,000 psi to 99,999 psi

100,000 psi or greater

Finish

Dry Film Lubricated

Neoprene Coated

Phosphate Coated

Tin Zinc Plated

Zinc Yellow-Chromate Plated

Thread Fit

Metric Class 6g

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Drive Style

Nut Type

For Material Thickness

0.000" to 0.197"

0.015" to 0.156"

0.020" to 0.150"

0.020" to 0.280"

0.02" to 0.165"

0.027" to 0.15"

0.030" to 0.105"

0.030" to 0.125"

0.031" to 0.157"

0.060" to 0.138"

0.079" to 0.157"

0.105" to 0.175"

0.125" to 0.200"

0.138" to 0.236"

Drill Bit Size

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573 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

Screw-Mount Nuts

Screw-Mount Nuts

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

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

Studs

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

Fluid Handling

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

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