5/16"-32 Fasteners | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

Threading

Threaded on Both Ends

Fastener Head Type

Thread Spacing

Drive Style

Thread Length

REACH

Nut Type

Width

Hex Length

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

Yes

Export Control Classification Number (ECCN)

EAR99

RoHS

Compliant

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Thread Fit

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Gender

Female

Male

Fastener Strength Grade/Class

Specifications Met

Hardness

Finish

Zinc Yellow-Chromate Plated

Thread Type

Thread Direction

171 Products

Fastening and Joining

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

5 products

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

4 products

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

3 products

Hex Nuts

Handle most general fastening needs

2 products

Panel Nuts

Extremely thin for tight spots such as electrical panels; also known as dress nuts

8 products

Thread Adapters

Join threads of a different type, size, and gender

147 products

Threaded Insert Installation Tools

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

1 product

Fabricating and Machining

Lathe Tool Insert Holder Clamp Screws

Replace the clamp screws on your lathe tool insert holder

1 product