5/16"-24 Screws | McMaster-Carr

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System of Measurement

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Threading

Threaded on Both Ends

Finish

Zinc Yellow-Chromate Plated

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Spring Plunger Driver

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Socket Head Profile

Fastener Strength Grade/Class

Head Height

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Head Diameter

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

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Thread Direction

Right Hand and Left Hand

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ASME Standard

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DIN 912

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Unified Standard Class 1A

Unified Standard Class 2A

Unified Standard Class 2B

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DFARS Specialty Metals

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Export Control Classification Number (ECCN)

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Compliant with Exemptions

Shoulder Length

965 Products

Fastening and Joining

Socket Head Screws

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

92 products

Hex Head Screws

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

152 products

Rounded Head Screws

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

49 products

Flat Head Screws

Fit in countersunk holes for a flush finish

43 products

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

112 products

12-Point Screws

12 contact points handle more torque than a hex head while a flange eliminates the need for a washer

19 products

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

61 products

Thumb Screws

Tighten and loosen by hand without the need for tools

27 products

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

13 products

Thread Adapters

Join threads of a different type, size, and gender

196 products

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

95 products

Weld Nuts

Weld to metal surfaces to add permanent threads

17 products

Rivet Nuts

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

6 products

Spring Plungers

Apply accurate, consistent pressure for positioning, indexing, and ejecting parts

2 products

Fabricating and Machining

Lathe Tool Insert Holder Replacement Parts

Replace clamps, screws, shims, and other parts in lathe tool insert holders

4 products

Gear and Bearing Puller Forcing Screws

Replace forcing screws on gear and bearing pullers

2 products

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

2 products

Building and Machinery Hardware

Knobs

Position, tighten, and secure fixtures and equipment

3 products

Power Transmission

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

59 products

Material Handling

Eyebolts

Route rope through the loop or attach hooks and shackles for lifting

4 products

Measuring and Inspecting

Transfer Punches

Mark the center of an existing hole onto a separate workpiece

2 products