7/8"-9 Fasteners | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

Fastener Strength Grade/Class

Threading

Threaded on Both Ends

Threaded on One End

Finish

Black Oxide

Cadmium Plated

Cadmium Yellow-Chromate Plated

Galvanized

Hot-Dipped Galvanized

Zinc Yellow-Chromate Plated

Fastener Head Type

Thread Spacing

Thread Type

Specifications Met

Thread Direction

Head Width

Nut Type

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Thread Fit

ASME Interference Class 5

Metric Class 6H

Unified Standard Class 1A

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

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

Thread Length

Export Control Classification Number (ECCN)

2B999

EAR99

RoHS

Compliant

Compliant with Exemptions

REACH

Performance

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Grip Length

Drive Style

Height

864 Products

Fastening and Joining

Hex Head Screws

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

245 products

Socket Head Screws

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

41 products

Set Screws

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

22 products

Shoulder Screws

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

22 products

Carriage Bolts

A smooth head provides a finished look while a square neck keeps the bolt in place when using a nut

1 product

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

7 products

Plow Bolts

The head sits flush with countersunk holes while the bolt stays in place when tightening a nut

3 products

Hex Nuts

Handle most general fastening needs

64 products

Locknuts

Hold fasteners in place to prevent loosening from vibration

31 products

Cap Nuts

Cover and protect threads while adding a finished look; also known as acorn nuts

7 products

Flange Nuts

The flange distributes pressure, so you don't need a washer

8 products

Split Nuts

Swivel to attach at any point on a threaded rod for quick installation

1 product

Coupling Nuts

Connect and extend threaded rods

13 products

Socket Nuts

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

1 product

Square Nuts

Flat sides won’t spin in channels and square holes

4 products

Threaded Rods

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

139 products

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

26 products

Thread Adapters

Join threads of a different type, size, and gender

13 products

Threaded Inserts

Create new threads or repair stripped threads

37 products

Single-End Studs

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

4 products

Threaded Insert Installation Tools

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

8 products

Fabricating and Machining

T-Slot Nuts

Combine with setup studs or bolts to mount fixtures to machine tables

12 products

Fixture Clamps

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

1 product

T-Slot Bolts

Secure clamps and workpieces to machine tables with quicker setup than a T-slot nut and stud

10 products

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

15 products

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

3 products

C-Clamps

Temporarily secure workpieces together or to a work surface

1 product

Material Handling

Hoist Rings

Pivot to resist stress that would bend or break an eyebolt when lifting at an angle

17 products

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

3 products

Eyebolts

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

31 products

Turnbuckles

Twist the body or end fittings to adjust the length and tension of attached rope and chain

27 products

Hooks

Lift, hang, and bind loads with rope and chain

4 products

U-Bolts

Anchor heavy pipe, tube, and conduit; stronger than routing clamps and hangers

36 products

U-Bolt Plates

Reinforce mounted U-bolts for a more secure hold

12 products

Routing Clamps

Secure routed lines of pipe, tubing, and conduit

3 products

Power Transmission

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

9 products

Building and Machinery Hardware

Strut Channel Nuts

Fasten on threaded rod to connect components to strut channel

1 product