1"-8 Bolts | McMaster-Carr

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30,000 psi to 99,999 psi

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840 Products

Fastening and Joining

Hex Head Screws

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

272 products

Socket Head Screws

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

54 products

Flat Head Screws

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

18 products

Square Head Screws

Turn the large flat sides with a wrench into square holes that stop further rotation

10 products

Set Screws

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

30 products

Shoulder Screws

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

16 products

Threaded Rods

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

186 products

Single-End Studs

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

7 products

Anchors

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

53 products

Spring Plungers

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

23 products

Material Handling

Eyebolts

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

39 products

Hoist Rings

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

34 products

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

3 products

U-Bolts

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

11 products

Fabricating and Machining

Setup Studs

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

17 products

T-Slot Bolts

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

15 products

T-Slot Nuts

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

8 products

Power Transmission

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

16 products

Rod Ends

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

8 products

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

1 product

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

13 products