Specialty Bolts | McMaster-Carr

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100,000 psi to 119,999 psi

120,000 psi to 139,999 psi

140,000 psi to 159,999 psi

160,000 psi or greater

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DFARS Specialty Metals

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Export Control Classification Number (ECCN)

EAR99

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4,478 Products

Fastening and Joining

Carriage Bolts

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

877 products

Elevator Bolts

Create a flush joint to allow movement in tight spaces such as grain elevators and belting systems

187 products

Flat Head Screws

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

1,052 products

Set Screws

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

251 products

Square Head Screws

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

145 products

Hex Head Screws

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

740 products

Plow Bolts

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

50 products

Shoulder Screws

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

82 products

12-Point Screws

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

155 products

Wood Screws

Fasten material to wood or pieces of wood to each other

75 products

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

32 products

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

34 products

Studs

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

55 products

Captive Panel Screws

Secure panels and enclosures while still having access to them

33 products

T-Bolts

Turn by hand for easy fastening, use as a handle, or attach as a point for straps and clamps

21 products

Hold-Down Bolts

Hold material under the bent head while the other end is tightened down with a nut

51 products

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

347 products

Anchors

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

36 products

Fabricating and Machining

T-Slot Bolts

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

232 products

T-Slot Cleaners

Scrape debris out of machine table T-slots

2 products