Specialty Fasteners | McMaster-Carr

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1,913 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

12-Point Screws

12-Point Screws

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

Elevator Bolts

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

Studs

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

T-Bolts

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

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

Square Head Screws

Square Head Screws

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

Plow Bolts

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

Hold-Down Bolts

Hold-Down Bolts

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

Pentagon Head Screws

Pentagon Head Screws

Create a tamper-resistant joint with a head than can only be removed with a 5-point socket

Anchors

Secure structural joints in concrete, brick, and other building materials

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)