Fasteners
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Machine Screws
Uniform diameter the entire length of the shaft with a flat end.
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Self-Tapping Screws
Screws that create their own thread but typically requires a pilot hole. Also known as sheet metal screws.
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Self-Drilling Screws
Screws that drill, tap, and fasten in a single operation. Also known as TEK screws.
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Lag Screws
Very strong fasteners that are generally used to connect heavy materials such as lumber. Also known as lag bolts.
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U-Drive Screws
Screws that are hammered into the material like nails but offers the holding power of fasteners. Also known as Type U drive screws or hammer screws.
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Dowel Screws
Headless fasteners with a lag thread at both ends. Also known as hanger bolts.
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Sheet Metal Screws
Screws used to join thin metal together or metal to other materials.
- Thread Rolling Screws
- Wood Screws
- Weld Screws
- Thread Cutting Screws
- Wing Screws
- Thumb Screws
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Hex Cap Screws & Hex Bolts
Bolts with hexagonal heads used in construction and machine assemblies.
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Carriage Bolts
Bolts with square or ribbed neck that prevents the bolt from turning when the nut is installed or removed.
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Structural Bolts & Heavy Hex Bolts
Bolts that meet specific ASTM standards that are rated for high load applications to make structural connections.
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Flange Bolts
Bolts with washer like flange underneath the head of the screw. Also known as washer bolts.
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Hanger Bolts
Bolt that is threaded on both ends to add an external thread to a wooden surface.
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Machine Bolts
Bolt that can be used with hex nuts or tapped holes.
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Plow Bolts
Heavy duty bolts that sit flush with the surface and has a square neck to prevent turning when installing the nut.
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Square Head Bolts
Square head design that makes it easy for the operator to grip the bolt when installing the nut.
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Elevator Bolts
Bolts with thin and flat head to sit flush against the surface to prevent obstructions within confined spaces.
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Timber Bolts
Bolts with an oversized head and fins underneath the head. Commonly used in wood and marine applications.
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Step Bolts
Bolts with wide round head and square neck. Commonly used as climbing steps in utitlity poles and towers.