Grade 5 Steel Square Head Bolts | McMaster-Carr

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Fastener Strength Grade/Class

Fastener Head Type

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Corrosion-Resistant Coated

Phosphate Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Threading

Partially Threaded

Threaded on Both Ends

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System of Measurement

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Thread Direction

Thread Type

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Square/Phillips

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30,000 psi to 99,999 psi

100,000 psi or greater

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2,401 Products

Fastening and Joining

Hex Head Screws

Hex Head Screws

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

Carriage Bolts

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

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

Set Screws

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

Elevator Bolts

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

Wood Screws

Fasten material to wood or pieces of wood to each other

Tapping Screws

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

Drywall Screws

Fasten panels of drywall to materials such as wood, metal, and drywall

Anchors

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

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Screwdrivers

Tighten and loosen screws

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Screw Starters

Grip and start turning screws that are too small to hold or located in hard-to-reach spots

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

Fabricating and Machining

T-Slot Bolts

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

Setup Studs

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

Power Transmission

Lead Screws and Nuts

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

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