3/8" Nutdrivers | McMaster-Carr

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System of Measurement

Drive Size

Drive Style

External 12-Point

External Square

Tamper-Resistant Torx

Grip Style

Overall Length

15/16" to 1 1/8"

1 3/8" to 1 5/8"

1 1/2" to 2 1/4"

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Driver Style

Handle Color

Bolt Clearance

1 9/16" to 3 1/8"

Bolt Clearance Type

Shank Type

Quick-Change Hex

Square Drive Size

Fastener-Holding Mechanism

Spring-Loaded Ball

Material

Aluminum Bronze

Stainless Steel

Thread Size

4-40 to 5/16"-32

Number of Pieces

Container Type

Fabric Roll-Up Pouch

Metal Clip Rail

Plastic Clip Rail

Color

Length

15/16" to 1 1/8"

1 3/8" to 1 5/8"

1 1/2" to 2 1/4"

Socket Shape

Performance

Changeable Head

Changeable Shaft

Corrosion Resistant

Electrically Insulating

Extra Clearance

Extra-Strong Grip

Fastener Holding

Tight Clearance

Finish

Phosphate Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Nitride (TiN) Coated

REACH

DFARS Specialty Metals

RoHS

Export Control Classification Number (ECCN)

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266 Products

Fastening and Joining

Nutdrivers

Tighten and loosen nuts and bolts

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Nut Starters

Begin turning nuts in hard-to-reach spots

Screwdriver/Nutdrivers

Screwdriver/Nutdrivers

Quickly switch between driving screws and driving nuts

Bit Sockets

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

Sockets

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

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Box Wrenches

Grip all sides of a fastener to prevent slipping

Wrench Heads

Attach to your ratchet wrench and socket extension to turn fasteners where clearance is limited

Socket Wrenches

Socket Wrenches

Apply torque to turn nuts, bolts, and other fasteners without rounding the heads

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

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