Allen Bit Sockets | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Square Drive Size Square Drive Size

	For Drive Style For Drive Style

	Size Size

	Socket Style Socket Style


Bit	Standard

Offset	Flex

	Tip Style Tip Style


Standard	Ball

	Overall Length Overall Length

	Individual/Set Individual/Set

Individual

Set

	Number of Pieces Number of Pieces

4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
24
25
26
27
28
29
32
34
40
75

	Drive Type Drive Type

Manual

Impact

Nonimpact Power

	Container Type Container Type

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Finish Finish

Zinc-Phosphate Coated

	Material Material

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Bit Replaceable Bit Replaceable

Yes

	Bolt Clearance Style Bolt Clearance Style


Standard	Deep

Bolt Through	Extra Deep

Shallow

	Socket Shape Socket Shape


4-Point	6-Point

12-Point	Universal

	OD OD

	Maximum Access Angle Maximum Access Angle

15°

20°

25°

	Compatible Retaining Ring ID Compatible Retaining Ring ID

	Nut Clearance Depth Nut Clearance Depth

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2,341 Products

Bit Sockets

Hex Bit Sockets

Electrical-Insulating Hex Bit Sockets

Insulated to protect against accidental contact with live electrical circuits, these sockets are tested to 1,000 volts to meet ASTM F1505 and IEC 60900.

Extended-Reach Hex Bit Sockets

Extra-long bits allow access to hard-to-reach fasteners.

Stubby Hex Bit Sockets

The short bit on these sockets fits in spaces where height clearance is limited.

Extended-Reach Ball-End Hex Bit Sockets

Extra-long bits allow access to hard-to-reach fasteners.

Ball-End Hex Bit Sockets

The ball end allows angled entry when you don't have exact alignment between the socket bit and fastener.

Tamper-Resistant Hex Bit Sockets

These sockets are also known as pin-in-hex or pin-in-socket bits.

Tight-Clearance Offset Sockets

Adjustable Tight-Clearance Offset Sockets

Turn the knob to adjust the jaws and fit a range of fastener sizes.

Tight-Clearance Offset Sockets

Often used with an extension, these sockets turn fasteners and fittings in obstructed areas that a regular socket can't reach. They are also known as crowfoot wrenches.

Ratcheting Box-End Tight-Clearance Offset Sockets

A ratchet mechanism allows you to turn fasteners without removing and repositioning the socket.

Box-End Tight-Clearance Offset Sockets

Make maximum contact with all sides of a fastener to reduce slipping. These sockets are also known as torque adapters.

Secure-Grip Tight-Clearance Offset Sockets

The opening shape makes more contact with fasteners for a better grip than standard open-end sockets. Also known as flare-nut or line wrench sockets, they're often used with flared tube fittings and fuel and hydraulic lines.

Sockets

6-Point Sockets

Nonsparking 6-Point Sockets

Made of aluminum-bronze, these sockets satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Stubby 6-Point Sockets

These short sockets fit spaces where height clearance is limited.

Extra-Deep 6-Point Sockets

Extra length allows access to fasteners on long bolts.

6-Point Flex Sockets

Pivot the head to access fasteners from an angle.

Nonmarring 6-Point Sockets

With a plastic insert, these sockets firmly grip hex nuts and bolts without rounding them or scratching highly polished finishes.

Universal-Fit Sockets

Turn many sizes of square, hex, and 8-point fasteners with one socket. Place over the fastener and 54 pins move to grip it securely.

12-Point Sockets

Electrical-Insulating 12-Point Sockets

Insulated to protect against accidental contact with live electrical circuits, these sockets are tested to 1,000 volts to meet IEC 60900.

12-Point Flex Sockets

Pivot the head to access fasteners from an angle.

Strut Channel Sockets

Designed to fit inside strut channel, these sockets make it easier to mount the channel than using an extension or additional tools.

Spark Plug Sockets

Flex Spark Plug Sockets

Pivot the head to access fasteners from an angle.

Spark Plug Sockets

A rubber insert grips the plug to prevent damage.

Bolt-Through Sockets

Turn nuts on bolts and threaded rod, which pass through these sockets.

Impact Sockets

Impact Hex Bit Sockets

6-Point Impact Sockets

Achieve the best possible grip on hex fasteners and prevent rounding.

Fastener-Holding 6-Point Impact Sockets

A magnet holds the fastener securely enough to drive self-tapping screws.

Extra-Deep 6-Point Impact Sockets

Extra length allows access to fasteners on long bolts.

6-Point Flex Impact Sockets

Pivot the head to access fasteners from an angle.

Nonmarring 6-Point Impact Sockets

Tighten or loosen nuts and bolts without damaging the finish.

Thin-Wall 6-Point Impact Sockets

With a smaller OD than standard sockets, these fit between tightly spaced fasteners.

12-Point Impact Sockets

The 12-point shape quickly positions on hex fasteners.

Nonsparking 12-Point Impact Sockets

Made of aluminum-bronze, these sockets satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

12-Point Flex Impact Sockets

Pivot the head to access fasteners from an angle.

Budd Wheel Impact Sockets

Designed to remove and install dual wheels on trucks and trailers, these sockets have a hex recess for accessing lug nuts and a square recess to turn the threaded shafts found on inner wheels.

Power Sockets

Power Hex Bit Sockets

Use bit sockets as an alternative to a screwdriver or L-key.

Fastener-Holding Power Sockets

A magnet holds the fastener securely enough to drive self-tapping screws.

Power Sockets

The hex shape grips hex fasteners and prevents rounding.

Bit Socket Sets

Hex Bit Socket Sets

Extended-Reach Hex Bit Socket Sets

Extra-long bits allow access to hard-to-reach fasteners.

Stubby Hex Bit Socket Sets

The short bit on these sockets fits in spaces where height clearance is limited.

Extended-Reach Ball-End Hex Bit Socket Sets

Extra-long bits allow access to hard-to-reach fasteners.

Ball-End Hex Bit Socket Sets

The ball end allows angled entry when you don't have exact alignment between the socket bit and fastener.

Hex, Torx, Phillips, and Slotted Bit Socket Assortments

Keep a convenient mix of hex, Torx, Phillips, and slotted bit sockets on hand.

Tamper-Resistant Hex Bit Socket Sets

These sockets are also known as pin-in-hex or pin-in-socket bits.

Socket Sets

Value 12-Point Socket Sets

For high quality at a lower price, choose these U.S.A.-made sets.

Premium 12-Point Socket Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish.

Economy 12-Point Socket Sets

Suitable for occasional maintenance work, these sets are imported.

12-Point Flex Socket Sets

Pivot the head to access fasteners from an angle.

Economy 6-Point Socket Sets

Suitable for occasional maintenance work, these sets are imported.

Value 6-Point Socket Sets

For high quality at a lower price, choose these U.S.A.-made sets.

Premium 6-Point Socket Sets

Made in the U.S.A., these tools handle the toughest industrial applications, provide the best grip on fasteners, and have a superior finish.

Nonsparking 6-Point Socket Sets

Made of aluminum-bronze, these sockets satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Tight-Clearance Offset Socket Sets

Box-End Tight-Clearance Offset Socket Sets

Make maximum contact on all sides of a fastener to reduce slipping. These sockets are also known as torque adapters.

Ratcheting Box-End Tight-Clearance Offset Socket Sets

A ratchet mechanism allows you to turn fasteners without removing and repositioning the socket.

Secure-Grip Tight-Clearance Offset Socket Sets

Tight-Clearance Offset Socket Sets

Often used with an extension, these sockets turn fasteners and fittings in obstructed areas that a regular socket can't reach. They are also known as crowfoot wrenches.

Bolt-Through Socket Sets

Turn nuts on bolts and threaded rod, which pass through these sockets.

Impact Socket Sets

Impact Hex Bit Socket Sets

Use these sockets as an alternative to a screwdriver or L-key. They are made to withstand the high torque and force of impact tools.

6-Point Flex Impact Socket Sets

Pivot the head to access fasteners from an angle.

6-Point Impact Socket Sets

The hex shape grips hex fasteners and prevents rounding. These sockets are made to withstand the high torque and force of impact tools.

Budd Wheel Impact Socket Sets

Remove and install dual wheels on trucks and trailers with the sockets in these sets.

Socket Organizers

Easy-Slide Clip-Rail Socket Organizers

The rail is smooth plastic so the clips move more easily than on steel-rail organizers.

Clip-Rail Socket Organizing Trays

Hold different square drive sizes on the four clip rails stored in these trays.

Clip-Rail Socket Organizers

Move the sliding clips to any position along the rail to hold a variety of sockets.

Easy-ID Socket Organizers

Store sockets on posts marked with the size.

Magnetic Socket Organizers

Magnets hold sockets securely in place.

Foam Socket Organizers

The slots in these low-profile organizers are a different color than the base so it's clear when tools are missing from your bench top or drawer.