McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    134 Products

    Wrench Heads

    Image of System. Wrench and Socket Extension Not Included. Front orientation. Wrench Heads. Wrench Heads.
    Image of Product. Front orientation. Contains Annotated. Wrench Heads. Wrench Heads.

    Wrench and Socket

    Extension Not Included

    Reach nuts obstructed by a fluid line or other barrier with these wrench heads. Connect them to your socket extension and ratchet wrench to turn fasteners where clearance is limited from both the top and side. You can also attach one directly to your ratchet wrench to convert it into an open-ended ratcheting wrench. Also known as crowfoot wrenches.
    Drive
    Size
    Overall
    Lg.
    Thk.
    Ctr.-to-Ctr.
    Lg.
    Material
    Wrench Opening
    Shape
    Each
    1/4" Square Drive
    1/4"15/16"7/32"9/16"Chrome-Plated SteelRound1213A1000000
    5/16"1"7/32"9/16"Chrome-Plated SteelRound1213A200000
    3/8"1 1/16"7/32"5/8"Chrome-Plated SteelRound1213A300000
    7/16"1 3/16"7/32"5/8"Chrome-Plated SteelRound1213A400000
    1/2"1 3/16"7/32"11/16"Chrome-Plated SteelRound1213A500000
    9/16"1 5/16"7/32"11/16"Chrome-Plated SteelRound1213A600000
    7 mm15/16"1/4"9/16"Chrome-Plated SteelRound1811N3100000
    8 mm31/32"1/4"9/16"Chrome-Plated SteelRound1811N3200000
    10 mm1 1/16"1/4"9/16"Chrome-Plated SteelRound1811N3400000
    11 mm1 1/8"1/4"5/8"Chrome-Plated SteelRound1811N3500000
    12 mm1 5/32"1/4"5/8"Chrome-Plated SteelRound1811N3600000
    13 mm1 3/16"1/4"11/16"Chrome-Plated SteelRound1811N3700000
    14 mm1 1/4"1/4"11/16"Chrome-Plated SteelRound1811N3800000
     
    3/8" Square Drive
    3/8"1 5/16"7/32"3/4"Chrome-Plated SteelRound5844A1100000
    7/16"1 1/4"7/32"11/16"Chrome-Plated SteelRound5844A1200000
    1/2"1 7/16"7/32"13/16"Chrome-Plated SteelRound5844A1300000
    9/16"1 5/8"7/32"15/16"Chrome-Plated SteelRound5844A1400000
    5/8"1 9/16"7/32"7/8"Chrome-Plated SteelRound5844A1500000
    11/16"1 15/16"7/32"1 1/8"Chrome-Plated SteelRound5844A1600000
    3/4"1 7/8"7/32"1 1/16"Chrome-Plated SteelRound5844A1700000
    13/16"2"9/32"1 1/8"Chrome-Plated SteelRound5844A2100000
    7/8"2"9/32"1 1/16"Chrome-Plated SteelRound5844A1800000
    15/16"2 1/8"11/32"1 3/16"Chrome-Plated SteelRound5844A2400000
    1"2 1/16"11/32"1 1/8"Chrome-Plated SteelRound5844A1900000
    1 1/4"2 3/16"3/8"1 1/4"Chrome-Plated SteelRound5844A2200000
    1 3/8"2 3/8"3/8"1 5/16"Chrome-Plated SteelRound5844A2300000
    10 mm1 1/4"1/4"3/4"Chrome-Plated SteelRound5311A3100000
    11 mm1 3/8"5/16"3/4"Chrome-Plated SteelRound5311A5100000
    12 mm1 1/2"1/4"7/8"Chrome-Plated SteelRound5311A3300000
    13 mm1 1/2"1/4"13/16"Chrome-Plated SteelRound5311A3400000
    14 mm1 3/8"1/4"3/4"Chrome-Plated SteelRound5311A3500000
    15 mm1 5/8"1/4"15/16"Chrome-Plated SteelRound5311A3600000
    16 mm1 5/8"1/4"7/8"Chrome-Plated SteelRound5311A3700000
    17 mm1 5/8"1/4"1"Chrome-Plated SteelRound5311A3800000
    18 mm1 7/8"1/4"1 1/8"Chrome-Plated SteelRound5311A3900000
    19 mm1 7/8"1/4"1 1/16"Chrome-Plated SteelRound5311A4100000
    20 mm1 7/8"1/4"1"Chrome-Plated SteelRound5311A4200000
    21 mm1 7/8"1/4"1 1/8"Chrome-Plated SteelRound5311A4300000
    22 mm2"1/4"1 1/16"Chrome-Plated SteelRound5311A4400000
    23 mm2 3/8"5/16"1 7/16"Chrome-Plated SteelRound5311A5200000
    24 mm2 7/16"5/16"1 7/16"Chrome-Plated SteelRound5311A5300000
     
    1/2" Square Drive
    15/16"2 11/16"11/32"1 1/2"Chrome-Plated SteelRound5831A1100000
    1"2 11/16"23/64"1 11/16"Chrome-Plated SteelRound5831A1200000
    1 1/16"2 11/16"3/8"1 3/4"Chrome-Plated SteelRound5831A1300000
    1 1/8"2 13/16"3/8"1 3/4"Chrome-Plated SteelRound5831A1400000
    1 3/16"2 13/16"13/32"1 3/4"Chrome-Plated SteelRound5831A3100000
    1 1/4"3 1/8"13/32"2"Chrome-Plated SteelRound5831A1500000
    1 5/16"3 1/8"7/16"2"Chrome-Plated SteelRound5831A1600000
    1 3/8"3 3/16"7/16"2"Chrome-Plated SteelRound5831A2200000
    1 7/16"3 3/16"7/16"2"Chrome-Plated SteelRound5831A1700000
    1 1/2"3 3/16"15/32"2"Chrome-Plated SteelRound5831A1800000
    1 9/16"3 3/16"15/32"2"Chrome-Plated SteelRound5831A4200000
    1 5/8"3 5/16"1/2"2"Chrome-Plated SteelRound5831A1900000
    1 11/16"3 5/8"1/2"2 3/16"Chrome-Plated SteelRound5831A4300000
    1 3/4"3 5/8"17/32"2 3/16"Chrome-Plated SteelRound5831A2100000
    1 13/16"3 5/8"17/32"2 3/16"Chrome-Plated SteelRound5831A4400000
    1 7/8"3 5/8"9/16"2 3/16"Chrome-Plated SteelRound5831A3200000
    2"3 11/16"9/16"2 1/4"Chrome-Plated SteelRound5831A3300000
    2 1/8"3 11/16"37/64"2 1/4"Chrome-Plated SteelRound5831A4500000
    2 1/4"3 5/8"37/64"2 7/16"Chrome-Plated SteelRound5831A4600000
    2 3/8"4 11/16"19/32"2 1/2"Chrome-Plated SteelRound5831A4700000
    2 7/16"4 11/16"19/32"2 7/16"Chrome-Plated SteelRound5831A4800000
    2 1/2"4 11/16"19/32"2 7/16"Chrome-Plated SteelRound5831A4900000
    20 mm2 5/8"3/8"1 5/8"Chrome-Plated SteelRound1882N4100000
    21 mm2 9/16"3/8"1 5/8"Chrome-Plated SteelRound1882N4200000
    22 mm2 13/16"3/8"1 3/4"Chrome-Plated SteelRound1882N4300000
    23 mm2 13/16"3/8"1 3/4"Chrome-Plated SteelRound1882N4400000
    24 mm2 13/16"3/8"1 3/4"Chrome-Plated SteelRound1882N4500000
    25 mm2 7/8"3/8"1 3/4"Chrome-Plated SteelRound1882N4600000
    26 mm2 15/16"3/8"1 3/4"Chrome-Plated SteelRound1882N4700000
    27 mm2 15/16"3/8"1 3/4"Chrome-Plated SteelRound1882N4800000
    28 mm3"3/8"1 13/16"Chrome-Plated SteelRound1882N4900000
    29 mm3 1/16"3/8"1 13/16"Chrome-Plated SteelRound1882N5100000
    30 mm3 1/16"3/8"1 13/16"Chrome-Plated SteelRound1882N5200000
    32 mm3 5/16"3/8"2"Chrome-Plated SteelRound1882N5300000
    35 mm3 3/8"3/8"2"Chrome-Plated SteelRound1882N5400000
    36 mm3 7/16"3/8"2"Chrome-Plated SteelRound1882N5500000
    38 mm3 7/16"3/8"2"Chrome-Plated SteelRound1882N5600000
    41 mm3 1/2"3/8"2 1/16"Chrome-Plated SteelRound1882N5700000
    42 mm3 13/16"3/8"2 1/4"Chrome-Plated SteelRound1882N5800000
    46 mm3 7/8"3/8"2 1/4"Chrome-Plated SteelRound1882N5900000
     

    Sure Grip Wrench Heads

    Image of System. Wrench and Socket Extension Not Included. Front orientation. Wrench Heads. Sure Grip Wrench Heads.

    Wrench and Socket

    Extension Not Included

    Image of Product. Front orientation. Contains Annotated. Wrench Heads. Sure Grip Wrench Heads, Hex Sure-Grip Opening.

    Hex Sure-Grip Opening

    Image of Product. Front orientation. Contains Annotated. Wrench Heads. Sure Grip Wrench Heads, 12-Point Sure-Grip Opening.

    12-Point Sure-Grip

    Opening

    Grip more of your fastener head with these wrench heads. They have a hex or 12-point opening with more surface area than rounded wrench heads, so they make more contact with fasteners for a better hold. Also known as flare-nut crowfoot wrenches or line wrenches, they're often used with flared tube fittings as well as fuel and hydraulic lines. Connect them to your socket extension and ratchet wrench to turn fasteners where clearance is limited from both the top and side. You can also attach one directly to your ratchet wrench to convert it into an open-ended ratcheting wrench.
    Hex Sure-Grip Opening—Hex sure-grip wrench openings achieve the best possible grip on hex fasteners and prevent rounding.
    12-Point Sure-Grip Opening—Wrenches with a 12-point sure-grip opening quickly position on hex fasteners.
    Drive
    Size
    Overall
    Lg.
    Thk.
    Ctr.-to-Ctr.
    Lg.
    Material
    Wrench Opening
    Shape
    Each
    3/8" Square Drive
    3/8"1 13/16"3/8"5/8"Chrome-Plated SteelHex Sure Grip7306A31000000
    7/16"1 1/2"13/32"5/8"Chrome-Plated SteelHex Sure Grip7306A3200000
    1/2"1 5/8"7/16"21/32"Chrome-Plated SteelHex Sure Grip7306A3300000
    9/16"1 5/8"7/16"11/16"Chrome-Plated SteelHex Sure Grip7306A3400000
    5/8"1 1/2"11/16"3/4"Chrome-Plated Steel12-Point Sure Grip5845A1100000
    5/8"1 3/4"7/16"3/4"Chrome-Plated SteelHex Sure Grip7306A3500000
    11/16"1 5/8"11/16"13/16"Chrome-Plated Steel12-Point Sure Grip5845A1200000
    11/16"1 13/16"15/32"3/4"Chrome-Plated SteelHex Sure Grip7306A3600000
    3/4"1 11/16"23/32"7/8"Chrome-Plated Steel12-Point Sure Grip5845A1300000
    3/4"1 15/16"15/32"13/16"Chrome-Plated SteelHex Sure Grip7306A3700000
    7/8"1 7/8"3/4"15/16"Chrome-Plated Steel12-Point Sure Grip5845A1500000
    15/16"1 15/16"3/4"15/16"Chrome-Plated Steel12-Point Sure Grip5845A1600000
    1"2 1/16"25/32"1 1/16"Chrome-Plated Steel12-Point Sure Grip5845A1700000
    1 1/16"2 1/8"25/32"1 1/16"Chrome-Plated Steel12-Point Sure Grip5845A1800000
     
    1/2" Square Drive
    1 1/8"2 3/8"29/32"1 3/16"Chrome-Plated Steel12-Point Sure Grip5832A1100000
    1 3/16"2 1/2"29/32"1 3/16"Chrome-Plated Steel12-Point Sure Grip5832A2300000
    1 1/4"2 1/2"29/32"1 1/4"Chrome-Plated Steel12-Point Sure Grip5832A1200000
    1 5/16"2 5/8"29/32"1 5/16"Chrome-Plated Steel12-Point Sure Grip5832A2400000
    1 3/8"2 5/8"31/32"1 5/16"Chrome-Plated Steel12-Point Sure Grip5832A1400000
    1 7/16"2 3/4"31/32"1 3/8"Chrome-Plated Steel12-Point Sure Grip5832A2500000
    1 1/2"2 3/4"31/32"1 3/8"Chrome-Plated Steel12-Point Sure Grip5832A1600000
    1 9/16"2 7/8"31/32"1 7/16"Chrome-Plated Steel12-Point Sure Grip5832A2600000
    1 5/8"2 7/8"31/32"1 1/2"Chrome-Plated Steel12-Point Sure Grip5832A1700000
    1 11/16"3"1 1/32"1 9/16"Chrome-Plated Steel12-Point Sure Grip5832A2700000
    1 3/4"3 1/8"1 1/32"1 9/16"Chrome-Plated Steel12-Point Sure Grip5832A1900000
    1 13/16"3 1/8"1 1/32"1 5/8"Chrome-Plated Steel12-Point Sure Grip5832A2800000
    1 7/8"3 1/4"1 3/32"1 11/16"Chrome-Plated Steel12-Point Sure Grip5832A2100000
    1 15/16"3 3/8"1 3/32"1 11/16"Chrome-Plated Steel12-Point Sure Grip5832A2900000
    2"3 3/8"1 3/32"1 3/4"Chrome-Plated Steel12-Point Sure Grip5832A2200000
     

    Ratcheting Wrench Head Sets

    Image of ProductInUse. Wrench and Socket Extension Not Included. Front orientation. Wrench Heads. Ratcheting Wrench Head Sets.
    Image of Product. Front orientation. Wrench Heads. Ratcheting Wrench Head Sets.

    Wrench and

    Socket Extension

    Not Included

    Connect one of the heads in these sets to a socket extension to reach an obstructed fastener, then turn the fastener without removing and repositioning the wrench head. These also work well where clearance is limited from both the top and side. Alternatively, attach a head directly to a wrench handle to convert it into an open-ended ratcheting wrench. Also known as crowfoot wrenches.
    No. of
    Pieces
    Includes
    Turn Req.
    to Ratchet
    Material
    Wrench Opening
    Shape
    Container
    Type
    Each
    3/8" Square Drive
    10Wrench Heads: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm60°Chrome-Plated SteelHexPlastic Case93312A1200000000
    11Wrench Heads: 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"60°Chrome-Plated SteelHexPlastic Case93312A110000000
     

    Sure Grip Wrench Head Sets

    Image of ProductInUse. Wrench and Socket Extension Not Included. Front orientation. Wrench Heads. Sure Grip Wrench Head Sets.
    Image of Product. Front orientation. Wrench Heads. Sure Grip Wrench Head Sets.

    Wrench and

    Socket Extension

    Not Included

    Grip more of your fastener head with these wrench heads. They have a hex or 12-point opening with more surface area than rounded wrench heads, so they make more contact with fasteners for a better hold. Also known as flare-nut crowfoot wrenches or line wrenches, they're often used with flared tube fittings as well as fuel and hydraulic lines. Connect them to a socket extension and ratchet wrench to turn fasteners where clearance is limited from both the top and side. You can also attach one directly to your ratchet wrench to convert it into an open-ended ratcheting wrench.
    No. of
    Pieces
    Includes
    Material
    Wrench Opening
    Shape
    Container Type
    Each
    3/8" Square Drive
    8Wrench Heads: 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1 1/16"Chrome-Plated Steel12-Point Sure GripPlastic Clip Rail5845A210000000
    18Wrench Heads: 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 27 mmNickel-Plated SteelHex Sure GripPlastic Clip Rail5311A111000000
     
    1/2" Square Drive
    8Wrench Heads: 1 1/8", 1 1/4", 1 5/16", 1 3/8", 1 1/2", 1 5/8", 1 3/4", 2"Chrome-Plated Steel12-Point Sure GripPlastic Clip Rail5832A31000000
     

    Self-Adjusting Ratcheting Box Wrench Head Sets

    Image of ProductInUse. Wrench and Socket Extension Not Included. Front orientation. Wrench Heads. Self-Adjusting Ratcheting Box Wrench Head Sets.
    Image of Product. Front orientation. Wrench Heads. Self-Adjusting Ratcheting Box Wrench Head Sets.

    Wrench and Socket

    Extension Not Included

    Get a strong grip in tight areas, even on fasteners that are rounded or damaged. Open the spring-loaded jaws in these heads to access a fastener like an open-end wrench; the jaws will automatically close when you push against the fastener. The 6-point opening grips hex heads on all sides. Also known as crowfoot wrenches. Attach one to a socket extension to reach obstructed fasteners. With the ratcheting feature, you can turn the fastener without removing and repositioning the wrench head.
    No. of
    Pieces
    Includes
    Turn Req.
    to Ratchet
    Material
    Wrench Opening
    Shape
    Container
    Type
    Each
    3/8" Square Drive
    6Wrench Heads: 8 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm15°Stainless Steel6-PointFoam Tray93263A1100000000
     

    Wrench Head Sets

    Image of ProductInUse. Wrench and Socket Extension Not Included. Front orientation. Wrench Heads. Wrench Head Sets.

    Wrench and

    Socket

    Extension Not

    Included

    Image of Product. Wrench Head Set. Front orientation. Wrench Heads. Wrench Head Sets.
    Image of Product. Wrench Head Set with Metal Clip Rail. Front orientation. Wrench Heads. Wrench Head Sets, Metal Clip Rail.

    Wrench Head Set

    Wrench Head Set with Metal Clip

    Rail

    Image of Product. Wrench Head Set with Plastic Clip Rail. Front orientation. Wrench Heads. Wrench Head Sets, Plastic Clip Rail.

    Wrench Head Set with

    Plastic Clip Rail

    Reach nuts obstructed by a fluid line or other barrier with the wrench heads in these sets. Connect them to a socket extension and ratchet wrench to turn fasteners where clearance is limited from both the top and side. You can also attach one directly to your ratchet wrench to convert it into an open-ended ratcheting wrench. Also known as crowfoot wrenches.
    No. of
    Pieces
    Includes
    Material
    Wrench Opening
    Shape
    Container Type
    Each
    1/4" Square Drive
    7Wrench Heads: 7 mm, 8 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mmChrome-Plated SteelRound5844A1210000000
     
    3/8" Square Drive
    10Wrench Heads: 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 1"Chrome-Plated SteelRoundMetal Clip Rail5844A25000000
    10Wrench Heads: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mmChrome-Plated SteelRoundMetal Clip Rail5311A45000000
    15Wrench Heads: 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4"Chrome-Plated SteelRound5844A122000000
    30Wrench Heads (Inch): 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"
    Wrench Heads (Metric): 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm
    Nickel-Plated SteelRoundPlastic Clip Rail5844A123000000
     
    1/2" Square Drive
    7Wrench Heads: 15/16", 1", 1 1/16", 1 1/8", 1 1/4", 1 7/16", 1 1/2"Chrome-Plated SteelRoundMetal Clip Rail5831A41000000
    15Wrench Heads: 1 1/16", 1 1/8", 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 9/16", 1 5/8", 1 11/16", 1 3/4", 1 13/16", 1 7/8", 2"Chrome-Plated SteelRound5831A121000000
     

    Open-End 6-Point Sockets

    Slide the open side of these sockets over a tube or hose to adjust a nut that’s already installed. You can turn them with ratchets, so they’re easier to use than open-end wrench heads—no need to pull the socket off the nut and reposition. The hex shape provides the best possible grip on hex fasteners and prevents rounding. Only use with hand-driven tools.
    Chrome-Plated Steel
    Image of ProductInUse. Front orientation. Contains Annotated. Sockets. Open-End 6-Point Sockets.
    Image of Product. Bottom orientation. Sockets. Open-End 6-Point Sockets.
    Image of Specification. Front orientation. 6-Point Socket.
    Deep Clearance
    Drive Size,
    mm
    OD
    Opening
    Lg.
    Socket
    Shape
    For Drive
    Style
    Overall
    Lg.
    Each
    3/8" Square Drive
    1023/32"27/32"6-PointExternal Hex
    2 3/32"93299A110000000
    1123/32"27/32"6-PointExternal Hex
    2 3/32"93299A12000000
    1247/64"27/32"6-PointExternal Hex
    2 3/32"93299A13000000
    1351/64"1 1/8"6-PointExternal Hex
    2 15/32"93299A14000000
    147/8"1 1/8"6-PointExternal Hex
    2 15/32"93299A15000000
    1529/32"1 7/16"6-PointExternal Hex
    2 13/16"93299A16000000
    1615/16"1 7/16"6-PointExternal Hex
    2 13/16"93299A17000000
    171"1 5/8"6-PointExternal Hex
    3 1/16"93299A18000000
    181 3/64"1 13/16"6-PointExternal Hex
    3 5/16"93299A19000000
    191 1/16"2 1/16"6-PointExternal Hex
    3 17/32"93299A20000000
     

    Open-End 6-Point Socket Sets

    The sockets in these sets have a cutout and extra length so you can reach and twist nuts without having to disconnect your line. Connect them to a ratchet wrench to turn nuts around a wired sensor, fuel line, or hose without having to remove and reposition your wrench. The hex shape achieves the best possible grip on hex fasteners to prevent rounding their points. For use with hand-drive tools only.
    Sockets—Chrome-Plated Steel
    Image of ProductInUse. Front orientation. Contains Annotated. Sockets. Open-End 6-Point Socket Sets.
    Image of Product. Front orientation. Sockets. Open-End 6-Point Socket Sets.
    Image of Specification. Front orientation. 6-Point Socket.
    No. of
    Pieces
    Components
    Included
    Includes
    Container
    Type
    Socket
    Shape
    Drive Size, mm
    Each
    3/8" Square Drive
    1010 SocketsDeep: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mmFoam Tray6-Point10, 11, 12, 13, 14, 15, 16, 17, 18, 197983N1010000000
     
    back to top