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

    Grounding Rod Clamps

    Image of Product. Front orientation. Contains Annotated. Grounding Clamps. Grounding Rod Clamps.
    Image of Product. Front orientation. Grounding Clamps. Grounding Rod Clamps, Single-Nut Clamp, Two-Piece Design.
    Image of Product. Front orientation. Grounding Clamps. Grounding Rod Clamps, Dual-Nut Clamp, Lay-In Wire, Two-Piece Design.

    Single-Nut

    Clamp,

    Two-Piece

    Design

    Dual-Nut Clamp

    Lay-In Wire

    Two-Piece Design

    Connect bare-copper ground wire to grounding rods.
    Dual-Nut Clamp—Dual nut clamps give you more flexibility than single nut clamps.
    U-Bolt Clamp—U-bolt clamps are the most adjustable and work with rods ranging in size from 3/8" to 1".
    Lay-In Wire—For clamps with lay-in wire, there’s no need to thread wire through them. Simply lay the wire into the clamp’s opening and fasten.
    Two-Piece Design—Two-piece design clamps are easier to install onto bends and continuous loops than other single- and dual-nut clamps.
    UL 467—UL 467 clamps meet a standard for direct burial.
    For Rod Dia. (For Wire Ga.)
    Material
    Features
    Specs.
    Met
    Each
    Single-Nut Clamp
    1/2" (10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1/0)
    5/8" (10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1/0)
    3/4" (8, 7, 6, 5, 4, 3, 2, 1, 1/0)
    BronzeUL 4677511K5100000
    1/2" (6, 4)
    3/4" (6, 4)
    BronzeTwo-Piece Design7491K4200000
     
    Dual-Nut Clamp
    1/4" to 1" (10, 9, 8, 7, 6, 5, 4, 3, 2)BronzeLay-In Wire, Two-Piece Design7491K4300000
    1/2" (6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM, 300 MCM, 350 MCM)
    5/8" (6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM, 300 MCM, 350 MCM)
    3/4" (2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM)
    BronzeUL 4677491K6300000
     
    U-Bolt Clamp
    3/8" to 1" (6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCM, 300 MCM, 350 MCM, 400 MCM, 500 MCM)BronzeUL 4677511K4600000
     

    Grounding Splices

    Image of Product. Front orientation. Grounding Splices.
    Join two grounding wires to extend the length of your grounding connection or connect to an existing ground wire.
    For Wire Ga.
    Material
    Certification
    Each
    12, 11, 10, 9, 8, 7, 6BronzeUL Listed, CSA Certified
    8598T1300000
    8, 7, 6BronzeUL Listed, CSA Certified
    8598T120000
    8, 7, 6, 5, 4, 3, 2, 1, 1/0BronzeUL Listed, CSA Certified
    8598T140000
    4
    BronzeUL Listed, CSA Certified
    8598T110000

    Dual Slide-Bolt-Latch Snap Hooks

    Image of Product. Front orientation. Contains Annotated. Snap Hooks. Dual Slide-Bolt-Latch Snap Hooks.
    The slide bolt provides a more secure connection than standard snap hooks.
    Bronze—Bronze snap hooks have excellent corrosion resistance.
    Wt. Cap.
    Snap Opening
    Wd.
    Usable
    Lg.
    Latch
    Type
    Each
    Bronze
    Not Rated7/16"4 1/8"Slide Bolt3901T6600000
     

    Grounding Screws

    Image of ProductInUse. Front orientation. Grounding Screws.
    Connect grounding wires to steel structures, fence posts, and transformers. These screws can also tap one or two cables from a bus bar.
    For Wire Ga.
    Screw
    Size
    Material
    Certification
    Each
    12, 11, 10, 9, 81/4"
    BronzeCSA Certified, UL Listed
    7923K11000000
    10, 9, 8, 7, 61/4"
    BronzeCSA Certified, UL Listed
    7923K1300000
    10, 9, 8, 7, 6, 5, 45/16"
    BronzeCSA Certified, UL Listed
    7923K1500000
    10, 9, 8, 7, 6, 5, 4, 3, 23/8"
    BronzeCSA Certified, UL Listed
    7923K1700000
    10, 9, 8, 7, 6, 5, 4, 3, 2, 13/8"
    BronzeCSA Certified, UL Listed
    7923K1900000
    2, 1, 1/0, 2/0
    1/2"
    BronzeCSA Certified, UL Listed
    7923K2100000
    2, 1, 1/0, 2/0, 3/0
    1/2"
    BronzeCSA Certified, UL Listed
    7923K23000000
    1, 1/0, 2/0, 3/0, 4/0
    5/8"
    BronzeCSA Certified, UL Listed
    7923K25000000

    Grounding Clamps for Welding

    Designed specifically for use with welding circuits.
    C-Clamp
    Image of Product. Front orientation. Grounding Clamps. Grounding Clamps for Welding, C-Clamp, Heavy Duty.

    Heavy Duty

    C-clamps tighten with a handle. Use these multipurpose tools for strong clamping in nearly any application.
    Heavy Duty—Heavy duty clamps have a strong frame that won’t spread when holding big workpieces, such as large diameter pipe and thick plate.
    Copper-Plated Steel Screw—Clamps that have copper-plated components prevent weld spatter from sticking.
    Current,
    amp
    For No.
    of Wires
    For Wire
    Ga.
    Max. Cable
    Outlet Dia.
    Jaw
    Opening
    Connection
    Material
    Electrical
    Connection
    Cable
    Connection
    Features
    Each
    Standard
    3001/0, 2/0
    0.56"2"BronzeGrounding ClampWeldingCopper-Plated Steel Screw7840A12000000
    3001/0, 2/0
    0.56"2"BronzeGrounding ClampScrew TerminalCopper-Plated Steel Screw7840A1300000
    6003/0, 4/0
    0.63"2"BronzeGrounding ClampWeldingCopper-Plated Steel Screw7840A1500000
    6003/0, 4/0
    0.63"2"BronzeGrounding ClampScrew TerminalCopper-Plated Steel Screw7840A1400000
     
    Heavy Duty
    60013/0, 4/0
    0.66"3 3/8"BronzeGrounding ClampWeldingCopper-Plated Steel Screw7840A16000000
    60013/0, 4/0
    0.66"3 3/8"BronzeGrounding ClampScrew TerminalCopper-Plated Steel Screw7840A11000000
     

    Wire Rope Clamps with Thimbles—Not for Lifting

    Image of ProductInUse. Front orientation. Contains Annotated. Wire Rope Clamps. Wire Rope Clamps with Thimbles—Not for Lifting.
    Image of Product. Front orientation. Wire Rope Clamps. Wire Rope Clamps with Thimbles—Not for Lifting.
    Image of Attribute. Front orientation. Contains Annotated. Wire Rope Clamps. Wire Rope Clamps with Thimbles—Not for Lifting.
    A clamp and thimble in one convenient fitting simplifies installation while providing support and fray protection to the wire rope loop. Use a torque wrench to tighten the clamp.
    Warning: Test all assemblies for required strength before use. Do not use with coated rope unless the coating is removed.
    For
    Wire Rope
    Loop
    Dia.
    Construction
    Rope
    Turnback
    Inside
    Lg.
    Inside
    Wd.
    Overall
    Lg.
    Fabrication
    Req. Torque,
    ft·lbf
    Wt. Cap.,
    lb.
    Each
    Bronze
    1/8"6 × 19 Fiber Core
    6 × 19 IWRC
    6 × 26 IWRC
    6 × 37 IWRC
    6 × 7 Fiber Core
    3 1/4"15/16"9/16"2 1/2"Cast83003467T14000000
    3/16"6 × 19 Fiber Core
    6 × 19 IWRC
    6 × 26 IWRC
    6 × 37 IWRC
    6 × 7 Fiber Core
    3 3/4"1 1/8"21/32"2 7/8"Cast126003467T1500000
    1/4"6 × 19 Fiber Core
    6 × 19 IWRC
    6 × 26 IWRC
    6 × 37 IWRC
    6 × 7 Fiber Core
    4 3/4"1 9/16"7/8"3 3/4"Cast191,0003467T1600000
    5/16"6 × 19 Fiber Core
    6 × 19 IWRC
    6 × 26 IWRC
    6 × 37 IWRC
    6 × 7 Fiber Core
    5 1/4"1 15/16"1 1/16"4 5/8"Cast191,6003467T1700000
     

    Bonding and Grounding Clamps

    C-Clamps
    Image of Product. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps, C-Clamps.
    Jaw
    Opening
    For Max.
    Cable OD
    Connection
    Material
    Each
    1 1/8"0.25"Bronze70345K66000000
    Quick-Release Clamps
    Image of Product. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps, Quick-Release Clamps.
    Quick-release clamps open when the cable is pulled. They can be used to ground vehicles.
    Jaw
    Opening
    For Max.
    Cable OD
    Connection
    Material
    Each
    1 1/4"0.38"Bronze70345K750000000

    Grounding Plate Clamps

    Image of Product. Front orientation. Grounding Clamps. Grounding Plate Clamps.
    Eliminate the need to drive a new ground rod—these clamps connect grounding wire to an existing flat grounding surface, such as the lid of an electric meter box.
    For No.
    of Wires
    For Wire Ga.
    For Max.
    Plate Thk.
    Material
    Electrical
    Connection
    Certification
    Each
    114, 13, 12, 11, 10, 9, 8, 7, 63/8"BronzeScrew TerminalUL Listed
    7002K16000000
     

    Bonding and Grounding Clamps with Cable

    Create a grounding path to prevent static charge buildup.
    Also Available: Additional cable lengths for noninsulated and insulated cables with two connections. Please select 6955K889 and specify connection types and length.
    Cable with 2 Connections
    Image of Product. Retracting Cable with Two Connections. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.
    Image of Product. Bronze Pipe Clamp. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.
    Image of Product. Plier Clamp. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.

    Retracting Cable with Two

    Connections

    Bronze Pipe

    Clamp

    Plier Clamp

    Image of Product. Steel Pipe Clamp. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.
    Image of Product. Ring Terminal. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.
    Image of Product. Quick-Release Clamp. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.

    Steel Pipe Clamp

    Ring Terminal

    Quick-Release Clamp

    Image of Product. Retracting Cable with Three Connections. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.
    Image of Product. Cable with Two Connections. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.
    Image of Product. C-Clamp. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.

    Retracting Cable

    with Three

    Connections

    Cable with Two Connections

    C-Clamp

    Image of Product. Alligator Clip. Front orientation. Bonding and Grounding Clamps. Bonding and Grounding Clamps with Cable.

    Alligator Clip

    Galvanized
    Steel Cable
    Electrical Connection
    Connection
    Material
    Lg.
    OD
    Insulation
    Color
    Each
    Insulated Retracting Cable
    Plier Clamp (1 1/8" Jaw Opening)
    Pipe Clamp (1 5/8" Jaw Opening)
    Aluminum
    Bronze
    5 ft.0.13"Orange6955K591000000
    Plier Clamp (1 1/8" Jaw Opening)
    Pipe Clamp (1 5/8" Jaw Opening)
    Aluminum
    Bronze
    10 ft.0.13"Orange7610K69000000
    Plier Clamp (1 1/8" Jaw Opening)
    Pipe Clamp (1 5/8" Jaw Opening)
    Aluminum
    Bronze
    20 ft.0.13"Orange7610K8100000
     

    I-Beam Fall-Arrest Anchors

    Image of ProductInUse. Front orientation. Fall-Arrest Anchors. I-Beam Fall-Arrest Anchors.
    Image of Product. Rolling. Front orientation. Fall-Arrest Anchors. I-Beam Fall-Arrest Anchors, Clamp On, Rolling.

    Rolling

    Clamp these anchors onto I-beams—they give you a secure place to clip your fall-arrest lanyard without damaging the beam surface. Plus, they’re reusable and don’t require tools to install and remove. When used together with a harness and lanyard, these anchors help you meet OSHA and ANSI safety standards.
    Clamp On
    Image of Product. Rolling. Front orientation. Fall-Arrest Anchors. I-Beam Fall-Arrest Anchors, Clamp On, Rolling.

    Rolling

    Rolling—Rolling anchors move with you, so you’re free to work along the length of the beam.
    Bronze Insert—Those with bronze inserts glide smoothly for easy movement.
    For I-Beam
    Flange
    Wd.
    Thk.
    Material
    Insert
    Material
    Connection
    Hardware
    Breaking Strength,
    lbf
    Wt. Cap.,
    lb.
    Specs. Met
    Each
    Rolling
    12" to 30"2 1/2"AluminumBronzeD-Ring5,000310ANSI/ASSP Z359.18, OSHA Compliant 29 CFR 1910.140, OSHA Compliant 29 CFR 1926.5029893N110000000
     

    Enclosed Battery Holders

    Image of Product. Front orientation. Battery Holders. Enclosed Battery Holders.
    Holders have snap-on or screw-on covers to fully enclose and protect batteries.
    Wire Connection
    For No. of
    Batteries
    Battery Contact
    Type
    Battery
    Layout
    Material
    No. of Wire
    Leads
    Connection
    Type
    Wire Lead
    Lg.
    Wire Lead
    AWG
    Contact
    Material
    Cover
    Style
    Lg.
    Wd.
    Ht.
    Each
    For CR2032 Batteries
    1SpringSinglePolypropylene
    2Wire Leads6"26
    BronzeScrew On1 1/4"0.93"0.24"7712K32400000
    2SpringSide by SidePolypropylene
    2Wire Leads6"26
    BronzeScrew On2.03"0.93"0.24"7712K3250000
     

    Grounding Pipe Clamps

    Image of ProductInUse. Front orientation. Grounding Clamps. Grounding Pipe Clamps, For 1 Wire.
    Image of ProductInUse. Front orientation. Grounding Clamps. Grounding Pipe Clamps, For 2 Wires.

    For 1 Wire

    For 2 Wires

    Attach grounding wire to pipes.
    For
    Pipe
    For No.
    of Wires
    Size
    OD
    For Wire Ga.
    Material
    Electrical
    Connection
    Certification
    Each
    11/2 to 11/2" to 1 1/4"16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2BronzeScrew TerminalUL Listed
    7599K71000000
    21 to 1 1/43/4" to 1 11/16"6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCMTin-Plated BronzeScrew TerminalUL Listed
    7599K7300000
    21 1/2 to 21" to 2 3/8"6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCMTin-Plated BronzeScrew TerminalUL Listed
    7599K7600000
    22 1/2 to 32 1/4" to 3 1/2"6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCMTin-Plated BronzeScrew TerminalUL Listed
    7599K7700000
    23 1/2 to 43 1/4" to 4 1/2"6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCMTin-Plated BronzeScrew TerminalUL Listed
    7599K7900000
    25 to 65 5/8" to 6 5/8"6, 5, 4, 3, 2, 1, 1/0, 2/0, 3/0, 4/0, 250 MCMTin-Plated BronzeScrew TerminalUL Listed
    7599K6900000
     
    back to top