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    104 Products

    Conduit Locknuts

    Secure threaded conduit fittings to knockouts. These locknuts keep fittings from shifting, so connections stay stable and wiring is protected inside electrical boxes or enclosures.
    For Metal and Plastic Fittings
    Image of Product. Front orientation. Conduit and Fittings. Conduit Locknuts, For Metal and Plastic Fittings.
    Image of Product. Locknut with PVC Molded Gasket. Front orientation. Conduit and Fittings. Conduit Locknuts, For Metal and Plastic Fittings, PVC Molded Gasket.

    Locknut with

    PVC Molded

    Gasket

    Image of Product. Locknut with Serrated Facing. Front orientation. Conduit and Fittings. Conduit Locknuts, For Metal and Plastic Fittings, Serrated Facing.

    Locknut

    with

    Serrated

    Facing

    Zinc-Plated Steel—The strength of steel with a plating that protects from occasional exposure to moisture.
    PVC Molded Gasket—Creates a seal for moisture protection.
    Serrated Facing—Grips the material surface for added stability.
    Pipe
    Size
    Features
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    NPSM Thread
     
    Zinc-Plated Steel
    1/2
    		—CSA Certified, UL Listed107513K24100000
    1/2
    		PVC Molded GasketCSA Certified, UL Listed27513K3110000
    1/2
    		Serrated FacingCSA Certified, UL Listed17513K1190000
    3/4
    		—CSA Certified, UL Listed107513K2420000
    3/4
    		PVC Molded GasketCSA Certified, UL Listed27513K3120000
    3/4
    		Serrated FacingCSA Certified, UL Listed17513K1290000
    1
    		—CSA Certified, UL Listed107513K2430000
    1
    		PVC Molded GasketCSA Certified, UL Listed27513K3130000
    1
    		Serrated FacingCSA Certified, UL Listed17513K1210000
    1 1/4
    		—CSA Certified, UL Listed107513K24400000
    1 1/4
    		PVC Molded GasketCSA Certified, UL Listed27513K3140000
    1 1/4
    		Serrated FacingCSA Certified, UL Listed17513K1220000
    1 1/2
    		—CSA Certified, UL Listed107513K24500000
    1 1/2
    		PVC Molded GasketCSA Certified, UL Listed27513K3150000
    1 1/2
    		Serrated FacingCSA Certified, UL Listed17513K1230000
    2
    		—CSA Certified, UL Listed107513K24600000
    2
    		PVC Molded GasketCSA Certified, UL Listed27513K31600000
    2
    		Serrated FacingCSA Certified, UL Listed17513K1240000
    2 1/2
    		—CSA Certified
    		17513K1110000
    2 1/2
    		PVC Molded GasketCSA Certified
    		17513K11500000
    2 1/2
    		Serrated FacingCSA Certified
    		17513K12500000
    3
    		—CSA Certified
    		17513K1120000
    3
    		PVC Molded GasketCSA Certified
    		17513K11600000
    3
    		Serrated FacingCSA Certified
    		17513K12600000
    3 1/2
    		—CSA Certified
    		17513K1130000
    3 1/2
    		PVC Molded GasketCSA Certified
    		17513K11700000
    4
    		—CSA Certified
    		17513K11400000
    4
    		Serrated FacingCSA Certified
    		17513K12800000
     
    Conduit Locknut and Reaming Pliers
    Image of Product. Front orientation. Conduit Locknut and Reaming Pliers.
    Tighten locknuts and ream both the inside and outside of conduit with one tool. These pliers have combination jaws with multiple curved openings to work with 1/2" (13 mm) and 3/4" (19 mm) EMT conduit locknuts and 1/2" rigid conduit locknuts and flat nuts. Their machined nose fits snugly into locknut wings. They can also pull wire and fish tape, thanks to their serrated jaws. Pliers have plastic grips for comfort.
    Jaw
    Overall
    Lg.
    Max.
    Cap.
    Lg.
    Opening
    Style
    Texture
    Material
    For Tape
    Shape
    With Wire
    Cutter
    Each
    Combination Jaw and Cushion Grip
    7 3/4"1 3/8"1 5/8"ManualSerratedSteel
    		FlatNo4642N11000000
     

    Low-Pressure Iron and Steel Threaded Pipe Locknuts

    Image of Product. Front orientation. Pipe Locknuts. Low-Pressure Iron and Steel Threaded Pipe Locknuts.
    Use these locknuts for low-pressure applications in noncorrosive environments.
    Locknuts thread onto the male end of a fitting to provide extra holding power so the fitting won’t loosen from vibration.
    NPTF (Dryseal) threads, NPSC (National Pipe Straight Coupling) threads, and NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.
    DIN 431—Locknuts that meet DIN 431 comply with international standards for pipe locknut dimensions.
    For Pipe
    Pipe
    Size
    Hex Wd.
    Lg.
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    For Use With
    Pressure
    Class
    Material
    Schedule
    Material
    For Flange
    Material
    Specs. Met
    Each
    NPT Female
    3
    		4 1/4"11/16"175 psi @ 72° F125 psi @ 350° FAir, Natural Gas, Oil, Steam, Water125
    		Iron40
    		SteelIron, SteelASME B1.20.1, ASME B16.444605K488000000
     
    NPSL Female
    1/4
    		27/32"1/4"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Steel
    		40
    		SteelIron, SteelASME B16.1444605K4340000
    3/8
    		1"9/32"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Iron40
    		SteelIron, SteelASME B16.1444605K2110000
    1/2
    		1 3/16"5/16"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Iron40
    		SteelIron, SteelASME B16.1444605K2120000
    3/4
    		1 7/16"11/32"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Iron40
    		SteelIron, SteelASME B16.1444605K2130000
    1
    		1 3/4"3/8"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Iron40
    		SteelIron, SteelASME B16.1444605K21400000
    1 1/4
    		2 3/32"27/64"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Iron40
    		SteelIron, SteelASME B16.1444605K2150000
    1 1/2
    		2 11/32"15/32"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Iron40
    		SteelIron, SteelASME B16.1444605K21600000
    2
    		2 7/8"17/32"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Iron40
    		SteelIron, SteelASME B16.1444605K21700000
     
    BSPP Female
    1/8
    		19 mm6 mmNot RatedNot RatedAir, Natural Gas, Oil, Steam, Water—Steel
    		—SteelSteelDIN 4313555N110000
    1/4
    		22 mm6 mmNot RatedNot RatedAir, Natural Gas, Oil, Steam, Water—Steel
    		—SteelSteelDIN 4313555N120000
    3/8
    		27 mm7 mmNot RatedNot RatedAir, Natural Gas, Oil, Steam, Water—Steel
    		—SteelSteelDIN 4313555N130000
    1/2
    		32 mm8 mmNot RatedNot RatedAir, Natural Gas, Oil, Steam, Water—Steel
    		—SteelSteelDIN 4313555N140000
    3/4
    		36 mm9 mmNot RatedNot RatedAir, Natural Gas, Oil, Steam, Water—Steel
    		—SteelSteelDIN 4313555N150000
    1
    		46 mm10 mmNot RatedNot RatedAir, Natural Gas, Oil, Steam, Water—Steel
    		—SteelSteelDIN 4313555N1600000
    1 1/4
    		55 mm11 mmNot RatedNot RatedAir, Natural Gas, Oil, Steam, Water—Steel
    		—SteelSteelDIN 4313555N1700000
    1 1/2
    		60 mm12 mmNot RatedNot RatedAir, Natural Gas, Oil, Steam, Water—Steel
    		—SteelSteelDIN 4313555N1800000
    2
    		75 mm13 mmNot RatedNot RatedAir, Natural Gas, Oil, Steam, Water—Steel
    		—SteelSteelDIN 4313555N1900000
     

    Extreme-Pressure Steel Threaded Pipe Locknuts

    Image of Product. Front orientation. Pipe Locknuts. Extreme-Pressure Steel Threaded Pipe Locknuts.
    The strongest steel locknuts we offer, these can withstand extreme-pressure applications.
    Locknuts thread onto the male end of a fitting to provide extra holding power so the fitting won’t loosen from vibration.
    For Pipe
    For
    Flange
    Pipe
    Size
    Dash
    Size
    Hex
    Wd.
    Lg.
    Gasket
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    For Use With
    Temp. Range,
    ° F
    Material
    Fabrication
    Schedule
    Material
    Class
    Material
    Each
    NPT Female
    1/8
    		025/8"3/16"PTFE
    		10,000 psi @ 72° F5,000 psi @ 500° FAir, Hydraulic Fluid, Natural Gas, Oil, Steam, Water-100 to 500Zinc-Yellow-Chromate-Plated SteelMachinedXXH
    		Steel1500
    		Steel5530K14000000
    1/4
    		043/4"9/32"PTFE
    		10,000 psi @ 72° F5,000 psi @ 500° FAir, Hydraulic Fluid, Natural Gas, Oil, Steam, Water-100 to 500Zinc-Yellow-Chromate-Plated SteelMachinedXXH
    		Steel1500
    		Steel5530K1600000
    3/8
    		067/8"9/32"PTFE
    		10,000 psi @ 72° F5,000 psi @ 500° FAir, Hydraulic Fluid, Natural Gas, Oil, Steam, Water-100 to 500Zinc-Yellow-Chromate-Plated SteelMachinedXXH
    		Steel1500
    		Steel5530K1800000
    1/2
    		081 1/8"19/64"PTFE
    		10,000 psi @ 72° F5,000 psi @ 500° FAir, Hydraulic Fluid, Natural Gas, Oil, Steam, Water-100 to 500Zinc-Yellow-Chromate-Plated SteelMachinedXXH
    		Steel1500
    		Steel5530K1900000
    3/4
    		121 5/16"19/64"PTFE
    		5,000 psi @ 72° F5,000 psi @ 500° FAir, Hydraulic Fluid, Natural Gas, Oil, Steam, Water-100 to 500Zinc-Yellow-Chromate-Plated SteelMachinedXXH
    		Steel1500
    		Steel5530K2100000
    1
    		161 5/8"25/64"PTFE
    		5,000 psi @ 72° F5,000 psi @ 500° FAir, Hydraulic Fluid, Natural Gas, Oil, Steam, Water-100 to 500Zinc-Yellow-Chromate-Plated SteelMachinedXXH
    		Steel1500
    		Steel5530K2300000
    1 1/4
    		202"25/64"PTFE
    		5,000 psi @ 72° F5,000 psi @ 500° FAir, Hydraulic Fluid, Natural Gas, Oil, Steam, Water-100 to 500Zinc-Yellow-Chromate-Plated SteelMachinedXXH
    		Steel1500
    		Steel5530K2500000
    1 1/2
    		242 1/4"25/64"PTFE
    		3,000 psi @ 72° F5,000 psi @ 500° FAir, Hydraulic Fluid, Natural Gas, Oil, Steam, Water-100 to 500Zinc-Yellow-Chromate-Plated SteelMachinedXXH
    		Steel1500
    		Steel5530K2700000
    2
    		322 3/4"27/64"PTFE
    		3,000 psi @ 72° F5,000 psi @ 500° FAir, Hydraulic Fluid, Natural Gas, Oil, Steam, Water-100 to 500Zinc-Yellow-Chromate-Plated SteelMachinedXXH
    		Steel1500
    		Steel5530K29000000
     

    Low-Pressure Galvanized Iron and Steel Threaded Pipe Locknuts

    Image of Product. Front orientation. Pipe Locknuts. Low-Pressure Galvanized Iron and Steel Threaded Pipe Locknuts.
    The galvanized finish on these locknuts provides fair corrosion resistance. Locknuts are for use in low-pressure applications.
    Locknuts thread onto the male end of a fitting to provide extra holding power so the fitting won’t loosen from vibration.
    NPSL Thread—NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.
    For Pipe
    For
    Flange
    Pipe
    Size
    Hex Wd.
    Lg.
    Max. Pressure
    @ Temp.
    Max. Steam
    Pressure @ Temp.
    For Use With
    Pressure
    Class
    Material
    Schedule
    Material
    Class
    Material
    Specs. Met
    Each
    NPSL Female
    1/4
    		27/32"1/4"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Galvanized Iron40
    		Galvanized Steel150
    		Galvanized SteelASME B16.144638K61200000
    3/8
    		1"0.28"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Galvanized Iron40
    		Galvanized Steel150
    		Galvanized SteelASME B16.144638K6130000
    1/2
    		1 3/16"0.31"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Galvanized Iron40
    		Galvanized Steel150
    		Galvanized SteelASME B16.144638K6140000
    3/4
    		1 7/16"0.34"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Galvanized Iron40
    		Galvanized Steel150
    		Galvanized SteelASME B16.144638K6150000
    1
    		1 3/4"0.38"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Galvanized Iron40
    		Galvanized Steel150
    		Galvanized SteelASME B16.144638K61600000
    1 1/4
    		2 3/32"0.42"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Galvanized Iron40
    		Galvanized Steel150
    		Galvanized SteelASME B16.144638K61700000
    1 1/2
    		2 11/32"0.47"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Galvanized Iron40
    		Galvanized Steel150
    		Galvanized SteelASME B16.144638K61800000
    2
    		2 7/8"0.53"Not RatedNot RatedAir, Natural Gas, Oil, Steam, Water150
    		Galvanized Iron40
    		Galvanized Steel150
    		Galvanized SteelASME B16.144638K61900000
     

    Steel Hex Panel Nuts

    Image of Product. Front orientation. Panel Nuts. Steel Hex Panel Nuts.
    Fasten these panel nuts with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels.
    NPSM ThreadAbout NPSM Thread
    Zinc-Plated Steel—Zinc-plated steel nuts resist corrosion in wet environments.
    Black-Oxide Steel—Black-oxide steel nuts have a dark surface color.
    Pipe
    Size
    Wd.
    Ht.
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1/8
    		5/8"1/8"Material Certificate
    		191862A10100000
    1/8
    		5/8"3/16"—191862A1040000
     
    Black-Oxide Steel
    1/4
    		11/16"1/4"Material Certificate
    		194162A1400000
    3/8
    		13/16"17/64"—194162A1700000
    3/8
    		13/16"9/32"—194162A1800000
    3/8
    		13/16"19/64"—194162A1900000
    1/2
    		1"21/64"—194162A2100000
     
    UNEF ThreadAbout UNEF Thread
    Zinc-Plated Steel—Zinc-plated steel nuts resist corrosion in wet environments.
    Black-Oxide Steel—Black-oxide steel nuts have a dark surface color.
    Thread
    Size
    Wd.
    Ht.
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1/4"-32
    		5/16"5/64"—1091862A10500000
    1/4"-32
    		3/8"3/32"Material Certificate
    		1091862A1060000
    5/16"-32
    		7/16"7/64"—1091862A1100000
    3/8"-32
    		5/8"3/32"—191862A1120000
    7/16"-28
    		5/8"3/32"Material Certificate
    		191862A1160000
    15/32"-32
    		9/16"5/64"—191862A1190000
    15/32"-32
    		5/8"3/32"—191862A1230000
    15/32"-32
    		5/8"9/16"—191862A1260000
    1/2"-28
    		5/8"3/32"—191862A1270000
     
    Black-Oxide Steel
    3/8"-32
    		1/2"3/32"—194162A3100000
    7/16"-28
    		5/8"3/32"—194162A3600000
    1/2"-28
    		5/8"3/32"—194162A4300000
    1/2"-28
    		5/8"1/8"—194162A4400000
    1/2"-28
    		3/4"3/8"—194162A45000000
    5/8"-24
    		15/16"3/8"Material Certificate
    		194162A46000000
    11/16"-24
    		1"27/64"Material Certificate
    		194162A47000000
    3/4"-20
    		1"27/64"Material Certificate
    		194162A48000000
    7/8"-20
    		1 5/16"31/64"Material Certificate
    		194162A49000000
     
    UNS ThreadAbout UNS Thread
    Zinc-Plated Steel—Zinc-plated steel nuts resist corrosion in wet environments.
    Black-Oxide Steel—Black-oxide steel nuts have a dark surface color.
    Thread
    Size
    Wd.
    Ht.
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1/4"-40
    		5/8"3/16"—191862A10800000
    5/8"-27
    		3/4"1/8"Material Certificate
    		191862A1290000
     
    Black-Oxide Steel
    1/4"-40
    		5/16"1/16"—194162A5100000
    1/4"-40
    		5/8"3/16"—194162A5200000
    5/8"-27
    		3/4"1/8"—194162A5300000
     
    Metric ThreadAbout Metric Thread
    Zinc-Plated Steel—Zinc-plated steel nuts resist corrosion in wet environments.
    Thread Size
    Wd.,
    mm
    Ht.,
    mm
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    M12 × 1.5 mm176191862A71100000
    M14 × 1.5 mm196191862A7120000
    M16 × 1.5 mm226191862A7130000
    M18 × 1.5 mm246191862A7140000
    M20 × 1.5 mm276191862A7150000
    M24 × 1.5 mm327191862A7160000
    M26 × 1.5 mm368191862A71700000
     

    Steel Round Knurled-Grip Panel Nuts

    Image of Product. Front orientation. Panel Nuts. Steel Round Knurled-Grip Panel Nuts.
    These panel nuts are knurled to provide a secure grip for tightening and loosening by hand. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels. They're zinc plated to resist corrosion in wet environments.
    UNEF ThreadAbout UNEF Thread
    Thread
    Size
    Dia.
    Ht.
    Each
    Zinc-Plated Steel
    3/8"-32
    		5/8"3/32"91843A10900000
    15/32"-32
    		5/8"3/32"91843A1180000
     
    UNS ThreadAbout UNS Thread
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Thread
    Size
    Dia.
    Ht.
    Certificate Type
    Each
    Zinc-Plated Steel
    5/8"-27
    		3/4"1/8"Material Certificate
    		91843A12300000
     
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