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    67 Products

    Nylon-Insert Locknuts

    Image of Product. Front orientation. Locknuts. Nylon-Insert Locknuts.
    Versatile yet economical, these are the most commonly used locknuts. The nylon insert grips the screw to prevent loosening from moderate vibration without damaging threads. However, the insert may become brittle if exposed to high temperatures. These locknuts are reusable a handful of times, but the holding power decreases with each use.
    Lightweight Aluminum
    6061 Aluminum—One-third the weight of steel, these nuts are commonly used in robotics, automation, and other applications that have weight limitations. They're an alternative to stainless steel for rust resistance but are not as strong.
    Thread
    Size
    Wd.
    Ht.
    Insert Max.
    Temp., ° F
    Pkg.
    Qty.
    Pkg.
    6061 Aluminum
    8-32
    		11/32"15/64"1852595856A21500000
    10-24
    		3/8"15/64"1852595856A2250000
    10-32
    		3/8"15/64"1852595856A2350000
    1/4"-20
    		7/16"5/16"1852595856A2450000
    5/16"-18
    		1/2"11/32"1852595856A2550000
    3/8"-16
    		9/16"29/64"1851095856A2650000
    1/2"-13
    		3/4"19/32"185595856A2750000
     

    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.
    Aluminum—One-third the weight of steel that's the same size. Aluminum is also nonmagnetic to prevent electrical interference in nearby equipment.
    Pipe
    Size
    Each
    NPSM Thread
     
    Aluminum
    1/2
    		9147T12300000
    3/4
    		9147T1240000
    1
    		9147T1250000
    1 1/4
    		9147T1260000
    1 1/2
    		9147T12700000
    2
    		9147T12800000
     
    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"ManualSerratedSteelFlatNo4642N11000000
     

    Low-Pressure Aluminum Threaded Pipe Locknuts

    Image of Product. Front orientation. Pipe Locknuts. Low-Pressure Aluminum Threaded Pipe Locknuts.
    In addition to being lightweight, these aluminum locknuts offer good corrosion resistance. Use them in low-pressure flow applications. To prevent cracking, do not tighten more than a 1/4-turn past hand tight.
    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.
    For Use With
    Pressure
    Class
    Material
    Schedule
    Material
    Class
    Material
    Each
    NPSL Female
    1/4
    		15/16"5/32"150 psi @ 72° FAir, Oil, Water150
    		6061 Aluminum40
    		Aluminum125
    		Aluminum44705K41200000
    3/8
    		1 1/8"3/16"150 psi @ 72° FAir, Oil, Water150
    		6061 Aluminum40
    		Aluminum125
    		Aluminum44705K4130000
    1/2
    		1 3/8"1/4"150 psi @ 72° FAir, Oil, Water150
    		356 Aluminum40
    		Aluminum125
    		Aluminum44705K4140000
    3/4
    		1 5/8"5/16"150 psi @ 72° FAir, Oil, Water150
    		356 Aluminum40
    		Aluminum125
    		Aluminum44705K41500000
    1
    		2"3/8"150 psi @ 72° FAir, Oil, Water150
    		356 Aluminum40
    		Aluminum125
    		Aluminum44705K41600000
    1 1/4
    		2 3/8"7/16"150 psi @ 72° FAir, Oil, Water150
    		356 Aluminum40
    		Aluminum125
    		Aluminum44705K41700000
    1 1/2
    		2 3/4"1/2"150 psi @ 72° FAir, Oil, Water150
    		356 Aluminum40
    		Aluminum125
    		Aluminum44705K41800000
    2
    		3 3/8"5/8"150 psi @ 72° FAir, Oil, Water150
    		356 Aluminum40
    		Aluminum125
    		Aluminum44705K41900000
    2 1/2
    		3 3/4"3/4"150 psi @ 72° FAir, Oil, Water150
    		356 Aluminum40
    		Aluminum125
    		Aluminum44705K33100000
    3
    		4 1/2"15/16"150 psi @ 72° FAir, Oil, Water150
    		356 Aluminum40
    		Aluminum125
    		Aluminum44705K33200000
     

    Press-Fit Nuts for Sheet Metal

    Image of Product. Front orientation. Press-Fit Nuts. Press-Fit Nuts for Sheet Metal.
    Image of Product. Bottom orientation. Press-Fit Nuts. Press-Fit Nuts for Sheet Metal.
    Add permanent threads to thin panels in seconds. The knurls on these clinch-style nuts deform and grip sheet metal to create a permanent hold. Push them into a drilled or punched hole with an arbor press around your workpiece to install—no messy welding required.
    Lightweight Aluminum—At one-third the weight of steel, use these nuts in robotics, aerospace parts, and other applications with strict weight limits. They resist rust about as well as stainless steel but aren't as strong, so they're best for installation in aluminum panels.
    Press-Fit Nuts
    Installation
    Tool
    Head
    Thread Size
    Drill Bit
    Size
    For Min.
    Panel Thk.
    For Maximum Panel
    Hardness
    OD
    Ht.
    PEM® Part
    No.
    Head
    Shape
    Pkg.
    Qty.
    Pkg.
    Each
     
    Lightweight Aluminum
    2-56
    		19 Ga.
    		0.04"Brinell 80, Rockwell B500.25"0.07"CLA-256-1Round2592268A11000000090818A1010000000
    2-56
    		19 Ga.
    		0.056"Brinell 80, Rockwell B500.25"0.07"CLA-256-2Round2592268A1200000090818A101000000
    4-40
    		3/16"
    		0.04"Brinell 80, Rockwell B500.25"0.09"CLA-440-1Round2592268A130000090818A101000000
    4-40
    		3/16"
    		0.056"Brinell 80, Rockwell B500.25"0.09"CLA-440-2Round2592268A140000090818A101000000
    6-32
    		3 Ga.
    		0.04"Brinell 80, Rockwell B500.28"0.09"CLA-632-1Round2592268A150000090818A101000000
    6-32
    		3 Ga.
    		0.056"Brinell 80, Rockwell B500.28"0.09"CLA-632-2Round2592268A160000090818A101000000
    8-32
    		A
    		0.04"Brinell 80, Rockwell B500.31"0.16"CLA-832-1Round2592268A170000090818A101000000
    8-32
    		A
    		0.056"Brinell 80, Rockwell B500.31"0.16"CLA-832-2Round2592268A180000090818A101000000
    10-24
    		19/64"
    		0.056"Brinell 80, Rockwell B500.37"0.16"CLA-024-2Round1092268A190000090818A101000000
    10-32
    		19/64"
    		0.04"Brinell 80, Rockwell B500.37"0.16"CLA-032-1Round2592268A210000090818A101000000
    10-32
    		19/64"
    		0.056"Brinell 80, Rockwell B500.37"0.16"CLA-032-2Round2592268A2200000———0
    1/4"-20
    		11/32"
    		0.056"Brinell 80, Rockwell B500.44"0.17"CLA-0420-1Round1092268A2300000———0
    1/4"-20
    		11/32"
    		0.091"Brinell 80, Rockwell B500.44"0.17"CLA-0420-2Round1092268A2400000———0
    1/4"-20
    		11/32"
    		0.125"Brinell 80, Rockwell B500.44"0.17"CLA-0420-3Round1092268A2500000———0
    M2 x 0.5 mm19 Ga.
    		1 mmBrinell 80, Rockwell B506.35 mm1.5 mmCLA-M2-1Round2592268A2600000090818A102000000
    M2 x 0.5 mm19 Ga.
    		1.4 mmBrinell 80, Rockwell B506.35 mm1.5 mmCLA-M2-2Round2592268A2700000090818A102000000
    M3 x 0.5 mm3/16"
    		1 mmBrinell 80, Rockwell B506.35 mm2 mmCLA-M3-1Round2592268A280000090818A102000000
    M3 x 0.5 mm3/16"
    		1.4 mmBrinell 80, Rockwell B506.35 mm2 mmCLA-M3-2Round2592268A290000090818A102000000
    M3.5 x 0.6 mm3 Ga.
    		1.4 mmBrinell 80, Rockwell B507.11 mm2 mmCLA-M3.5-2Round1092268A310000090818A102000000
    M4 x 0.7 mmA
    		1 mmBrinell 80, Rockwell B507.8 mm3 mmCLA-M4-1Round2592268A320000090818A102000000
    M4 x 0.7 mmA
    		1.4 mmBrinell 80, Rockwell B507.8 mm3 mmCLA-M4-2Round2592268A330000090818A102000000
    M5 x 0.8 mm19/64"
    		1.4 mmBrinell 80, Rockwell B509.4 mm3.8 mmCLA-M5-2Round2592268A3400000———0
    M6 x 1 mm11/32"
    		1.4 mmBrinell 80, Rockwell B5011.18 mm4.08 mmCLA-M6-1Round1092268A3500000———0
    M6 x 1 mm11/32"
    		2.3 mmBrinell 80, Rockwell B5011.18 mm4.08 mmCLA-M6-2Round1092268A3600000———0
     

    Breakaway Tamper-Resistant Nuts

    Image of ProductInUse. Back orientation. Contains Inset. Tamper-Resistant Nuts. Breakaway.
    Image of Product. Bottom orientation. Tamper-Resistant Nuts. Breakaway.
    The most tamper-resistant nuts we offer, these have a hex head that breaks away upon tightening, leaving a non-removable cone. They can be installed using a standard wrench. Use them to reduce the risk of unwanted removal for objects in public spaces such as signs, lighting fixtures, and displays.
    Aluminum—Aluminum nuts are lightweight, corrosion resistant in wet environments, and nonmagnetic.
    Thread
    Size
    Wd.
    Ht.
    Ht. After
    Installation
    Breaking Torque,
    in·lbf
    Pkg.
    Qty.
    Pkg.
    Aluminum
    10-24
    		7/16"3/8"3/16"401090013A15000000
    1/4"-20
    		9/16"31/64"7/32"701090013A1750000
    5/16"-18
    		5/8"1/2"7/32"1501090013A20000000
    3/8"-16
    		3/4"19/32"1/4"1951090013A22500000
     

    Serrated-Edge-Drive Tamper-Resistant Nuts

    Image of Product. Front orientation. Tamper-Resistant Nuts. Serrated-Edge-Drive Tamper-Resistant Nuts.
    These nuts have serrations that dig into the material surface to resist loosening and are narrow to fit in tight spaces. They must be installed with a nutdriver (sold separately). Use them to reduce the risk of unwanted removal for objects in public spaces such as signs, lighting fixtures, and displays.
    Aluminum—Aluminum nuts are lightweight, corrosion resistant in wet environments, and nonmagnetic.
    Nuts
    Serrated-Edge
    Nutdrivers
    Thread
    Size
    Dia.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Each
    Aluminum
    10-24
    		1/2"3/16"2598577A11000000098577A200000000
    1/4"-20
    		1/2"3/16"1098577A120000098577A20000000
    5/16"-18
    		1/2"3/16"1098577A130000098577A20000000
     

    Split Lock Washers

    Image of Product. Front orientation. Lock Washers. Split-Lock Washer.
    Stop nuts and screws from loosening due to mild vibration. As you tighten, the uneven ends bite into the nut or screw so it won't back out. While they're not as vibration resistant as other lock washers, they are a great fit for electrical panels, light fixtures, and other light duty assemblies. Split lock washers are not reusable, and they only work with fasteners that have right-hand threads.
    Aluminum—One-third the weight of steel, these washers are commonly used for assemblies that have weight limits. They're an alternative to stainless steel for rust resistance, but aren't as strong.
    For Screw
    Size
    ID
    OD
    Thk.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Aluminum
    No. 6
    		0.148"0.250"0.031"ASME B18.21.110091013A71100000
    No. 8
    		0.174"0.293"0.040"ASME B18.21.110091013A7150000
    No. 10
    		0.200"0.334"0.047"ASME B18.21.110091013A7180000
    1/4"
    		0.260"0.487"0.062"ASME B18.21.110091013A72100000
    5/16"
    		0.322"0.583"0.078"ASME B18.21.15091013A7240000
    3/8"
    		0.385"0.680"0.094"ASME B18.21.15091013A72700000
    1/2"
    		0.512"0.869"0.125"ASME B18.21.11091013A7300000
    5/8"
    		0.641"1.073"0.156"ASME B18.21.11091013A73300000
    3/4"
    		0.766"1.265"0.188"ASME B18.21.11091013A73600000
     
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