Skip to content
Free shipping on orders $250 and up!
Free shipping on orders $250 and up!

Lock Nuts

  • 1/4"-28 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts
    $17.50 - $17.50
    $17.50
    $17.50 - $17.50
    $17.50

    1/4"-28 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/4"Diameter 2: 1/2"Thickness: 7/32"Material: SteelFinish: ChromeDriver Type: 7/16" WrenchThread Size: 28 (Fine)Style: Thin PatternType: ...

    View full details
    $17.50 - $17.50
    $17.50
    $17.50 - $17.50
    $17.50
  • 5/16"-24 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts
    $18.12 - $18.12
    $18.12
    $18.12 - $18.12
    $18.12

    5/16"-24 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 1/4"Material: SteelFinish: ChromeDriver Type: 9/16" WrenchThread Size: 24 (Fine)Style: Thin PatternType:...

    View full details
    $18.12 - $18.12
    $18.12
    $18.12 - $18.12
    $18.12
  • 3/8"-24 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts
    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95

    3/8"-24 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 3/8"Diameter 2: 5/8"Thickness: 9/32"Material: SteelFinish: ChromeDriver Type: 5/8" WrenchThread Size: 24 (Fine)Style: Thin PatternType: L...

    View full details
    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95
  • 7/16"-20 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts
    $23.58 - $23.58
    $23.58
    $23.58 - $23.58
    $23.58

    7/16"-20 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 7/16"Diameter 2: 23/32"Thickness: 5/16"Material: SteelFinish: ChromeDriver Type: 5/8" WrenchThread Size: 20 (Fine)Style: Thin PatternType...

    View full details
    $23.58 - $23.58
    $23.58
    $23.58 - $23.58
    $23.58
  • 5/16"-18 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts
    $10.65 - $10.65
    $10.65
    $10.65 - $10.65
    $10.65

    5/16"-18 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts (15 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 11/16"Thickness: 3/8"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 5Style: ...

    View full details
    $10.65 - $10.65
    $10.65
    $10.65 - $10.65
    $10.65
  • 3/8"-16 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts
    $11.09 - $11.09
    $11.09
    $11.09 - $11.09
    $11.09

    3/8"-16 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts (12 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 3/8"Diameter 2: 13/16"Thickness: 7/16"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: Grade 5Style:...

    View full details
    $11.09 - $11.09
    $11.09
    $11.09 - $11.09
    $11.09
  • 1/2"-13 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts
    $13.76 - $13.76
    $13.76
    $13.76 - $13.76
    $13.76

    1/2"-13 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts (8 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/2"Diameter 2: 1-1/16"Thickness: 9/16"Material: SteelFinish: ZincDriver Type: 3/4" WrenchThread Size: 13 (Coarse)Hardness: Grade 5Style:...

    View full details
    $13.76 - $13.76
    $13.76
    $13.76 - $13.76
    $13.76
  • 5/8"-11 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts
    $13.09 - $13.09
    $13.09
    $13.09 - $13.09
    $13.09

    5/8"-11 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts (5 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/8"Diameter 2: 1-5/16"Thickness: 11/16"Material: SteelFinish: ZincDriver Type: 15/16" WrenchThread Size: 11 (Coarse)Hardness: Grade 5Sty...

    View full details
    $13.09 - $13.09
    $13.09
    $13.09 - $13.09
    $13.09
  • 5mm-0.8 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts
    $10.25 - $12.01
    $10.25 - $12.01
    $10.25 - $12.01
    $10.25

    5mm-0.8 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: 5mmDiameter 2: 9mmThickness: 7mmMaterial: SteelFinish: ZincDriver Type: #8 WrenchThread Size: 0.8mm (Coarse)Hardness: Class 8Style: Nylon...

    View full details
    $10.25 - $12.01
    $10.25 - $12.01
    $10.25 - $12.01
    $10.25
  • 6mm-1.0 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts
    $10.65 - $14.55
    $10.65 - $14.55
    $10.65 - $14.55
    $10.65

    6mm-1.0 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: 6mmDiameter 2: 11mmThickness: 9mmMaterial: SteelFinish: ZincDriver Type: #10 WrenchThread Size: 1.0mm (Coarse)Hardness: Class 8Style: Nyl...

    View full details
    $10.65 - $14.55
    $10.65 - $14.55
    $10.65 - $14.55
    $10.65
  • 8mm-1.25 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts
    $12.86 - $12.86
    $12.86
    $12.86 - $12.86
    $12.86

    8mm-1.25 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: 8mmDiameter 2: 15mmThickness: 11mmMaterial: SteelFinish: ZincDriver Type: #13 WrenchThread Size: 1.25mm (Coarse)Hardness: Class 8Style: N...

    View full details
    $12.86 - $12.86
    $12.86
    $12.86 - $12.86
    $12.86
  • 12mm-1.75 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts
    $18.33 - $18.33
    $18.33
    $18.33 - $18.33
    $18.33

    12mm-1.75 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: 12mmDiameter 2: 20mmThickness: 16mmMaterial: SteelFinish: ZincDriver Type: #18 WrenchThread Size: 1.75mm (Coarse)Hardness: Class 8Style: ...

    View full details
    $18.33 - $18.33
    $18.33
    $18.33 - $18.33
    $18.33
  • 14mm-2.0 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts
    $18.56 - $18.56
    $18.56
    $18.56 - $18.56
    $18.56

    14mm-2.0 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: 14mmDiameter 2: 24mmThickness: 18mmMaterial: SteelFinish: Yellow ZincDriver Type: #21 WrenchThread Size: 2.0mm (Coarse)Hardness: Class 8S...

    View full details
    $18.56 - $18.56
    $18.56
    $18.56 - $18.56
    $18.56
  • 16mm-2.0 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts
    $18.36 - $18.36
    $18.36
    $18.36 - $18.36
    $18.36

    16mm-2.0 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: 16mmDiameter 2: 27mmThickness: 20mmMaterial: SteelFinish: ZincDriver Type: #24 WrenchThread Size: 2.0mm (Coarse)Hardness: Class 8Style: N...

    View full details
    $18.36 - $18.36
    $18.36
    $18.36 - $18.36
    $18.36
  • 20mm-2.5 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts
    $23.92 - $23.92
    $23.92
    $23.92 - $23.92
    $23.92

    20mm-2.5 Zinc Plated Class 8 Steel Coarse Thread Flange Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: 20mmDiameter 2: 34mmThickness: 25mmMaterial: SteelFinish: Yellow ZincDriver Type: #30 WrenchThread Size: 2.5mm (Coarse)Hardness: Class 8S...

    View full details
    $23.92 - $23.92
    $23.92
    $23.92 - $23.92
    $23.92
  • #8-32 Polished 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $15.93 - $15.93
    $15.93
    $15.93 - $15.93
    $15.93

    #8-32 Polished 18-8 Stainless Nylon Insert Lock Nuts (12 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: #8Diameter 2: 3/8"Thickness: 7/16"Material: Stainless SteelFinish: PolishedDriver Type: 11/32" WrenchThread Size: 32 (Coarse)Hardness: 18...

    View full details
    $15.93 - $15.93
    $15.93
    $15.93 - $15.93
    $15.93
  • 1/4"-20 Polished 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $14.31 - $14.31
    $14.31
    $14.31 - $14.31
    $14.31

    1/4"-20 Polished 18-8 Stainless Nylon Insert Lock Nuts (8 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/4"Diameter 2: 1/2"Thickness: 5/16"Material: Stainless SteelFinish: PolishedDriver Type: 7/16" WrenchThread Size: 20 (Coarse)Hardness: 1...

    View full details
    $14.31 - $14.31
    $14.31
    $14.31 - $14.31
    $14.31
  • 5/16"-18 Polished 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $12.82 - $12.82
    $12.82
    $12.82 - $12.82
    $12.82

    5/16"-18 Polished 18-8 Stainless Nylon Insert Lock Nuts (6 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 11/32"Material: Stainless SteelFinish: PolishedDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness:...

    View full details
    $12.82 - $12.82
    $12.82
    $12.82 - $12.82
    $12.82
  • 3/8"-16 Polished 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $12.75 - $12.75
    $12.75
    $12.75 - $12.75
    $12.75

    3/8"-16 Polished 18-8 Stainless Nylon Insert Lock Nuts (5 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 3/8"Diameter 2: 5/8"Thickness: 7/16"Material: Stainless SteelFinish: PolishedDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: 1...

    View full details
    $12.75 - $12.75
    $12.75
    $12.75 - $12.75
    $12.75
  • 7/16"-14 Polished 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $12.04 - $12.04
    $12.04
    $12.04 - $12.04
    $12.04

    7/16"-14 Polished 18-8 Stainless Nylon Insert Lock Nuts (4 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 7/16"Diameter 2: 23/32"Thickness: 15/32"Material: Stainless SteelFinish: PolishedDriver Type: 5/8" WrenchThread Size: 14 (Coarse)Hardness...

    View full details
    $12.04 - $12.04
    $12.04
    $12.04 - $12.04
    $12.04
  • 1/2"-13 Polished 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $11.48 - $11.48
    $11.48
    $11.48 - $11.48
    $11.48

    1/2"-13 Polished 18-8 Stainless Nylon Insert Lock Nuts (3 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/2"Diameter 2: 27/32"Thickness: 19/32"Material: Stainless SteelFinish: PolishedDriver Type: 3/4" WrenchThread Size: 13 (Coarse)Hardness:...

    View full details
    $11.48 - $11.48
    $11.48
    $11.48 - $11.48
    $11.48
  • 5/8"-11 Polished 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $12.42 - $12.42
    $12.42
    $12.42 - $12.42
    $12.42

    5/8"-11 Polished 18-8 Stainless Nylon Insert Lock Nuts (3 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/8"Diameter 2: 1-1/16"Thickness: 3/4"Material: Stainless SteelFinish: PolishedDriver Type: 15/16" WrenchThread Size: 11 (Coarse)Hardness...

    View full details
    $12.42 - $12.42
    $12.42
    $12.42 - $12.42
    $12.42
  • #10-32 Polished 18-8 Stainless Steel Fine Thread Nylon Insert Lock Nuts
    $15.78 - $15.78
    $15.78
    $15.78 - $15.78
    $15.78

    #10-32 Polished 18-8 Stainless Nylon Insert Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: #10Thickness: 1/4"Material: Stainless SteelFinish: PolishedDriver Type: 3/8" WrenchThread Size: 32 (Fine)Hardness: 18-8Nominal Size: #10S...

    View full details
    $15.78 - $15.78
    $15.78
    $15.78 - $15.78
    $15.78
  • 5/16"-24 Polished 18-8 Stainless Steel Fine Thread Nylon Insert Lock Nuts
    $12.82 - $12.82
    $12.82
    $12.82 - $12.82
    $12.82

    5/16"-24 Polished 18-8 Stainless Nylon Insert Lock Nuts (6 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 11/32"Material: Stainless SteelFinish: PolishedDriver Type: 1/2" WrenchThread Size: 24 (Fine)Hardness: 1...

    View full details
    $12.82 - $12.82
    $12.82
    $12.82 - $12.82
    $12.82