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

Lock Nuts

  • Original price $10.38 - Original price $10.38
    Original price
    $10.38
    $10.38 - $10.38
    Current price $10.38

    3/8"-24 18-8 Stainless Steel Fine Thread Serrated Lock Nuts (5 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 3/8"Diameter 2: 5/8"Thickness: 11/32"Material: Stainless SteelDriver Type: 9/16" WrenchThread Size: 24 (Fine)Hardness: 18-8Style: Serrate...

    View full details
    Original price $10.38 - Original price $10.38
    Original price
    $10.38
    $10.38 - $10.38
    Current price $10.38
  • Original price $9.15 - Original price $9.15
    Original price
    $9.15
    $9.15 - $9.15
    Current price $9.15

    1/4"-28 Zinc Plated Steel Fine Thread Serrated Lock Nuts (15 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/4"Diameter 2: 19/32"Thickness: 1/4"Material: SteelFinish: ZincDriver Type: 7/16" WrenchThread Size: 28 (Fine)Style: SerratedType: Flang...

    View full details
    Original price $9.15 - Original price $9.15
    Original price
    $9.15
    $9.15 - $9.15
    Current price $9.15
  • Original price $8.91 - Original price $8.91
    Original price
    $8.91
    $8.91 - $8.91
    Current price $8.91

    3/8"-24 Zinc Plated Steel Fine Thread Serrated Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 3/8"Diameter 2: 9/16"Thickness: 11/32"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 24 (Fine)Style: SerratedType: Flan...

    View full details
    Original price $8.91 - Original price $8.91
    Original price
    $8.91
    $8.91 - $8.91
    Current price $8.91
  • Original price $8.72 - Original price $8.72
    Original price
    $8.72
    $8.72 - $8.72
    Current price $8.72

    #8-32 18-8 Stainless Steel Coarse Thread Serrated Lock Nuts (15 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: #8Diameter 2: 3/8"Thickness: 3/16"Material: Stainless SteelDriver Type: 11/32" WrenchThread Size: 32 (Coarse)Hardness: 18-8Style: Serrate...

    View full details
    Original price $8.72 - Original price $8.72
    Original price
    $8.72
    $8.72 - $8.72
    Current price $8.72
  • Original price $8.49 - Original price $8.49
    Original price
    $8.49
    $8.49 - $8.49
    Current price $8.49

    #10-24 18-8 Stainless Steel Coarse Thread Serrated Lock Nuts (15 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: #10Diameter 2: 7/16"Thickness: 3/16"Material: Stainless SteelDriver Type: 3/8" WrenchThread Size: 24 (Coarse)Hardness: 18-8Style: Serrate...

    View full details
    Original price $8.49 - Original price $8.49
    Original price
    $8.49
    $8.49 - $8.49
    Current price $8.49
  • Original price $8.72 - Original price $8.72
    Original price
    $8.72
    $8.72 - $8.72
    Current price $8.72

    1/4"-20 18-8 Stainless Steel Coarse Thread Serrated Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/4"Diameter 2: 1/2"Thickness: 1/4"Material: Stainless SteelDriver Type: 7/16" WrenchThread Size: 20 (Coarse)Hardness: 18-8Style: Serrate...

    View full details
    Original price $8.72 - Original price $8.72
    Original price
    $8.72
    $8.72 - $8.72
    Current price $8.72
  • Original price $8.74 - Original price $8.74
    Original price
    $8.74
    $8.74 - $8.74
    Current price $8.74

    5/16"-18 18-8 Stainless Steel Coarse Thread Serrated Lock Nuts (8 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 9/32"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: 18-8Style: Serra...

    View full details
    Original price $8.74 - Original price $8.74
    Original price
    $8.74
    $8.74 - $8.74
    Current price $8.74
  • Original price $9.20 - Original price $9.20
    Original price
    $9.20
    $9.20 - $9.20
    Current price $9.20

    3/8"-16 18-8 Stainless Steel Coarse Thread Serrated Lock Nuts (8 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 3/8"Diameter 2: 5/8"Thickness: 11/32"Material: Stainless SteelDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: 18-8Style: Serra...

    View full details
    Original price $9.20 - Original price $9.20
    Original price
    $9.20
    $9.20 - $9.20
    Current price $9.20
  • Original price $11.93 - Original price $11.93
    Original price
    $11.93
    $11.93 - $11.93
    Current price $11.93

    1/2"-13 18-8 Stainless Steel Coarse Thread Serrated Lock Nuts (6 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/2"Diameter 2: 27/32"Thickness: 15/32"Material: Stainless SteelDriver Type: 3/4" WrenchThread Size: 13 (Coarse)Hardness: 18-8Style: Serr...

    View full details
    Original price $11.93 - Original price $11.93
    Original price
    $11.93
    $11.93 - $11.93
    Current price $11.93
  • Original price $9.06 - Original price $9.06
    Original price
    $9.06
    $9.06 - $9.06
    Current price $9.06

    #10-32 18-8 Stainless Steel Fine Thread Serrated Lock Nuts (15 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: #10Diameter 2: 7/16"Thickness: 3/16"Material: Stainless SteelDriver Type: 3/8" WrenchThread Size: 32 (Fine)Hardness: 18-8Style: SerratedT...

    View full details
    Original price $9.06 - Original price $9.06
    Original price
    $9.06
    $9.06 - $9.06
    Current price $9.06
  • Original price $10.02 - Original price $10.02
    Original price
    $10.02
    $10.02 - $10.02
    Current price $10.02

    5/16"-24 18-8 Stainless Steel Fine Thread Serrated Lock Nuts (6 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 9/32"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 24 (Fine)Hardness: 18-8Style: Serrate...

    View full details
    Original price $10.02 - Original price $10.02
    Original price
    $10.02
    $10.02 - $10.02
    Current price $10.02
  • Original price $9.64 - Original price $9.64
    Original price
    $9.64
    $9.64 - $9.64
    Current price $9.64

    #10-32 Zinc Plated Steel Fine Thread Serrated Lock Nuts (20 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: #10Diameter 2: 1/2"Thickness: 7/32"Material: SteelFinish: ZincDriver Type: 3/8" WrenchThread Size: 32 (Fine)Style: SerratedType: Flange N...

    View full details
    Original price $9.64 - Original price $9.64
    Original price
    $9.64
    $9.64 - $9.64
    Current price $9.64
  • Original price $8.94 - Original price $8.94
    Original price
    $8.94
    $8.94 - $8.94
    Current price $8.94

    5/16"-24 Zinc Plated Steel Fine Thread Serrated Lock Nuts (12 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 11/16"Thickness: 9/32"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 24 (Fine)Style: SerratedType: Flan...

    View full details
    Original price $8.94 - Original price $8.94
    Original price
    $8.94
    $8.94 - $8.94
    Current price $8.94
  • Original price $9.09 - Original price $9.09
    Original price
    $9.09
    $9.09 - $9.09
    Current price $9.09

    1/2"-20 Zinc Plated Steel Fine Thread Serrated Lock Nuts (6 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/2"Diameter 2: 1-1/32"Thickness: 15/32"Material: SteelFinish: ZincDriver Type: 3/4" WrenchThread Size: 20 (Fine)Style: SerratedType: Fla...

    View full details
    Original price $9.09 - Original price $9.09
    Original price
    $9.09
    $9.09 - $9.09
    Current price $9.09
  • Original price $9.93 - Original price $9.93
    Original price
    $9.93
    $9.93 - $9.93
    Current price $9.93

    5/8"-18 Zinc Plated Steel Fine Thread Serrated Lock Nuts (5 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/8"Diameter 2: 1-9/32"Thickness: 9/16"Material: SteelFinish: ZincDriver Type: 15/16" WrenchThread Size: 18 (Fine)Style: SerratedType: Fl...

    View full details
    Original price $9.93 - Original price $9.93
    Original price
    $9.93
    $9.93 - $9.93
    Current price $9.93