Skip to content
Free shipping on all orders!
Free shipping on all orders!

Lock Nuts

  • Original price $4.26 - Original price $4.26
    Original price
    $4.26
    $4.26 - $4.26
    Current price $4.26

    5/16"-18 Black Oxide Steel Coarse Thread Nylon Insert Lock Nuts (8 pcs.)

    centurytool.store
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: Black OxideDriver Type: 9/16" WrenchThread Size: 18 (Coarse)Style: Nylon In...

    View full details
    Original price $4.26 - Original price $4.26
    Original price
    $4.26
    $4.26 - $4.26
    Current price $4.26
  • Original price $5.98 - Original price $9.13
    Original price
    $5.98 - $9.13
    $5.98 - $9.13
    Current price $5.98

    3/8"-16 Zinc Plated Grade 8 Steel Coarse Thread Nylon Insert Lock Nuts

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 15/32"Material: SteelFinish: Yellow ZincDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: Grade...

    View full details
    Original price $5.98 - Original price $9.13
    Original price
    $5.98 - $9.13
    $5.98 - $9.13
    Current price $5.98
  • Original price $5.19 - Original price $5.19
    Original price
    $5.19
    $5.19 - $5.19
    Current price $5.19

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

    centurytool.store
    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 $5.19 - Original price $5.19
    Original price
    $5.19
    $5.19 - $5.19
    Current price $5.19
  • Original price $6.59 - Original price $6.59
    Original price
    $6.59
    $6.59 - $6.59
    Current price $6.59

    3/8"-16 Zinc Plated Grade 2 Steel Coarse Thread Lock Nuts (16 pcs.)

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 21/64"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: Grade 2Style...

    View full details
    Original price $6.59 - Original price $6.59
    Original price
    $6.59
    $6.59 - $6.59
    Current price $6.59
  • Original price $4.46 - Original price $4.46
    Original price
    $4.46
    $4.46 - $4.46
    Current price $4.46

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

    centurytool.store
    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 $4.46 - Original price $4.46
    Original price
    $4.46
    $4.46 - $4.46
    Current price $4.46
  • Original price $18.37 - Original price $18.37
    Original price
    $18.37
    $18.37 - $18.37
    Current price $18.37

    3/8"-16 Black Phosphate Grade 2 Nylon Insert Lock Nuts (286 pcs.)

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 15/32"Material: SteelFinish: Black PhosphateDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: G...

    View full details
    Original price $18.37 - Original price $18.37
    Original price
    $18.37
    $18.37 - $18.37
    Current price $18.37
  • Original price $5.73 - Original price $7.67
    Original price
    $5.73 - $7.67
    $5.73 - $7.67
    Current price $5.73

    3/8"-24 Zinc Plated Grade 2 Steel Fine Thread Nylon Insert Lock Nuts

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 15/32"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 24 (Fine)Hardness: Grade 2Style: ...

    View full details
    Original price $5.73 - Original price $7.67
    Original price
    $5.73 - $7.67
    $5.73 - $7.67
    Current price $5.73
  • Original price $5.58 - Original price $11.84
    Original price
    $5.58 - $11.84
    $5.58 - $11.84
    Current price $5.58

    3/8"-16 Zinc Plated Grade 2 Steel Coarse Thread Kep Lock Nuts

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 3/8"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: Grade 2Style: ...

    View full details
    Original price $5.58 - Original price $11.84
    Original price
    $5.58 - $11.84
    $5.58 - $11.84
    Current price $5.58
  • Original price $4.96 - Original price $8.8
    Original price
    $4.96 - $8.8
    $4.96 - $8.8
    Current price $4.96

    3/8"-16 Zinc Plated Grade 2 Steel Coarse Thread Lock Nuts

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 21/64"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: Grade 2Style...

    View full details
    Original price $4.96 - Original price $8.8
    Original price
    $4.96 - $8.8
    $4.96 - $8.8
    Current price $4.96
  • Original price $5.13 - Original price $9.37
    Original price
    $5.13 - $9.37
    $5.13 - $9.37
    Current price $5.13

    3/8"-16 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 15/32"Material: Stainless SteelDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: 18-8Style: Wax...

    View full details
    Original price $5.13 - Original price $9.37
    Original price
    $5.13 - $9.37
    $5.13 - $9.37
    Current price $5.13
  • Original price $5.63 - Original price $6.31
    Original price
    $5.63 - $6.31
    $5.63 - $6.31
    Current price $5.63

    3/8"-16 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 15/32"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: Grade 2Style...

    View full details
    Original price $5.63 - Original price $6.31
    Original price
    $5.63 - $6.31
    $5.63 - $6.31
    Current price $5.63
  • Original price $5.63 - Original price $7.28
    Original price
    $5.63 - $7.28
    $5.63 - $7.28
    Current price $5.63

    3/8"-16 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 15/32"Material: Stainless SteelDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: 18-8Style: Wax...

    View full details
    Original price $5.63 - Original price $7.28
    Original price
    $5.63 - $7.28
    $5.63 - $7.28
    Current price $5.63
  • Original price $9.06 - Original price $9.06
    Original price
    $9.06
    $9.06 - $9.06
    Current price $9.06

    5/16"-18 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts (10 pcs.)

    centurytool.store
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 1/4"Material: SteelFinish: ChromeDriver Type: 9/16" WrenchThread Size: 18 (Coarse)Style: Thin PatternTyp...

    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 $9.06 - Original price $9.06
    Original price
    $9.06
    $9.06 - $9.06
    Current price $9.06

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

    centurytool.store
    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
    Original price $9.06 - Original price $9.06
    Original price
    $9.06
    $9.06 - $9.06
    Current price $9.06
  • Original price $5.55 - Original price $5.55
    Original price
    $5.55
    $5.55 - $5.55
    Current price $5.55

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

    centurytool.store
    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
    Original price $5.55 - Original price $5.55
    Original price
    $5.55
    $5.55 - $5.55
    Current price $5.55
  • Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38

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

    centurytool.store
    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
    Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38
  • Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38

    3/8"-24 Polished 18-8 Stainless Nylon Insert Lock Nuts (5 pcs.)

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 5/8"Thickness: 7/16"Material: Stainless SteelFinish: PolishedDriver Type: 9/16" WrenchThread Size: 24 (Fine)Hardness: 18-...

    View full details
    Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38
  • Original price $5.16 - Original price $5.16
    Original price
    $5.16
    $5.16 - $5.16
    Current price $5.16

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

    centurytool.store
    10+ in stock

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

    View full details
    Original price $5.16 - Original price $5.16
    Original price
    $5.16
    $5.16 - $5.16
    Current price $5.16
  • Original price $4.6 - Original price $4.6
    Original price
    $4.6
    $4.6 - $4.6
    Current price $4.6

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

    centurytool.store
    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 $4.6 - Original price $4.6
    Original price
    $4.6
    $4.6 - $4.6
    Current price $4.6
  • Original price $6.11 - Original price $6.11
    Original price
    $6.11
    $6.11 - $6.11
    Current price $6.11

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

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 5/8"Thickness: 13/32"Material: Stainless SteelDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: 18-8Style: KepTy...

    View full details
    Original price $6.11 - Original price $6.11
    Original price
    $6.11
    $6.11 - $6.11
    Current price $6.11
  • Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38

    3/8"-16 Black Chrome Nylon Insert Lock Nuts (5 pcs.)

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 15/32"Material: SteelFinish: Black ChromeDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Style: Nylon I...

    View full details
    Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38
  • Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38

    3/8"-24 Black Chrome Plated Steel Fine Thread Nylon Insert Lock Nuts (5 pcs.)

    centurytool.store
    10+ in stock

    Diameter: 3/8"Diameter 2: 21/32"Thickness: 15/32"Material: SteelFinish: Black ChromeDriver Type: 9/16" WrenchThread Size: 24 (Fine)Style: Nylon Ins...

    View full details
    Original price $6.38 - Original price $6.38
    Original price
    $6.38
    $6.38 - $6.38
    Current price $6.38
  • Original price $6.74 - Original price $6.74
    Original price
    $6.74
    $6.74 - $6.74
    Current price $6.74

    3/8"-16 18-8 Stainless Steel Coarse Thread Type C Lock Nuts (10 pcs.)

    centurytool.store
    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: Type ...

    View full details
    Original price $6.74 - Original price $6.74
    Original price
    $6.74
    $6.74 - $6.74
    Current price $6.74
  • Original price $6.68 - Original price $6.68
    Original price
    $6.68
    $6.68 - $6.68
    Current price $6.68

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

    centurytool.store
    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: Type CT...

    View full details
    Original price $6.68 - Original price $6.68
    Original price
    $6.68
    $6.68 - $6.68
    Current price $6.68