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

Lock Nuts

  • 5/8"-11 Zinc Plated Grade 2 Steel Coarse Thread Lock Nuts
    $10.54 - $20.60
    $10.54 - $20.60
    $10.54 - $20.60
    $10.54

    5/8"-11 Zinc Plated Grade 2 Steel Coarse Thread Lock Nuts LNS-374

    Monster Fastener
    10+ in stock

    Diameter: 5/8"Diameter 2: 1-7/32"Thickness: 35/64"Material: SteelFinish: ZincDriver Type: 15/16" WrenchThread Size: 11 (Coarse)Hardness: Grade 2Sty...

    View full details
    $10.54 - $20.60
    $10.54 - $20.60
    $10.54 - $20.60
    $10.54
  • 3/4"-10 Zinc Plated Grade 2 Steel Coarse Thread Lock Nuts
    $10.97 - $27.39
    $10.97 - $27.39
    $10.97 - $27.39
    $10.97

    3/4"-10 Zinc Plated Grade 2 Steel Coarse Thread Lock Nuts LNS-386

    Monster Fastener
    10+ in stock

    Diameter: 3/4"Diameter 2: 1-7/32"Thickness: 21/32"Material: SteelFinish: ZincDriver Type: 1-1/8" WrenchThread Size: 10 (Coarse)Hardness: Grade 2Sty...

    View full details
    $10.97 - $27.39
    $10.97 - $27.39
    $10.97 - $27.39
    $10.97
  • 7/8"-14 Zinc Plated Grade 2 Steel Fine Thread Nylon Insert Lock Nuts
    $14.28 - $25.56
    $14.28 - $25.56
    $14.28 - $25.56
    $14.28

    7/8"-14 Zinc Plated Grade 2 Steel Fine Thread Nylon Insert Lock Nuts LNS-395

    Monster Fastener
    10+ in stock

    Diameter: 7/8"Diameter 2: 1-7/16"Thickness: 1"Material: SteelFinish: ZincDriver Type: 1-5/16" WrenchThread Size: 14 (Fine)Hardness: Grade 2Style: N...

    View full details
    $14.28 - $25.56
    $14.28 - $25.56
    $14.28 - $25.56
    $14.28
  • #6-32 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
    $11.05 - $13.26
    $11.05 - $13.26
    $11.05 - $13.26
    $11.05

    #6-32 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: #6Diameter 2: 11/32"Thickness: 3/16"Material: SteelFinish: ZincDriver Type: 5/16" WrenchThread Size: 32 (Coarse)Hardness: Grade 2Style: N...

    View full details
    $11.05 - $13.26
    $11.05 - $13.26
    $11.05 - $13.26
    $11.05
  • #8-32 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
    $11.05 - $14.16
    $11.05 - $14.16
    $11.05 - $14.16
    $11.05

    #8-32 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: #8Diameter 2: 3/8"Thickness: 15/64"Material: SteelFinish: ZincDriver Type: 11/32" WrenchThread Size: 32 (Coarse)Hardness: Grade 2Style: N...

    View full details
    $11.05 - $14.16
    $11.05 - $14.16
    $11.05 - $14.16
    $11.05
  • #10-24 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
    $11.05 - $14.51
    $11.05 - $14.51
    $11.05 - $14.51
    $11.05

    #10-24 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: #10Diameter 2: 7/16"Thickness: 15/64"Material: SteelFinish: ZincDriver Type: 3/8" WrenchThread Size: 24 (Coarse)Hardness: Grade 2Style: N...

    View full details
    $11.05 - $14.51
    $11.05 - $14.51
    $11.05 - $14.51
    $11.05
  • $10.06 - $16.03
    $10.06 - $16.03
    $10.06 - $16.03
    $10.06

    #10-24 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts LNSS-131

    Monster Fastener
    10+ in stock

    Diameter: #10Thickness: 1/4"Material: Stainless SteelDriver Type: 3/8" WrenchThread Size: 24 (Coarse)Hardness: 18-8Style: Waxed Nylon InsertType: L...

    View full details
    $10.06 - $16.03
    $10.06 - $16.03
    $10.06 - $16.03
    $10.06
  • $10.08 - $22.36
    $10.08 - $22.36
    $10.08 - $22.36
    $10.08

    5/16"-18 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts LNSS-149

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 11/32"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: 18-8Style: Waxe...

    View full details
    $10.08 - $22.36
    $10.08 - $22.36
    $10.08 - $22.36
    $10.08
  • $10.25 - $18.73
    $10.25 - $18.73
    $10.25 - $18.73
    $10.25

    3/8"-16 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts LNSS-158

    Monster Fastener
    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
    $10.25 - $18.73
    $10.25 - $18.73
    $10.25 - $18.73
    $10.25
  • 1/2"-13 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $9.73 - $11.95
    $9.73 - $11.95
    $9.73 - $11.95
    $9.73

    1/2"-13 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts LNSS-173

    Monster Fastener
    10+ in stock

    Diameter: 1/2"Diameter 2: 7/8"Thickness: 19/32"Material: Stainless SteelDriver Type: 3/4" WrenchThread Size: 13 (Coarse)Hardness: 18-8Style: Waxed ...

    View full details
    $9.73 - $11.95
    $9.73 - $11.95
    $9.73 - $11.95
    $9.73
  • 5/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
    $13.31 - $13.31
    $13.31
    $13.31 - $13.31
    $13.31

    5/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Style:...

    View full details
    $13.31 - $13.31
    $13.31
    $13.31 - $13.31
    $13.31
  • 3/8"-16 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
    $11.26 - $12.61
    $11.26 - $12.61
    $11.26 - $12.61
    $11.26

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

    Monster Fastener
    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
    $11.26 - $12.61
    $11.26 - $12.61
    $11.26 - $12.61
    $11.26
  • #10-24 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $12.46 - $12.46
    $12.46
    $12.46 - $12.46
    $12.46

    #10-24 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: #10Diameter 2: 7/16"Thickness: 1/4"Material: Stainless SteelDriver Type: 3/8" WrenchThread Size: 24 (Coarse)Hardness: 18-8Style: Waxed Ny...

    View full details
    $12.46 - $12.46
    $12.46
    $12.46 - $12.46
    $12.46
  • 5/16"-18 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $11.26 - $12.40
    $11.26 - $12.40
    $11.26 - $12.40
    $11.26

    5/16"-18 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 11/32"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: 18-8Style: Waxe...

    View full details
    $11.26 - $12.40
    $11.26 - $12.40
    $11.26 - $12.40
    $11.26
  • 3/8"-16 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
    $11.26 - $14.56
    $11.26 - $14.56
    $11.26 - $14.56
    $11.26

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

    Monster Fastener
    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
    $11.26 - $14.56
    $11.26 - $14.56
    $11.26 - $14.56
    $11.26
  • #8-32 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts
    $16.87 - $16.87
    $16.87
    $16.87 - $16.87
    $16.87

    #8-32 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: #8Diameter 2: 3/8"Thickness: 3/16"Material: SteelFinish: ChromeDriver Type: 11/32" WrenchThread Size: 32 (Coarse)Style: Thin PatternType:...

    View full details
    $16.87 - $16.87
    $16.87
    $16.87 - $16.87
    $16.87
  • #10-24 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts
    $16.87 - $16.87
    $16.87
    $16.87 - $16.87
    $16.87

    #10-24 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: #10Diameter 2: 13/32"Thickness: 3/16"Material: SteelFinish: ChromeDriver Type: 3/8" WrenchThread Size: 24 (Coarse)Style: Thin PatternType...

    View full details
    $16.87 - $16.87
    $16.87
    $16.87 - $16.87
    $16.87
  • 1/4"-20 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts
    $17.50 - $17.50
    $17.50
    $17.50 - $17.50
    $17.50

    1/4"-20 Chrome Plated Steel Coarse 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: 20 (Coarse)Style: Thin PatternType...

    View full details
    $17.50 - $17.50
    $17.50
    $17.50 - $17.50
    $17.50
  • 5/16"-18 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts
    $18.12 - $18.12
    $18.12
    $18.12 - $18.12
    $18.12

    5/16"-18 Chrome Plated Steel Coarse 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: 18 (Coarse)Style: Thin PatternTyp...

    View full details
    $18.12 - $18.12
    $18.12
    $18.12 - $18.12
    $18.12
  • 3/8"-16 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts
    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95

    3/8"-16 Chrome Plated Steel Coarse 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: 16 (Coarse)Style: Thin PatternType:...

    View full details
    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95
  • 7/16"-14 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts
    $23.58 - $23.58
    $23.58
    $23.58 - $23.58
    $23.58

    7/16"-14 Chrome Plated Steel Coarse 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: 14 (Coarse)Style: Thin PatternTy...

    View full details
    $23.58 - $23.58
    $23.58
    $23.58 - $23.58
    $23.58
  • 1/2"-13 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts
    $31.73 - $31.73
    $31.73
    $31.73 - $31.73
    $31.73

    1/2"-13 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/2"Diameter 2: 27/32"Thickness: 11/32"Material: SteelFinish: ChromeDriver Type: 3/4" WrenchThread Size: 13 (Coarse)Style: Thin PatternTy...

    View full details
    $31.73 - $31.73
    $31.73
    $31.73 - $31.73
    $31.73
  • 5/8"-11 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts
    $34.44 - $34.44
    $34.44
    $34.44 - $34.44
    $34.44

    5/8"-11 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/8"Diameter 2: 1-1/16"Thickness: 13/32"Material: SteelFinish: ChromeDriver Type: 15/16" WrenchThread Size: 11 (Coarse)Style: Thin Patter...

    View full details
    $34.44 - $34.44
    $34.44
    $34.44 - $34.44
    $34.44
  • #10-32 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts
    $16.87 - $16.87
    $16.87
    $16.87 - $16.87
    $16.87

    #10-32 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: #10Diameter 2: 13/32"Thickness: 3/16"Material: SteelFinish: ChromeDriver Type: 3/8" WrenchThread Size: 32 (Fine)Style: Thin PatternType: ...

    View full details
    $16.87 - $16.87
    $16.87
    $16.87 - $16.87
    $16.87