Wide variety of sizes
Lock Nuts
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Original price $11.91 - Original price $16.24Original price$11.91 - $16.24$11.91 - $16.24Current price $11.91| /
5/8"-18 Zinc Plated Grade 2 Steel Fine Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 5/8"Diameter 2: 1-7/32"Thickness: 49/64"Material: SteelFinish: ZincDriver Type: 15/16" WrenchThread Size: 18 (Fine)Hardness: Grade 2Style...
View full detailsOriginal price $11.91 - Original price $16.24Original price$11.91 - $16.24$11.91 - $16.24Current price $11.91| / -
Original price $10.26 - Original price $17.80Original price$10.26 - $17.80$10.26 - $17.80Current price $10.26| /
1/4"-20 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 1/4"Diameter 2: 1/2"Thickness: 5/16"Material: Stainless SteelDriver Type: 7/16" WrenchThread Size: 20 (Coarse)Hardness: 18-8Style: Waxed ...
View full detailsOriginal price $10.26 - Original price $17.80Original price$10.26 - $17.80$10.26 - $17.80Current price $10.26| / -
Original price $9.66 - Original price $9.66Original price$9.66$9.66 - $9.66Current price $9.66| /
5/8"-11 Zinc Grade 2 Nylon Thin Lock Nuts (5 pcs.)
Monster Fastener10+ in stockDiameter: 5/8"Diameter 2: 1-1/16"Thickness: 13/32"Material: SteelFinish: ZincDriver Type: 15/16" WrenchThread Size: 11 (Coarse)Hardness: Grade 2Sty...
View full detailsOriginal price $9.66 - Original price $9.66Original price$9.66$9.66 - $9.66Current price $9.66| / -
Original price $8.52 - Original price $8.52Original price$8.52$8.52 - $8.52Current price $8.52| /
5/16"-18 Black Oxide Steel Coarse Thread Nylon Insert Lock Nuts (8 pcs.)
Monster Fastener10+ in stockDiameter: 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 detailsOriginal price $8.52 - Original price $8.52Original price$8.52$8.52 - $8.52Current price $8.52| / -
Original price $11.01 - Original price $14.01Original price$11.01 - $14.01$11.01 - $14.01Current price $11.01| /
9/16"-18 Zinc Plated Grade 2 Steel Fine Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 9/16"Diameter 2: 1"Thickness: 21/32"Material: SteelFinish: ZincDriver Type: 7/8" WrenchThread Size: 18 (Fine)Hardness: Grade 2Style: Nylo...
View full detailsOriginal price $11.01 - Original price $14.01Original price$11.01 - $14.01$11.01 - $14.01Current price $11.01| / -
Original price $11.95 - Original price $18.25Original price$11.95 - $18.25$11.95 - $18.25Current price $11.95| /
3/8"-16 Zinc Plated Grade 8 Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 3/8"Diameter 2: 21/32"Thickness: 15/32"Material: SteelFinish: Yellow ZincDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: Grade...
View full detailsOriginal price $11.95 - Original price $18.25Original price$11.95 - $18.25$11.95 - $18.25Current price $11.95| / -
Original price $13.94 - Original price $22.50Original price$13.94 - $22.50$13.94 - $22.50Current price $13.94| /
7/8"-9 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 7/8"Diameter 2: 1-7/16"Thickness: 1"Material: SteelFinish: ZincDriver Type: 1-5/16" WrenchThread Size: 9 (Coarse)Hardness: Grade 2Style: ...
View full detailsOriginal price $13.94 - Original price $22.50Original price$13.94 - $22.50$13.94 - $22.50Current price $13.94| / -
Original price $31.73 - Original price $31.73Original price$31.73$31.73 - $31.73Current price $31.73| /
1/2"-20 Chrome Plated Steel Fine Thread Thin Pattern Lock Nuts (10 pcs.)
Monster Fastener10+ in stockDiameter: 1/2"Diameter 2: 27/32"Thickness: 11/32"Material: SteelFinish: ChromeDriver Type: 3/4" WrenchThread Size: 20 (Fine)Style: Thin PatternType...
View full detailsOriginal price $31.73 - Original price $31.73Original price$31.73$31.73 - $31.73Current price $31.73| / -
Original price $10.66 - Original price $10.66Original price$10.66$10.66 - $10.66Current price $10.66| /
1/4"-20 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts (20 pcs.)
Monster Fastener10+ in stockDiameter: 1/4"Diameter 2: 9/16"Thickness: 9/32"Material: SteelFinish: ZincDriver Type: 7/16" WrenchThread Size: 20 (Coarse)Hardness: Grade 5Style: ...
View full detailsOriginal price $10.66 - Original price $10.66Original price$10.66$10.66 - $10.66Current price $10.66| / -
Original price $12.04 - Original price $12.04Original price$12.04$12.04 - $12.04Current price $12.04| /
7/16"-20 Polished 18-8 Stainless Nylon Insert Lock Nuts (4 pcs.)
Monster Fastener10+ in stockDiameter: 7/16"Diameter 2: 23/32"Thickness: 15/32"Material: Stainless SteelFinish: PolishedDriver Type: 5/8" WrenchThread Size: 20 (Fine)Hardness: ...
View full detailsOriginal price $12.04 - Original price $12.04Original price$12.04$12.04 - $12.04Current price $12.04| / -
Original price $10.38 - Original price $10.38Original price$10.38$10.38 - $10.38Current price $10.38| /
3/8"-24 18-8 Stainless Steel Fine Thread Serrated Lock Nuts (5 pcs.)
Monster Fastener10+ in stockDiameter: 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 detailsOriginal price $10.38 - Original price $10.38Original price$10.38$10.38 - $10.38Current price $10.38| / -
Original price $9.15 - Original price $9.15Original price$9.15$9.15 - $9.15Current price $9.15| /
1/4"-28 Zinc Plated Steel Fine Thread Serrated Lock Nuts (15 pcs.)
Monster Fastener10+ in stockDiameter: 1/4"Diameter 2: 19/32"Thickness: 1/4"Material: SteelFinish: ZincDriver Type: 7/16" WrenchThread Size: 28 (Fine)Style: SerratedType: Flang...
View full detailsOriginal price $9.15 - Original price $9.15Original price$9.15$9.15 - $9.15Current price $9.15| / -
Original price $26.74 - Original price $26.74Original price$26.74$26.74 - $26.74Current price $26.74| /
1-1/8"-7 Zinc Plated Grade 8 Steel Coarse Thread Lock Nuts (5 pcs.)
Monster Fastener10+ in stockDiameter: 1-1/8"Diameter 2: 1-7/8"Thickness: 1-3/16"Material: SteelFinish: Yellow ZincDriver Type: 1-11/16" WrenchThread Size: 7 (Coarse)Hardness: ...
View full detailsOriginal price $26.74 - Original price $26.74Original price$26.74$26.74 - $26.74Current price $26.74| / -
Original price $10.07 - Original price $10.07Original price$10.07$10.07 - $10.07Current price $10.07| /
5/16"-24 Zinc Plated Grade 2 Steel Fine Thread Top Lock Nuts (12 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 24 (Fine)Hardness: Grade 2Style: T...
View full detailsOriginal price $10.07 - Original price $10.07Original price$10.07$10.07 - $10.07Current price $10.07| / -
Original price $9.95 - Original price $9.95Original price$9.95$9.95 - $9.95Current price $9.95| /
1/8IP x 1/2" Brass Lock Nuts (10 pcs.)
Monster Fastener10+ in stockDiameter: 1/8IPDiameter 2: 9/16"Thickness: 1/8"Material: BrassDriver Type: 1/2" WrenchType: Lock NutBox of 10.A lock nut is a nut that resists loos...
View full detailsOriginal price $9.95 - Original price $9.95Original price$9.95$9.95 - $9.95Current price $9.95| / -
Original price $11.64 - Original price $11.64Original price$11.64$11.64 - $11.64Current price $11.64| /
1/2"-20 Zinc Plated Grade 8 Steel Fine Thread Nylon Insert Lock Nuts (5 pcs.)
Monster Fastener10+ in stockDiameter: 1/2"Diameter 2: 27/32"Thickness: 39/64"Material: SteelFinish: Yellow ZincDriver Type: 3/4" WrenchThread Size: 20 (Fine)Hardness: Grade 8S...
View full detailsOriginal price $11.64 - Original price $11.64Original price$11.64$11.64 - $11.64Current price $11.64| / -
Original price $11.31 - Original price $11.31Original price$11.31$11.31 - $11.31Current price $11.31| /
5/8"-11 Zinc Grade 2 Nylon Insert Lock Nuts (6 pcs.)
Monster Fastener10+ in stockDiameter: 5/8"Diameter 2: 1-7/32"Thickness: 49/64"Material: SteelFinish: ZincDriver Type: 15/16" WrenchThread Size: 11 (Coarse)Hardness: Grade 2Sty...
View full detailsOriginal price $11.31 - Original price $11.31Original price$11.31$11.31 - $11.31Current price $11.31| / -
Original price $13.92 - Original price $13.92Original price$13.92$13.92 - $13.92Current price $13.92| /
1/2"-13 Zinc Grade 8 Nylon Insert Lock Nuts (6 pcs.)
Monster Fastener10+ in stockDiameter: 1/2"Diameter 2: 27/32"Thickness: 39/64"Material: SteelFinish: Yellow ZincDriver Type: 3/4" WrenchThread Size: 13 (Coarse)Hardness: Grade ...
View full detailsOriginal price $13.92 - Original price $13.92Original price$13.92$13.92 - $13.92Current price $13.92| / -
Original price $14.27 - Original price $14.27Original price$14.27$14.27 - $14.27Current price $14.27| /
5/8"-11 Zinc Grade 8 Nylon Insert Lock Nuts (5 pcs.)
Monster Fastener10+ in stockDiameter: 5/8"Diameter 2: 1-7/32"Thickness: 49/64"Material: SteelFinish: Yellow ZincDriver Type: 15/16" WrenchThread Size: 11 (Coarse)Hardness: Gra...
View full detailsOriginal price $14.27 - Original price $14.27Original price$14.27$14.27 - $14.27Current price $14.27| / -
Original price $13.17 - Original price $13.17Original price$13.17$13.17 - $13.17Current price $13.17| /
3/8"-16 Zinc Plated Grade 2 Steel Coarse Thread Lock Nuts (16 pcs.)
Monster Fastener10+ in stockDiameter: 3/8"Diameter 2: 21/32"Thickness: 21/64"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 16 (Coarse)Hardness: Grade 2Style...
View full detailsOriginal price $13.17 - Original price $13.17Original price$13.17$13.17 - $13.17Current price $13.17| / -
Original price $11.26 - Original price $32.55Original price$11.26 - $32.55$11.26 - $32.55Current price $11.26| /
1/4"-20 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 1/4"Diameter 2: 1/2"Thickness: 21/64"Material: SteelFinish: ZincDriver Type: 7/16" WrenchThread Size: 20 (Coarse)Hardness: Grade 2Style: ...
View full detailsOriginal price $11.26 - Original price $32.55Original price$11.26 - $32.55$11.26 - $32.55Current price $11.26| / -
Original price $9.39 - Original price $13.36Original price$9.39 - $13.36$9.39 - $13.36Current price $9.39| /
10mm-1.0 Zinc Plated Class 8 Steel Extra Fine Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 10mmDiameter 2: 19mmThickness: 9.9mmMaterial: SteelFinish: ZincDriver Type: #17 WrenchThread Size: 1.0mm (Extra Fine)Hardness: Class 8Sty...
View full detailsOriginal price $9.39 - Original price $13.36Original price$9.39 - $13.36$9.39 - $13.36Current price $9.39| / -
Original price $11.29 - Original price $12.98Original price$11.29 - $12.98$11.29 - $12.98Current price $11.29| /
9/16"-12 Zinc Plated Grade 8 Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 9/16"Diameter 2: 1"Thickness: 21/32"Material: SteelFinish: Yellow ZincDriver Type: 7/8" WrenchThread Size: 12 (Coarse)Hardness: Grade 8St...
View full detailsOriginal price $11.29 - Original price $12.98Original price$11.29 - $12.98$11.29 - $12.98Current price $11.29| / -
Original price $9.73 - Original price $11.95Original price$9.73 - $11.95$9.73 - $11.95Current price $9.73| /
1/2"-13 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 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 detailsOriginal price $9.73 - Original price $11.95Original price$9.73 - $11.95$9.73 - $11.95Current price $9.73| /