Gunsmithing Screws
Wide variety of sizes
Lock Nuts
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Original price $8.52 - Original price $8.52Original price$8.52$8.52 - $8.52Current price $8.525/16"-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 $11.45 - Original price $11.45Original price$11.45$11.45 - $11.45Current price $11.455/16"-18 18-8 Stainless Steel Coarse Thread Keps Lock Nuts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 11/32"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: 18-8Style: KepT...
View full detailsOriginal price $11.45 - Original price $11.45Original price$11.45$11.45 - $11.45Current price $11.45 -
Original price $36.74 - Original price $36.74Original price$36.74$36.74 - $36.74Current price $36.745/16"-18 Black Phosphate Grade 2 Nylon Insert Lock Nuts (452 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: Black PhosphateDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Gr...
View full detailsOriginal price $36.74 - Original price $36.74Original price$36.74$36.74 - $36.74Current price $36.74 -
Original price $10.56 - Original price $18.12Original price$10.56 - $18.12$10.56 - $18.12Current price $10.565/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Kep Lock Nuts
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Style:...
View full detailsOriginal price $10.56 - Original price $18.12Original price$10.56 - $18.12$10.56 - $18.12Current price $10.56 -
Original price $15.45 - Original price $16.20Original price$15.45 - $16.20$15.45 - $16.20Current price $15.455/16"-18 Zinc Plated Grade 8 Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: Yellow ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade ...
View full detailsOriginal price $15.45 - Original price $16.20Original price$15.45 - $16.20$15.45 - $16.20Current price $15.45 -
Original price $9.81 - Original price $14.17Original price$9.81 - $14.17$9.81 - $14.17Current price $9.815/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Lock Nuts
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Style:...
View full detailsOriginal price $9.81 - Original price $14.17Original price$9.81 - $14.17$9.81 - $14.17Current price $9.81 -
Original price $10.08 - Original price $22.36Original price$10.08 - $22.36$10.08 - $22.36Current price $10.085/16"-18 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 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 detailsOriginal price $10.08 - Original price $22.36Original price$10.08 - $22.36$10.08 - $22.36Current price $10.08 -
Original price $13.31 - Original price $13.31Original price$13.31$13.31 - $13.31Current price $13.315/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Style:...
View full detailsOriginal price $13.31 - Original price $13.31Original price$13.31$13.31 - $13.31Current price $13.31 -
Original price $11.26 - Original price $12.40Original price$11.26 - $12.40$11.26 - $12.40Current price $11.265/16"-18 18-8 Stainless Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 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 detailsOriginal price $11.26 - Original price $12.40Original price$11.26 - $12.40$11.26 - $12.40Current price $11.26 -
Original price $18.12 - Original price $18.12Original price$18.12$18.12 - $18.12Current price $18.125/16"-18 Chrome Plated Steel Coarse Thread Thin Pattern Lock Nuts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 1/4"Material: SteelFinish: ChromeDriver Type: 9/16" WrenchThread Size: 18 (Coarse)Style: Thin PatternTyp...
View full detailsOriginal price $18.12 - Original price $18.12Original price$18.12$18.12 - $18.12Current price $18.12 -
Original price $10.65 - Original price $10.65Original price$10.65$10.65 - $10.65Current price $10.655/16"-18 Zinc Plated Grade 5 Steel Coarse Thread Flange Lock Nuts (15 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 11/16"Thickness: 3/8"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 5Style: ...
View full detailsOriginal price $10.65 - Original price $10.65Original price$10.65$10.65 - $10.65Current price $10.65 -
Original price $12.82 - Original price $12.82Original price$12.82$12.82 - $12.82Current price $12.825/16"-18 Polished 18-8 Stainless Nylon Insert Lock Nuts (6 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 11/32"Material: Stainless SteelFinish: PolishedDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness:...
View full detailsOriginal price $12.82 - Original price $12.82Original price$12.82$12.82 - $12.82Current price $12.82 -
Original price $9.91 - Original price $9.91Original price$9.91$9.91 - $9.91Current price $9.915/16"-18 18-8 Stainless Steel Coarse Thread Thin Pattern Lock Nuts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 1/4"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: 18-8Style: Thin P...
View full detailsOriginal price $9.91 - Original price $9.91Original price$9.91$9.91 - $9.91Current price $9.91 -
Original price $8.74 - Original price $8.74Original price$8.74$8.74 - $8.74Current price $8.745/16"-18 18-8 Stainless Steel Coarse Thread Serrated Lock Nuts (8 pcs.)
Monster Fastener10+ in stockDiameter: 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 detailsOriginal price $8.74 - Original price $8.74Original price$8.74$8.74 - $8.74Current price $8.74 -
Original price $12.82 - Original price $12.82Original price$12.82$12.82 - $12.82Current price $12.825/16"-18 Black Chrome Nylon Insert Lock Nuts (6 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 11/32"Material: SteelFinish: Black ChromeDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Style: Nylon In...
View full detailsOriginal price $12.82 - Original price $12.82Original price$12.82$12.82 - $12.82Current price $12.82 -
Original price $12.63 - Original price $12.63Original price$12.63$12.63 - $12.63Current price $12.635/16"-18 18-8 Stainless Steel Coarse Thread Type C Lock Nuts (12 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 9/32"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: 18-8Style: Type ...
View full detailsOriginal price $12.63 - Original price $12.63Original price$12.63$12.63 - $12.63Current price $12.63 -
Original price $11.84 - Original price $11.84Original price$11.84$11.84 - $11.84Current price $11.845/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Lock Nuts (20 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 9/32"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Style: ...
View full detailsOriginal price $11.84 - Original price $11.84Original price$11.84$11.84 - $11.84Current price $11.84 -
Original price $15.42 - Original price $15.42Original price$15.42$15.42 - $15.42Current price $15.425/16"-18 Chrome Nylon Insert Lock Nuts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: ChromeDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Style: Nylon InsertTy...
View full detailsOriginal price $15.42 - Original price $15.42Original price$15.42$15.42 - $15.42Current price $15.42 -
Original price $12.42 - Original price $12.42Original price$12.42$12.42 - $12.42Current price $12.425/16"-18 Zinc Grade 8 Nylon Insert Lock Nuts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: Yellow ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade ...
View full detailsOriginal price $12.42 - Original price $12.42Original price$12.42$12.42 - $12.42Current price $12.42 -
Original price $10.86 - Original price $10.86Original price$10.86$10.86 - $10.86Current price $10.865/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Kep Lock Nuts (16 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Style:...
View full detailsOriginal price $10.86 - Original price $10.86Original price$10.86$10.86 - $10.86Current price $10.86 -
Original price $17.39 - Original price $17.39Original price$17.39$17.39 - $17.39Current price $17.395/16"-18 Chrome Plated Steel Coarse Thread Nylon Insert Lock Nuts (10 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: ChromeDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Style: Nylon InsertTy...
View full detailsOriginal price $17.39 - Original price $17.39Original price$17.39$17.39 - $17.39Current price $17.39 -
Original price $11.40 - Original price $11.40Original price$11.40$11.40 - $11.40Current price $11.405/16"-18 316 Stainless Steel Coarse Thread Lock Nuts (15 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: 316Type: Lock NutBox of 15.A loc...
View full detailsOriginal price $11.40 - Original price $11.40Original price$11.40$11.40 - $11.40Current price $11.40 -
Original price $9.81 - Original price $12.19Original price$9.81 - $12.19$9.81 - $12.19Current price $9.815/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Style:...
View full detailsOriginal price $9.81 - Original price $12.19Original price$9.81 - $12.19$9.81 - $12.19Current price $9.81 -
Original price $40.18 - Original price $40.18Original price$40.18$40.18 - $40.18Current price $40.185/16"-18 Black Phosphate Grade 2 Lock Nuts (509 pcs.)
Monster Fastener10+ in stockDiameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: SteelFinish: Black PhosphateDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Gr...
View full detailsOriginal price $40.18 - Original price $40.18Original price$40.18$40.18 - $40.18Current price $40.18
