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  • 5/16"-18 Black Oxide Steel Coarse Thread Nylon Insert Lock Nuts
    $8.52 - $8.52
    $8.52
    $8.52 - $8.52
    $8.52

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

    Monster Fastener
    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...

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    $8.52 - $8.52
    $8.52
    $8.52 - $8.52
    $8.52
  • 5/16"-18 Black Phosphate Coarse Thread Extruded Long U Nuts
    $17.87 - $17.87
    $17.87
    $17.87 - $17.87
    $17.87

    5/16"-18 Black Phosphate Coarse Thread Extruded Long U Nuts (16 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Material: PhosphateThread Size: 18 (Coarse)Style: Long UType: Speed NutBox of 16.

    $17.87 - $17.87
    $17.87
    $17.87 - $17.87
    $17.87
  • 5/16"-18 Black Phosphate Coarse Thread Extruded Regular U Nuts
    $14.92 - $14.92
    $14.92
    $14.92 - $14.92
    $14.92

    5/16"-18 Black Phosphate Coarse Thread Extruded Regular U Nuts (16 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Material: PhosphateThread Size: 18 (Coarse)Style: Regular UType: Speed NutBox of 16.

    $14.92 - $14.92
    $14.92
    $14.92 - $14.92
    $14.92
  • 5/16"-18 Black Phosphate Coarse Thread Extruded Long U Nuts
    $12.76 - $12.76
    $12.76
    $12.76 - $12.76
    $12.76

    5/16"-18 Black Phosphate Extruded Long U Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Material: PhosphateThread Size: 18 (Coarse)Style: Long UType: Speed NutBox of 10.

    $12.76 - $12.76
    $12.76
    $12.76 - $12.76
    $12.76
  • 5/16"-18 Black Phosphate Coarse Thread Extruded Regular U Nuts
    $12.04 - $12.04
    $12.04
    $12.04 - $12.04
    $12.04

    5/16"-18 Black Phosphate Extruded Regular U Nuts (12 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Material: PhosphateThread Size: 18 (Coarse)Style: Regular UType: Speed NutBox of 12.

    $12.04 - $12.04
    $12.04
    $12.04 - $12.04
    $12.04
  • 5/16"-18 Black Phosphate Grade 2 Steel Coarse Thread Lock Nuts
    $40.18 - $40.18
    $40.18
    $40.18 - $40.18
    $40.18

    5/16"-18 Black Phosphate Grade 2 Lock Nuts (509 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: SteelFinish: Black PhosphateDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Gr...

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    $40.18 - $40.18
    $40.18
    $40.18 - $40.18
    $40.18
  • 5/16"-18 Black Phosphate Grade 2 Steel Coarse Thread Nylon Insert Lock Nuts
    $36.74 - $36.74
    $36.74
    $36.74 - $36.74
    $36.74

    5/16"-18 Black Phosphate Grade 2 Nylon Insert Lock Nuts (452 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: Black PhosphateDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Gr...

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    $36.74 - $36.74
    $36.74
    $36.74 - $36.74
    $36.74
  • 5/16"-18 Brass Coarse Thread Finished Hex Nuts
    $12.79 - $12.79
    $12.79
    $12.79 - $12.79
    $12.79

    5/16"-18 Brass Coarse Thread Finished Hex Nuts (12 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 9/32"Material: BrassDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Type: Hex NutBox of 12.Hex nuts are used to secure an...

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    $12.79 - $12.79
    $12.79
    $12.79 - $12.79
    $12.79
  • 5/16"-18 Brass Coarse Thread Finished Hex Nuts
    $13.15 - $13.15
    $13.15
    $13.15 - $13.15
    $13.15

    5/16"-18 Brass Coarse Thread Finished Hex Nuts (15 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 9/32"Material: BrassDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Type: Hex NutBox of 15.Hex nuts are used to secure an...

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    $13.15 - $13.15
    $13.15
    $13.15 - $13.15
    $13.15
  • 5/16"-18 Brass Coarse Thread Hex Machine Screw Nuts
    $43.44 - $43.44
    $43.44
    $43.44 - $43.44
    $43.44

    5/16"-18 Brass Coarse Thread Hex Machine Screw Nuts (100 pcs)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 7/32"Material: BrassDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Type: Hex NutBox of 100.Hex nuts are used to secure a...

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    $43.44 - $43.44
    $43.44
    $43.44 - $43.44
    $43.44
  • 5/16"-18 Cast Zinc Coarse Thread Breakaway Nuts
    $25.77 - $25.77
    $25.77
    $25.77 - $25.77
    $25.77

    5/16"-18 Cast Zinc Coarse Thread Breakaway Nuts (8 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Material: ZincDriver Type: 5/8" DriverThread Size: 18 (Coarse)Style: BreakawayType: Security NutBox of 8.

    $25.77 - $25.77
    $25.77
    $25.77 - $25.77
    $25.77
  • 5/16"-18 Chrome Plated Steel Coarse Thread Nylon Insert Lock Nuts
    $15.42 - $15.42
    $15.42
    $15.42 - $15.42
    $15.42

    5/16"-18 Chrome Nylon Insert Lock Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: ChromeDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Style: Nylon InsertTy...

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    $15.42 - $15.42
    $15.42
    $15.42 - $15.42
    $15.42
  • 5/16"-18 Chrome Plated Grade 2 / A307 Steel Coarse Thread Acorn Cap Nuts
    $27.72 - $27.72
    $27.72
    $27.72 - $27.72
    $27.72

    5/16"-18 Chrome Plated Grade 2 / A307 Steel Coarse Thread Acorn Cap Nuts

    Monster Fastener
    10+ in stock

    Box of 15.A closed nut having a dome-like cap over the back, protruding part of the engaged screw or bolt. Also called an acorn nut.

    $27.72 - $27.72
    $27.72
    $27.72 - $27.72
    $27.72
  • 5/16"-18 Chrome Plated Grade 5 Steel Coarse Thread Hex Nuts
    $12.43 - $12.43
    $12.43
    $12.43 - $12.43
    $12.43

    5/16"-18 Chrome Plated Grade 5 Steel Coarse Thread Hex Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 17/64"Material: SteelFinish: ChromeDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 5Type: Hex NutBox of 1...

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    $12.43 - $12.43
    $12.43
    $12.43 - $12.43
    $12.43
  • 5/16"-18 Chrome Plated Grade 5 Steel Coarse Thread Hex Nuts
    $15.39 - $15.39
    $15.39
    $15.39 - $15.39
    $15.39

    5/16"-18 Chrome Plated Grade 5 Steel Coarse Thread Hex Nuts (12 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 17/64"Material: SteelFinish: ChromeDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 5Type: Hex NutBox of 1...

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    $15.39 - $15.39
    $15.39
    $15.39 - $15.39
    $15.39
  • 5/16"-18 Chrome Plated Steel Coarse Thread Flange Nuts
    $10.75 - $10.75
    $10.75
    $10.75 - $10.75
    $10.75

    5/16"-18 Chrome Plated Steel Coarse Thread Flange Nuts (6 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 21/32"Thickness: 9/32"Material: SteelFinish: ChromeDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Type: Flange NutBox o...

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    $10.75 - $10.75
    $10.75
    $10.75 - $10.75
    $10.75
  • 5/16"-18 Chrome Plated Steel Coarse Thread Flat Head Acorn Cap Nuts
    $19.95 - $27.72
    $19.95 - $27.72
    $19.95 - $27.72
    $19.95

    5/16"-18 Chrome Plated Steel Coarse Thread Flat Head Acorn Cap Nuts

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 17/32"Material: SteelFinish: ChromeHead Style: Flat (1/2" Wrench)Thread Size: 18 (Coarse)Shape: Flat Head AcornType: Cap ...

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    $19.95 - $27.72
    $19.95 - $27.72
    $19.95 - $27.72
    $19.95
  • 5/16"-18 Chrome Plated Steel Coarse Thread Nylon Insert Lock Nuts
    $17.39 - $17.39
    $17.39
    $17.39 - $17.39
    $17.39

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

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 23/64"Material: SteelFinish: ChromeDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Style: Nylon InsertTy...

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    $17.39 - $17.39
    $17.39
    $17.39 - $17.39
    $17.39
  • 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...

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    $18.12 - $18.12
    $18.12
    $18.12 - $18.12
    $18.12
  • 5/16"-18 Coarse Thread Carbon STI Plug Tap
    $23.27 - $23.27
    $23.27
    $23.27 - $23.27
    $23.27

    5/16"-18 Coarse Thread Carbon STI Plug Tap (1 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thread Size: 18 (Coarse)Style: CarbonType: Plug TapBox of 1.Plug taps are the most commonly used type of tap. It has tapered cuttin...

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    $23.27 - $23.27
    $23.27
    $23.27 - $23.27
    $23.27
  • 5/16"-18 Green Rinsed Zinc Plated Grade 5 Steel Coarse Thread Hex Nuts
    $47.89 - $47.89
    $47.89
    $47.89 - $47.89
    $47.89

    5/16"-18 Green Rinsed Zinc Grade 5 Hex Nuts (904 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: SteelFinish: Green Rinsed ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: ...

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    $47.89 - $47.89
    $47.89
    $47.89 - $47.89
    $47.89
  • 5/16"-18 Hot Dip Galvanized Steel Coarse Thread Finished Hex Nuts
    $10.14 - $31.28
    $10.14 - $31.28
    $10.14 - $31.28
    $10.14

    5/16"-18 Hot Dip Galvanized Steel Coarse Thread Finished Hex Nuts

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 9/32"Material: SteelFinish: Hot Dip GalvanizedDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Type: Hex NutHex nuts are u...

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    $10.14 - $31.28
    $10.14 - $31.28
    $10.14 - $31.28
    $10.14
  • 5/16"-18 Lead Coarse Thread Machine Screw Anchors
    $46.91 - $46.91
    $46.91
    $46.91 - $46.91
    $46.91

    5/16"-18 Lead Coarse Thread Machine Screw Anchors (50 pcs)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Material: LeadDrill Size: 5/8"Thread Size: 18 (Coarse)Style: Machine ScrewType: Screw AnchorBox of 50.

    $46.91 - $46.91
    $46.91
    $46.91 - $46.91
    $46.91
  • 5/16"-18 Nickel Plated Steel Coarse Thread Acorn Cap Nuts
    $9.32 - $26.11
    $9.32 - $26.11
    $9.32 - $26.11
    $9.32

    5/16"-18 Nickel Plated Steel Coarse Thread Acorn Cap Nuts

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 17/32"Material: SteelFinish: NickelDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Shape: AcornType: Cap NutA closed nut ...

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    $9.32 - $26.11
    $9.32 - $26.11
    $9.32 - $26.11
    $9.32