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

Hex Nuts

  • 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...

    View full details
    $12.43 - $12.43
    $12.43
    $12.43 - $12.43
    $12.43
  • 5/16"-18 Zinc Plated Steel Coarse Thread Left Hand Hex Nuts
    $12.32 - $12.32
    $12.32
    $12.32 - $12.32
    $12.32

    5/16"-18 Zinc Plated Steel Coarse Thread Left Hand Hex Nuts (12 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 17/64"Material: SteelFinish: Yellow ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Style: Left Hand ThreadType: Hex ...

    View full details
    $12.32 - $12.32
    $12.32
    $12.32 - $12.32
    $12.32
  • 5/16"-24 Zinc Plated Steel Fine Thread Castle Hex Nuts
    $22.37 - $22.37
    $22.37
    $22.37 - $22.37
    $22.37

    5/16"-24 Zinc Plated Steel Fine Thread Castle Hex Nuts (16 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 21/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 24 (Fine)Type: Castle NutUnslotted Thickness and He...

    View full details
    $22.37 - $22.37
    $22.37
    $22.37 - $22.37
    $22.37
  • 5/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Heavy Hex Nuts
    $10.71 - $10.71
    $10.71
    $10.71 - $10.71
    $10.71

    5/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Heavy Hex Nuts (24 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 5/8"Thickness: 19/64"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Style:...

    View full details
    $10.71 - $10.71
    $10.71
    $10.71 - $10.71
    $10.71
  • 5/16"-18 Zinc Plated Steel Coarse Thread Square Nuts
    $11.69 - $11.69
    $11.69
    $11.69 - $11.69
    $11.69

    5/16"-18 Zinc Plated Steel Coarse Thread Square Nuts (24 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 17/64"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 18 (Coarse)Type: Square NutBox of 24.A square nut ...

    View full details
    $11.69 - $11.69
    $11.69
    $11.69 - $11.69
    $11.69
  • 5/16"-24 18-8 Stainless Steel Fine Thread Hex Nuts
    $12.95 - $12.95
    $12.95
    $12.95 - $12.95
    $12.95

    5/16"-24 18-8 Stainless Steel Fine Thread Hex Nuts (16 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 9/32"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 24 (Fine)Hardness: 18-8Type: Hex NutB...

    View full details
    $12.95 - $12.95
    $12.95
    $12.95 - $12.95
    $12.95
  • 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...

    View full details
    $15.39 - $15.39
    $15.39
    $15.39 - $15.39
    $15.39
  • 5/16"-18 Zinc Plated Steel Coarse Thread Slotted Hex Nuts
    $15.10 - $15.10
    $15.10
    $15.10 - $15.10
    $15.10

    5/16"-18 Zinc Plated Steel Coarse Thread Slotted Hex Nuts (16 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 17/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Type: Slotted NutUnslotted Thickness: 3/...

    View full details
    $15.10 - $15.10
    $15.10
    $15.10 - $15.10
    $15.10
  • 5/16"-18 Zinc Plated Grade 5 Steel Coarse Thread Hex Nuts
    $11.22 - $11.22
    $11.22
    $11.22 - $11.22
    $11.22

    5/16"-18 Zinc Plated Grade 5 Steel Coarse Thread Hex Nuts (24 pcs.)

    Monster Fastener
    10+ in stock

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

    View full details
    $11.22 - $11.22
    $11.22
    $11.22 - $11.22
    $11.22
  • 5/16"-24 Zinc Plated Grade 5 Steel Fine Thread Hex Nuts
    $11.35 - $11.35
    $11.35
    $11.35 - $11.35
    $11.35

    5/16"-24 Zinc Plated Grade 5 Steel Fine Thread Hex Nuts (24 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 24 (Fine)Hardness: Grade 5Type: He...

    View full details
    $11.35 - $11.35
    $11.35
    $11.35 - $11.35
    $11.35
  • 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...

    View full details
    $12.79 - $12.79
    $12.79
    $12.79 - $12.79
    $12.79
  • 5/16"-24 Brass Fine Thread Finished Hex Nuts
    $12.79 - $12.79
    $12.79
    $12.79 - $12.79
    $12.79

    5/16"-24 Brass Fine Thread Finished Hex Nuts (12 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 9/32"Material: BrassDriver Type: 1/2" WrenchThread Size: 24 (Fine)Type: Hex NutBox of 12.Hex nuts are used to secure and ...

    View full details
    $12.79 - $12.79
    $12.79
    $12.79 - $12.79
    $12.79
  • 5/16"-24 Yellow Zinc Plated Grade 8 Steel Fine Thread Hex Nuts
    $11.34 - $11.34
    $11.34
    $11.34 - $11.34
    $11.34

    5/16"-24 Yellow Zinc Plated Grade 8 Steel Fine Thread Hex Nuts (10 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 3/8"Material: SteelFinish: Yellow ZincDriver Type: 1/2" WrenchThread Size: 24 (Fine)Style: Non-Serrated...

    View full details
    $11.34 - $11.34
    $11.34
    $11.34 - $11.34
    $11.34
  • 5/16"-18 316 Stainless Steel Coarse Thread Hex Nuts
    $11.88 - $11.88
    $11.88
    $11.88 - $11.88
    $11.88

    5/16"-18 316 Stainless Steel Coarse Thread Hex Nuts (20 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: 316Type: Hex Nu...

    View full details
    $11.88 - $11.88
    $11.88
    $11.88 - $11.88
    $11.88
  • 5/16"-24 18-8 Stainless Steel Fine Thread Hex Nuts
    $12.60 - $16.43
    $12.60 - $16.43
    $12.60 - $16.43
    $12.60

    5/16"-24 18-8 Stainless Steel Fine Thread Hex Nuts

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 9/32"Material: Stainless SteelDriver Type: 1/2" WrenchThread Size: 24 (Fine)Hardness: 18-8Type: Hex NutH...

    View full details
    $12.60 - $16.43
    $12.60 - $16.43
    $12.60 - $16.43
    $12.60
  • 5/16"-18 Zinc Plated Grade 8 Steel Coarse Thread Hex Nuts
    $10.78 - $12.17
    $10.78 - $12.17
    $10.78 - $12.17
    $10.78

    5/16"-18 Zinc Plated Grade 8 Steel Coarse Thread Hex Nuts

    Monster Fastener
    10+ in stock

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

    View full details
    $10.78 - $12.17
    $10.78 - $12.17
    $10.78 - $12.17
    $10.78
  • 5/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Heavy Hex Nuts
    $8.44 - $39.93
    $8.44 - $39.93
    $8.44 - $39.93
    $8.44

    5/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Heavy Hex Nuts

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 5/8"Thickness: 19/64"Material: SteelFinish: ZincDriver Type: 9/16" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Style:...

    View full details
    $8.44 - $39.93
    $8.44 - $39.93
    $8.44 - $39.93
    $8.44
  • 5/16"-18 18-8 Stainless Steel Coarse Thread Hex Nuts
    $11.26 - $15.58
    $11.26 - $15.58
    $11.26 - $15.58
    $11.26

    5/16"-18 18-8 Stainless Steel Coarse Thread Hex Nuts

    Monster Fastener
    10+ in stock

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

    View full details
    $11.26 - $15.58
    $11.26 - $15.58
    $11.26 - $15.58
    $11.26
  • 5/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Finished Hex Nuts
    $9.07 - $11.26
    $9.07 - $11.26
    $9.07 - $11.26
    $9.07

    5/16"-18 Zinc Plated Grade 2 Steel Coarse Thread Finished Hex Nuts

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Thickness: 17/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: Grade 2Type: Hex NutHex nuts a...

    View full details
    $9.07 - $11.26
    $9.07 - $11.26
    $9.07 - $11.26
    $9.07
  • 5/16"-18 Zinc Plated Grade 8 Steel Coarse Thread Hex Nuts
    $10.56 - $29.51
    $10.56 - $29.51
    $10.56 - $29.51
    $10.56

    5/16"-18 Zinc Plated Grade 8 Steel Coarse Thread Hex Nuts

    Monster Fastener
    10+ in stock

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

    View full details
    $10.56 - $29.51
    $10.56 - $29.51
    $10.56 - $29.51
    $10.56
  • 5/16"-18 18-8 Stainless Steel Coarse Thread Hex Nuts
    $9.45 - $11.95
    $9.45 - $11.95
    $9.45 - $11.95
    $9.45

    5/16"-18 18-8 Stainless Steel Coarse Thread Hex Nuts

    Monster Fastener
    10+ in stock

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

    View full details
    $9.45 - $11.95
    $9.45 - $11.95
    $9.45 - $11.95
    $9.45
  • 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: ...

    View full details
    $47.89 - $47.89
    $47.89
    $47.89 - $47.89
    $47.89
  • 5/16"-18 Zinc Plated Grade 8 Steel Blue Rinsed Coarse Thread Hex Nuts
    $29.77 - $29.77
    $29.77
    $29.77 - $29.77
    $29.77

    5/16"-18 Zinc Grade 8 Blue Rinsed Hex Nuts (488 pcs.)

    Monster Fastener
    10+ in stock

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

    View full details
    $29.77 - $29.77
    $29.77
    $29.77 - $29.77
    $29.77
  • 5/16"-24 Green Rinsed Zinc Plated Grade 5 Steel Fine Thread Hex Nuts
    $26.81 - $26.81
    $26.81
    $26.81 - $26.81
    $26.81

    5/16"-24 Green Rinsed Zinc Grade 5 Hex Nuts (495 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: 24 (Fine)Hardness: Gr...

    View full details
    $26.81 - $26.81
    $26.81
    $26.81 - $26.81
    $26.81