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

Hex Nuts

  • 5/16"-18 Zinc Plated Grade 5 Steel Coarse Thread Hex Nuts
    $9.28 - $11.45
    $9.28 - $11.45
    $9.28 - $11.45
    $9.28

    5/16"-18 Zinc Plated Grade 5 Steel Coarse Thread Hex Nuts HNS5-121

    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
    $9.28 - $11.45
    $9.28 - $11.45
    $9.28 - $11.45
    $9.28
  • 1/4"-20 Zinc Plated Grade 2 Steel Coarse Thread Heavy Hex Nuts
    $8.22 - $39.93
    $8.22 - $39.93
    $8.22 - $39.93
    $8.22

    1/4"-20 Zinc Plated Grade 2 Steel Coarse Thread Heavy Hex Nuts HNS-164

    Monster Fastener
    10+ in stock

    Diameter: 1/4"Diameter 2: 9/16"Thickness: 15/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 20 (Coarse)Hardness: Grade 2Style: ...

    View full details
    $8.22 - $39.93
    $8.22 - $39.93
    $8.22 - $39.93
    $8.22
  • 5/16"-24 Zinc Plated Grade 8 Steel Fine Thread Hex Nuts
    $10.73 - $11.78
    $10.73 - $11.78
    $10.73 - $11.78
    $10.73

    5/16"-24 Zinc Plated Grade 8 Steel Fine Thread Hex Nuts HXNTS-076

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 17/64"Material: SteelFinish: Yellow ZincDriver Type: 1/2" WrenchThread Size: 24 (Fine)Hardness: Grade 8T...

    View full details
    $10.73 - $11.78
    $10.73 - $11.78
    $10.73 - $11.78
    $10.73
  • 5/16"-24 Zinc Plated Grade 5 Steel Fine Thread Hex Nuts
    $9.34 - $11.64
    $9.34 - $11.64
    $9.34 - $11.64
    $9.34

    5/16"-24 Zinc Plated Grade 5 Steel Fine Thread Hex Nuts HNS5-127

    Monster Fastener
    Only 8 left!

    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
    $9.34 - $11.64
    $9.34 - $11.64
    $9.34 - $11.64
    $9.34
  • 5/16"-18 Polished 18-8 Stainless Steel Grade 5 Coarse Thread Hex Nuts
    $12.00 - $12.00
    $12.00
    $12.00 - $12.00
    $12.00

    5/16"-18 Polished 18-8 Stainless Steel Grade 5 Coarse Thread Hex Nuts (8 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 9/32"Material: Stainless SteelFinish: PolishedDriver Type: 1/2" WrenchThread Size: 18 (Coarse)Hardness: ...

    View full details
    $12.00 - $12.00
    $12.00
    $12.00 - $12.00
    $12.00
  • 5/16"-24 Polished 18-8 Stainless Steel Grade 5 Fine Thread Hex Nuts
    $11.89 - $11.89
    $11.89
    $11.89 - $11.89
    $11.89

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

    Monster Fastener
    10+ in stock

    Diameter: 5/16"Diameter 2: 9/16"Thickness: 9/32"Material: Stainless SteelFinish: PolishedDriver Type: 1/2" WrenchThread Size: 24 (Fine)Hardness: 18...

    View full details
    $11.89 - $11.89
    $11.89
    $11.89 - $11.89
    $11.89
  • 1/4"-20 Zinc Plated Grade 2 Steel Coarse Thread Heavy Hex Nuts
    $10.00 - $10.00
    $10.00
    $10.00 - $10.00
    $10.00

    1/4"-20 Zinc Plated Grade 2 Steel Coarse Thread Heavy Hex Nuts (28 pcs.)

    Monster Fastener
    10+ in stock

    Diameter: 1/4"Diameter 2: 9/16"Thickness: 15/64"Material: SteelFinish: ZincDriver Type: 1/2" WrenchThread Size: 20 (Coarse)Hardness: Grade 2Style: ...

    View full details
    $10.00 - $10.00
    $10.00
    $10.00 - $10.00
    $10.00
  • 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 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"-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 HNSS-107

    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 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 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 HXNTS-073

    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 HNSS-104

    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