Skip to content
FREE Shipping on orders $25+
FREE Shipping on orders $25+

Grade 5 Flange Nuts

Grade 5 flange nuts are medium-strength fasteners designed for applications requiring enhanced durability and reliability. Their integrated flange provides even load distribution and prevents loosening, making them ideal for secure connections in automotive and industrial assemblies.

Filters

$
$
$0.18 - $273.00
$0.18 - $273.00
$0.18 - $273.00
$0.18

1/4"-20 Grade 5 Nylon Insert Hex Flange Lock Nuts Zinc

in stock

Part Number: 25CNFNFZDiameter/Pitch: 1/4"-20Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 7/16"

$0.18 - $273.00
$0.18 - $273.00
$0.18 - $273.00
$0.18
$0.16 - $254.44
$0.16 - $254.44
$0.16 - $254.44
$0.16

1/4"-20 Grade 5 Hex Flange Nuts Zinc Clear

in stock

Part Number: 25CNHF5Z/FSDiameter/Pitch: 1/4"-20Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 7/16"

$0.16 - $254.44
$0.16 - $254.44
$0.16 - $254.44
$0.16
$0.14 - $231.94
$0.14 - $231.94
$0.14 - $231.94
$0.14

1/4"-20 Grade 5 Serrated Hex Flange Lock Nuts Zinc

in stock

Part Number: 25CSLN5ZDiameter/Pitch: 1/4"-20Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 7/16"

$0.14 - $231.94
$0.14 - $231.94
$0.14 - $231.94
$0.14
$0.24 - $244.32
$0.24 - $244.32
$0.24 - $244.32
$0.24

5/16"-18 Grade 5 Nylon Insert Hex Flange Lock Nuts Zinc

in stock

Part Number: 31CNFNFZDiameter/Pitch: 5/16"-18Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 1/2"

$0.24 - $244.32
$0.24 - $244.32
$0.24 - $244.32
$0.24
$0.22 - $232.61
$0.22 - $232.61
$0.22 - $232.61
$0.22

5/16"-18 Grade 5 Hex Flange Nuts Zinc Clear

in stock

Part Number: 31CNHF5Z/FSDiameter/Pitch: 5/16"-18Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 1/2"

$0.22 - $232.61
$0.22 - $232.61
$0.22 - $232.61
$0.22
$0.20 - $239.46
$0.20 - $239.46
$0.20 - $239.46
$0.20

5/16"-18 Grade 5 Serrated Hex Flange Lock Nuts Zinc

in stock

Part Number: 31CSLN5ZDiameter/Pitch: 5/16"-18Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 1/2"

$0.20 - $239.46
$0.20 - $239.46
$0.20 - $239.46
$0.20
$0.35 - $251.38
$0.35 - $251.38
$0.35 - $251.38
$0.35

3/8"-16 Grade 5 Nylon Insert Hex Flange Lock Nuts Zinc

in stock

Part Number: 37CNFNFZDiameter/Pitch: 3/8"-16Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 9/16"

$0.35 - $251.38
$0.35 - $251.38
$0.35 - $251.38
$0.35
$0.32 - $256.55
$0.32 - $256.55
$0.32 - $256.55
$0.32

3/8"-16 Grade 5 Hex Flange Nuts Zinc Clear

in stock

Part Number: 37CNHF5Z/FSDiameter/Pitch: 3/8"-16Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 9/16"

$0.32 - $256.55
$0.32 - $256.55
$0.32 - $256.55
$0.32
$0.29 - $233.14
$0.29 - $233.14
$0.29 - $233.14
$0.29

3/8"-16 Grade 5 Serrated Hex Flange Lock Nuts Zinc

in stock

Part Number: 37CSLN5ZDiameter/Pitch: 3/8"-16Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 9/16"

$0.29 - $233.14
$0.29 - $233.14
$0.29 - $233.14
$0.29
$0.81 - $215.80
$0.81 - $215.80
$0.81 - $215.80
$0.81

1/2"-13 Grade 5 Nylon Insert Hex Flange Lock Nuts Zinc

in stock

Part Number: 50cnfnfzDiameter/Pitch: 1/2"-13Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 3/4"

$0.81 - $215.80
$0.81 - $215.80
$0.81 - $215.80
$0.81
$0.76 - $246.42
$0.76 - $246.42
$0.76 - $246.42
$0.76

1/2"-13 Grade 5 Hex Flange Nuts Zinc Clear

in stock

Part Number: 50CNHF5Z/FSDiameter/Pitch: 1/2"-13Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 3/4"

$0.76 - $246.42
$0.76 - $246.42
$0.76 - $246.42
$0.76
$0.69 - $236.23
$0.69 - $236.23
$0.69 - $236.23
$0.69

1/2"-13 Grade 5 Serrated Hex Flange Lock Nuts Zinc

in stock

Part Number: 50CSLN5ZDiameter/Pitch: 1/2"-13Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 3/4"

$0.69 - $236.23
$0.69 - $236.23
$0.69 - $236.23
$0.69
$1.62 - $247.27
$1.62 - $247.27
$1.62 - $247.27
$1.62

5/8"-11 Grade 5 Nylon Insert Hex Flange Lock Nuts Zinc

in stock

Part Number: 62CNFNFZDiameter/Pitch: 5/8"-11Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 15/16"

$1.62 - $247.27
$1.62 - $247.27
$1.62 - $247.27
$1.62
$1.61 - $262.11
$1.61 - $262.11
$1.61 - $262.11
$1.61

5/8"-11 Grade 5 Hex Flange Nuts Zinc Clear

in stock

Part Number: 62CNHF5Z/FSDiameter/Pitch: 5/8"-11Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: CoarseWrench Size: 15/16"

$1.61 - $262.11
$1.61 - $262.11
$1.61 - $262.11
$1.61
$0.15 - $251.95
$0.15 - $251.95
$0.15 - $251.95
$0.15

1/4"-28 Grade 5 Serrated Hex Flange Lock Nuts Zinc

in stock

Part Number: 25FSLN5ZDiameter/Pitch: 1/4"-28Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: FineWrench Size: 7/16"

$0.15 - $251.95
$0.15 - $251.95
$0.15 - $251.95
$0.15
$0.20 - $247.52
$0.20 - $247.52
$0.20 - $247.52
$0.20

5/16"-24 Grade 5 Serrated Hex Flange Lock Nuts Zinc

in stock

Part Number: 31FSLN5ZDiameter/Pitch: 5/16"-24Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: FineWrench Size: 1/2"

$0.20 - $247.52
$0.20 - $247.52
$0.20 - $247.52
$0.20
$0.30 - $240.94
$0.30 - $240.94
$0.30 - $240.94
$0.30

3/8"-24 Grade 5 Serrated Hex Flange Lock Nuts Zinc

in stock

Part Number: 37FSLN5ZDiameter/Pitch: 3/8"-24Grade: Grade 5Finish: Zinc ClearCoarse / Fine Threads: FineWrench Size: 9/16"

$0.30 - $240.94
$0.30 - $240.94
$0.30 - $240.94
$0.30

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare