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  3. K - Lock Nuts
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K - Lock Nuts

K Lock Nuts are used prevent parts from unthreading.

Conical washer style K lock nuts have a free spinning washer used for maintaining high tension in the screw and nut assembly as the nut is tightened against the bearing surface.

External tooth styles are more popular, saving time and money through ease of installation. Locking action is achieved when the nut is tightened against a bearing surface as the teeth of the lock washer dig into it. These nuts do not gall the screw threads.

Select Conical or Regular / Small External Tooth

Conical Washer
Regular Pattern
Regular Pattern
Small Pattern
Small Pattern
Displaying 1 - 25 of 86 Results
M3-0.5 Metric Class 8 K Lock Nut Zinc
Product SKU:
Box Count:
Price Per Box:
M3NK
5,000
$162.69
-+
M4-0.7 Metric Class 8 K Lock Nut Zinc
Product SKU:
Box Count:
Price Per Box:
M4NK
5,000
$234.24
-+
M5-0.8 Metric Class 8 K Lock Nut Zinc
Product SKU:
Box Count:
Price Per Box:
M5NK
3,000
$207.40
-+
M6-1.0 Metric Class 8 K Lock Nut Zinc
Product SKU:
Box Count:
Price Per Box:
M6NK
2,000
$235.35
-+
M8-1.25 Metric Class 8 K Lock Nut Zinc
Product SKU:
Box Count:
Price Per Box:
M8NK
1,500
$229.51
-+
M3-0.5 Metric K Lock Nut A2 Stainless Steel
Product SKU:
Box Count:
Price Per Box:
M3NKA2
3,000
$313.36
-+
M4-0.7 Metric K Lock Nut A2 Stainless Steel
Product SKU:
Box Count:
Price Per Box:
M4NKA2
2,500
$148.24
-+
M5-0.8 Metric K Lock Nut A2 Stainless Steel
Product SKU:
Box Count:
Price Per Box:
M5NKA2
2,000
$246.45
-+
M6-1.0 Metric K Lock Nut A2 Stainless Steel
Product SKU:
Box Count:
Price Per Box:
M6NKA2
1,000
$180.43
-+
M10-1.5 Metric Class 8 K Lock Nut Zinc
Product SKU:
Box Count:
Price Per Box:
M10NK
1,500
$515.40
-+
4-40 K Lock Nut Zinc and Bake
Product SKU:
Box Count:
Price Per Box:
04NK
5,000
$147.92
-+
4-40 K Lock Nut 18-8 Stainless Steel Nut, 420 Stainless Steel Washer
Product SKU:
Box Count:
Price Per Box:
04NK188
2,000
$302.00
-+
4-40 K Lock Nut 18 8 Stainless Steel Black Oxide and Oil
Product SKU:
Box Count:
Price Per Box:
04NK188B
2,000
$378.89
-+
4-40 K Lock Hex Nut Black Oxide
Product SKU:
Box Count:
Price Per Box:
04NKB
5,000
$153.29
-+
4-40 K Lock Nut Black Zinc and Bake
Product SKU:
Box Count:
Price Per Box:
04NKBZ
5,000
$200.98
-+
4-40 Conical K Keps Lock Nut Zinc and Bake
Product SKU:
Box Count:
Price Per Box:
04NKC
5,000
$250.52
-+
4-40 K Lock Nut Zinc Yellow and Bake
Product SKU:
Box Count:
Price Per Box:
04NKY
5,000
$200.98
-+
4-40 K Lock Nut Zinc Green and Bake
Product SKU:
Box Count:
Price Per Box:
04NKG
5,000
$200.98
-+
4-40 K Lock Nut Steel Nickel finish
Product SKU:
Box Count:
Price Per Box:
04NKNP
5,000
$234.03
-+
5-40 K Lock Nut Zinc and Bake
Product SKU:
Box Count:
Price Per Box:
05NK
5,000
$190.72
-+
1/2-13 K Lock Nut Zinc and Bake
Product SKU:
Box Count:
Price Per Box:
50NK
1,000
$650.41
-+
5-40 K Lock Hex Nut Black Oxide
Product SKU:
Box Count:
Price Per Box:
05NKB
5,000
$239.26
-+
5-40 K Lock Nut Steel Nickel finish
Product SKU:
Box Count:
Price Per Box:
05NKNP
5,000
$295.48
-+
6-32 K Lock Nut Zinc and Bake
Product SKU:
Box Count:
Price Per Box:
06NK
5,000
$187.93
-+
6-32 K Lock Nut 18-8 Stainless Steel Nut, 420 Stainless Steel Washer
Product SKU:
Box Count:
Price Per Box:
06NK188
2,000
$283.16
-+