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Lock Nuts
Lock nuts do not readily loosen when placed on bolts. This makes them useful for holding wheels onto axles, or in automotive engines where machine vibration would otherwise loosen the fastener. Lock nuts may also be used as jam nuts, threaded over another nut to keep it in place.
(16 items in Lock Nuts) 
Fastenal Part No. (SKU) 6M2550000A20000
M6-1.0 DIN 980 Grade A2 Stainless Steel Top Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$0.052 / each
Availability Available Inventory Qty
Fastenal Part No. (SKU) 1137164
1-3/4"-12 Grade 2 Zinc Finish NU Steel Heavy Nylon Insert Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$6.12 / each
Availability Available Inventory Qty
Fastenal Part No. (SKU) 1137058
1-1/2"-6 Grade 2 Zinc Finish NU Steel Heavy Nylon Insert Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$3.53 / each
Availability Available Inventory Qty
Fastenal Part No. (SKU) 1137070
2"-4.5 Grade 2 Zinc Finish NU Steel Heavy Nylon Insert Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$9.20 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 0175675
5/16"-24 Grade 18-8 Stainless Steel Reverse Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$0.0734 / each
Availability Available Inventory Qty
Fastenal Part No. (SKU) 1137064
1-3/4"-5 Grade 2 Zinc Finish NU Steel Heavy Nylon Insert Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$6.49 / each
Availability Available Inventory Qty
Fastenal Part No. (SKU) 1137158
1-1/2"-12 Grade 2 Zinc Finish NU Steel Heavy Nylon Insert Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$6.59 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 1137140
3/4"-16 Grade 2 Zinc Finish NU Steel Heavy Nylon Insert Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$2.62 / each
Availability Contact Branch Qty
Fastenal Part No. (SKU) 0175677
7/16"-14 Grade 18-8 Stainless Steel Reverse Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$0.1686 / each
Availability Available Inventory Qty
Fastenal Part No. (SKU) 0185660
M8-1.25 DIN 985 Class 8 Chrome Finish Steel Nylon Insert Lock Nut
Fastenal Approved Vendor
UOM package of 5 Price
Online Price:
$5.10 / package of 5
Unit Price:
$1.02 / each
Availability Available Inventory Qty
Fastenal Part No. (SKU) 37149
1-1/8"-12 Grade 2 Zinc Finish NU Steel Heavy Nylon Insert Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$1.57 / each
Availability Available Inventory Qty
Fastenal Part No. (SKU) 0175674
1/4"-28 Grade 18-8 Stainless Steel Reverse Lock Nut
Fastenal Approved Vendor
UOM each Price
Online Price:
$0.054 / each
Availability Available Inventory Qty