Locknuts

1344 products

Locknuts

Locknuts are specialized fasteners designed to resist loosening under vibration, torque, and other dynamic forces. At Skdin, we offer high-quality Locknuts in various designs including nylon insert, all-metal, and prevailing torque types for applications where secure, vibration-resistant fastening is critical. Our locknuts feature innovative designs that create friction or mechanical interference to prevent unintentional loosening, ensuring reliable performance in demanding environments. Available in various materials, sizes, and configurations, our locknuts are ideal for automotive, aerospace, industrial machinery, and other applications where vibration is a concern. Explore our selection to find the perfect locknuts for your vibration-resistant fastening needs.

System of Measurement
Inch Metric
Thread Size
1 1/2"-12 1 1/2"-6 1 1/2"-8 1 1/4"-12 1 1/4"-7 1 1/4"-8 1 1/8"-12 1 1/8"-7 1 3/4"-12 1 3/4"-5 1 3/4"-8 1 3/8"-12 1 3/8"-8 1"-12 1"-14 1"-8 1/2"-13 1/2"-20 1/4"-20 1/4"-28 10-24 10-32 12-24 12-28 2 1/2"-12 2 1/4"-12 2 1/4"-8 2 3/4"-12 2"-12 2"-4 1/2 2"-8 2-56 3"-12 3-48 3/4"-10 3/4"-16 3/8"-16 3/8"-24 4-40 5-40 5/16"-18 5/16"-24 5/8"-11 5/8"-18 6-32 6-40 7/16"-14 7/16"-20 7/8"-14 7/8"-9 8-32 8-36 9/16"-12 9/16"-18 M10 M12 M14 M16 M18 M2 M2.5 M20 M22 M24 M27 M3 M30 M33 M36 M39 M4 M42 M45 M48 M5 M56 M6 M7 M8
Material
18-8 Stainless Steel 316 Stainless Steel 6061 Aluminum Black Corrosion-Resistant-Coated Steel Black Zinc Plated Steel Black-Oxide 18-8 Stainless Steel Black-Oxide Steel Black-Phosphate Steel Brass Cadmium Yellow-Chromate Plated Steel Cadmium-Plated Steel Grade 5 Titanium Silver-Plated 18-8 Stainless Steel Steel Zinc Yellow-Chromate Plated Steel Zinc-Flake-Coated Steel Zinc-Plated Steel
Nut Type
Locknut, Hex Locknut; Hex
Width
1/4" 5/16" 11/32" 3/8" 7/16" 1/2" 9/16" 5/8" 11/16" 3/4" 13/16" 7/8" 15/16" 1" 1 1/16" 1 1/8" 1 1/4" 1 5/16" 1 7/16" 1 1/2" 1 5/8" 1 11/16" 1 13/16" 1 7/8" 1 15/16" 2" 2 1/64" 2 3/16" 2 13/64" 2 1/4" 2 3/8" 2 25/64" 2 5/8" 2 3/4" 2 49/64" 3" 3 1/8" 3 9/64" 3 1/2" 3 33/64" 4" 4 1/2" 4 mm 5 mm 5.5 mm 7 mm 8 mm 10 mm 11 mm 12 mm 13 mm 14 mm 17 mm 19 mm 22 mm 24 mm 27 mm 30 mm 32 mm 33 mm 36 mm 41 mm 46 mm 50 mm 55 mm 60 mm 65 mm 70 mm 75 mm 85 mm
Height
3/32" 7/64" 1/8" 9/64" 5/32" 11/64" 3/16" 7/32" 15/64" 1/4" 17/64" 9/32" 19/64" 5/16" 21/64" 11/32" 23/64" 3/8" 25/64" 13/32" 27/64" 7/16" 29/64" 15/32" 31/64" 1/2" 33/64" 17/32" 35/64" 9/16" 37/64" 19/32" 39/64" 5/8" 41/64" 21/32" 11/16" 45/64" 23/32" 47/64" 3/4" 49/64" 25/32" 13/16" 27/32" 55/64" 7/8" 57/64" 29/32" 59/64" 15/16" 63/64" 1" 1 1/64" 1 1/32" 1 3/64" 1 1/16" 1 3/32" 1 7/64" 1 1/8" 1 9/64" 1 11/64" 1 3/16" 1 13/64" 1 1/4" 1 17/64" 1 9/32" 1 5/16" 1 25/64" 1 13/32" 1 15/32" 1 1/2" 1 39/64" 1 41/64" 1 43/64" 1 11/16" 1 23/32" 1 51/64" 1 59/64" 1 15/16" 2 1/32" 2 3/16" 2 5/16" 2 13/32" 2 41/64" 2 13/16" 2.8 mm 3 mm 3.2 mm 3.3 mm 3.5 mm 3.7 mm 3.8 mm 4 mm 4.1 mm 4.2 mm 4.5 mm 4.6 mm 4.8 mm 5 mm 5.1 mm 5.2 mm 5.3 mm 5.5 mm 6 mm 6.2 mm 6.3 mm 6.4 mm 6.5 mm 6.6 mm 7.2 mm 7.3 mm 7.5 mm 7.8 mm 8 mm 8.5 mm 8.8 mm 9.2 mm 9.5 mm 9.7 mm 10 mm 10.4 mm 10.7 mm 11 mm 11.5 mm 11.7 mm 12 mm 13 mm 13.8 mm 14 mm 14.6 mm 15 mm 15.6 mm 16 mm 18 mm 18.2 mm 18.5 mm 19 mm 20 mm 20.8 mm 21 mm 21.5 mm 22 mm 23.4 mm 24 mm 24.4 mm 25 mm 26 mm 27 mm 28 mm 28.6 mm 30 mm 31.2 mm 33 mm 36 mm 38 mm 39 mm 42 mm 45 mm 46 mm 48 mm 50 mm 57 mm
Thread Type
Metric UN UNC UNEF UNF UNS
Thread Direction
Left Hand Right Hand
Thread Pitch
0.4 mm 0.45 mm 0.5 mm 0.7 mm 0.8 mm 1 mm 1.25 mm 1.5 mm 1.75 mm 2 mm 2.5 mm 3 mm 3.5 mm 4 mm 4.5 mm 5 mm 5.5 mm
Washer Type
External-Tooth Lock Spring Lock
Washer OD
0.281" 0.328" 0.344" 0.375" 0.406" 0.5" 0.578" 0.592" 0.656" 0.871" 0.891" 6.5 mm 7.1 mm 8 mm 8.2 mm 8.5 mm 9.5 mm 10 mm 11.5 mm 12 mm 14 mm 15.1 mm 15.5 mm 18 mm 19.2 mm 20.1 mm 22 mm 25.5 mm
Washer Material
18-8 Stainless Steel 400 Stainless Steel Black-Oxide 400 Stainless Steel Steel
Strength Class
ASTM Grade C Class 10 Class 6 Class 8 Grade 2 Grade 5 Grade 8 Grade 9
Show more▼
Part Number Thread Size Thread Type Thread Fit Thread Direction Width Drive Style Material Height Locking Type Nut Type
1147FA00028 M20 Metric Class 6H Right Hand 30 mm External Hex 18-8 Stainless Steel 20 mm Nylon Insert Locknut, Hex
1147FA00012 M20 Metric Class 6H Right Hand 30 mm External Hex 18-8 Stainless Steel 22 mm Nylon Insert Locknut, Hex
1184FA00011 M20 Metric Class 6H Right Hand 30 mm External Hex 18-8 Stainless Steel 26 mm Flex-Top Locknut, Hex
1150FA00022 M20 Metric Class 6H Right Hand 30 mm External Hex 316 Stainless Steel 20 mm Nylon Insert Locknut; Hex
1150FA00010 M20 Metric Class 6H Right Hand 30 mm External Hex 316 Stainless Steel 22 mm Nylon Insert Locknut; Hex
1184FA00021 M20 Metric Class 6H Right Hand 30 mm External Hex 316 Stainless Steel 26 mm Flex-Top Locknut, Hex
1167FA00112 M20 Metric Class 6H Right Hand 30 mm External Hex Black-Phosphate Steel 20 mm Distorted Thread Locknut; Hex
1192FA00008 M20 Metric Class 6H Right Hand 30 mm External Hex Steel 22 mm Cotter Pin Locknut, Hex
1167FA00085 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc Yellow-Chromate Plated Steel 20 mm Distorted Thread Locknut; Hex
1142FA00032 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc Yellow-Chromate Plated Steel 20 mm Nylon Insert Locknut, Hex
1168FA00011 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Distorted Thread Locknut, Hex
1168FA00022 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Distorted Thread Locknut, Hex
1167FA00073 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Distorted Thread Locknut; Hex
1167FA00093 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Distorted Thread Locknut; Hex
1142FA00011 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Nylon Insert Locknut, Hex
1143FA00010 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Nylon Insert Locknut, Hex
1143FA00011 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Nylon Insert Locknut, Hex
1140FA00007 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Nylon Insert Locknut, Hex
1140FA00008 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Nylon Insert Locknut, Hex
1139FA00017 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 20 mm Nylon Insert Locknut, Hex
1192FA00028 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 22 mm Cotter Pin Locknut, Hex
1144FA00018 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 22 mm Nylon Insert Locknut, Hex
1142FA00059 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 22 mm Nylon Insert Locknut, Hex
1139FA00033 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 22 mm Nylon Insert Locknut, Hex
1143FA00026 M20 Metric Class 6H Right Hand 30 mm External Hex Zinc-Plated Steel 22 mm Nylon Insert Locknut, Hex
1142FA00041 M20 Metric Class 6H Right Hand 32 mm External Hex Zinc Yellow-Chromate Plated Steel 22 mm Nylon Insert Locknut, Hex
1147FA00032 M22 Metric Class 6H Right Hand 32 mm External Hex 18-8 Stainless Steel 22 mm Nylon Insert Locknut, Hex
1184FA00012 M22 Metric Class 6H Right Hand 32 mm External Hex 18-8 Stainless Steel 28.6 mm Flex-Top Locknut, Hex
1150FA00002 M22 Metric Class 6H Right Hand 32 mm External Hex 316 Stainless Steel 22 mm Nylon Insert Locknut; Hex
1196FA00003 M22 Metric Class 6H Right Hand 32 mm External Hex Steel 20 mm Steel Insert Locknut, Hex
1142FA00033 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc Yellow-Chromate Plated Steel 22 mm Nylon Insert Locknut, Hex
1176FA00016 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc-Plated Steel 18 mm Distorted Thread Locknut, Hex
1167FA00074 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc-Plated Steel 22 mm Distorted Thread Locknut; Hex
1167FA00094 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc-Plated Steel 22 mm Distorted Thread Locknut; Hex
1142FA00016 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc-Plated Steel 22 mm Nylon Insert Locknut, Hex
1143FA00012 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc-Plated Steel 22 mm Nylon Insert Locknut, Hex
1144FA00019 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc-Plated Steel 22 mm Nylon Insert Locknut, Hex
1140FA00009 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc-Plated Steel 22 mm Nylon Insert Locknut, Hex
1139FA00019 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc-Plated Steel 22 mm Nylon Insert Locknut, Hex
1142FA00060 M22 Metric Class 6H Right Hand 32 mm External Hex Zinc-Plated Steel 25 mm Nylon Insert Locknut, Hex
1167FA00113 M22 Metric Class 6H Right Hand 33 mm External Hex Black-Phosphate Steel 22 mm Distorted Thread Locknut; Hex
1167FA00114 M22 Metric Class 6H Right Hand 33 mm External Hex Black-Phosphate Steel 22 mm Distorted Thread Locknut; Hex
1147FA00029 M24 Metric Class 6H Right Hand 36 mm External Hex 18-8 Stainless Steel 24 mm Nylon Insert Locknut, Hex
1184FA00013 M24 Metric Class 6H Right Hand 36 mm External Hex 18-8 Stainless Steel 31.2 mm Flex-Top Locknut, Hex
1150FA00023 M24 Metric Class 6H Right Hand 36 mm External Hex 316 Stainless Steel 24 mm Nylon Insert Locknut; Hex
1150FA00011 M24 Metric Class 6H Right Hand 36 mm External Hex 316 Stainless Steel 28 mm Nylon Insert Locknut; Hex
1196FA00004 M24 Metric Class 6H Right Hand 36 mm External Hex Steel 21.5 mm Steel Insert Locknut, Hex
1192FA00009 M24 Metric Class 6H Right Hand 36 mm External Hex Steel 27 mm Cotter Pin Locknut, Hex
1167FA00086 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc Yellow-Chromate Plated Steel 24 mm Distorted Thread Locknut; Hex
1142FA00034 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc Yellow-Chromate Plated Steel 24 mm Nylon Insert Locknut, Hex
1142FA00042 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc Yellow-Chromate Plated Steel 28 mm Nylon Insert Locknut, Hex
1168FA00012 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Distorted Thread Locknut, Hex
1168FA00023 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Distorted Thread Locknut, Hex
1167FA00075 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Distorted Thread Locknut; Hex
1167FA00095 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Distorted Thread Locknut; Hex
1142FA00012 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Nylon Insert Locknut, Hex
1143FA00013 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Nylon Insert Locknut, Hex
1143FA00014 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Nylon Insert Locknut, Hex
1144FA00020 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Nylon Insert Locknut, Hex
1140FA00010 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Nylon Insert Locknut, Hex
1140FA00011 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Nylon Insert Locknut, Hex
1139FA00018 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 24 mm Nylon Insert Locknut, Hex
1192FA00018 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 27 mm Cotter Pin Locknut, Hex
1192FA00029 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 27 mm Cotter Pin Locknut, Hex
1142FA00061 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 28 mm Nylon Insert Locknut, Hex
1139FA00034 M24 Metric Class 6H Right Hand 36 mm External Hex Zinc-Plated Steel 28 mm Nylon Insert Locknut, Hex
1147FA00030 M27 Metric Class 6H Right Hand 41 mm External Hex 18-8 Stainless Steel 27 mm Nylon Insert Locknut, Hex
1150FA00024 M27 Metric Class 6H Right Hand 41 mm External Hex 316 Stainless Steel 27 mm Nylon Insert Locknut; Hex
1196FA00005 M27 Metric Class 6H Right Hand 41 mm External Hex Steel 24.4 mm Steel Insert Locknut, Hex
1168FA00013 M27 Metric Class 6H Right Hand 41 mm External Hex Zinc-Plated Steel 27 mm Distorted Thread Locknut, Hex
1167FA00076 M27 Metric Class 6H Right Hand 41 mm External Hex Zinc-Plated Steel 27 mm Distorted Thread Locknut; Hex
1142FA00013 M27 Metric Class 6H Right Hand 41 mm External Hex Zinc-Plated Steel 27 mm Nylon Insert Locknut, Hex
1143FA00015 M27 Metric Class 6H Right Hand 41 mm External Hex Zinc-Plated Steel 27 mm Nylon Insert Locknut, Hex
1143FA00016 M27 Metric Class 6H Right Hand 41 mm External Hex Zinc-Plated Steel 27 mm Nylon Insert Locknut, Hex
1144FA00021 M27 Metric Class 6H Right Hand 41 mm External Hex Zinc-Plated Steel 27 mm Nylon Insert Locknut, Hex
1139FA00020 M27 Metric Class 6H Right Hand 41 mm External Hex Zinc-Plated Steel 27 mm Nylon Insert Locknut, Hex
1192FA00003 M27 Metric Class 6H Right Hand 41 mm External Hex Zinc-Plated Steel 30 mm Cotter Pin Locknut, Hex
1164FA00001 M3 Metric Class 6H Right Hand 5.5 mm External Hex 18-8 Stainless Steel 3.3 mm Lock Washer Locknut, Hex
1147FA00001 M3 Metric Class 6H Right Hand 5.5 mm External Hex 18-8 Stainless Steel 4 mm Nylon Insert Locknut, Hex
1184FA00005 M3 Metric Class 6H Right Hand 5.5 mm External Hex 18-8 Stainless Steel 4.5 mm Flex-Top Locknut, Hex
1150FA00012 M3 Metric Class 6H Right Hand 5.5 mm External Hex 316 Stainless Steel 4 mm Nylon Insert Locknut; Hex
1184FA00004 M3 Metric Class 6H Right Hand 5.5 mm External Hex 316 Stainless Steel 4.5 mm Flex-Top Locknut, Hex
1162FA00007 M3 Metric Class 6H Right Hand 5.5 mm External Hex Black Zinc Plated Steel 3 mm Lock Washer Locknut, Hex
1164FA00005 M3 Metric Class 6H Right Hand 5.5 mm External Hex Black-Oxide 18-8 Stainless Steel 3.3 mm Lock Washer Locknut, Hex
1165FA00002 M3 Metric Class 6H Right Hand 5.5 mm External Hex Black-Oxide Steel 3.5 mm Lock Washer Locknut, Hex
1142FA00022 M3 Metric Class 6H Right Hand 5.5 mm External Hex Zinc Yellow-Chromate Plated Steel 4 mm Nylon Insert Locknut, Hex
1162FA00001 M3 Metric Class 6H Right Hand 5.5 mm External Hex Zinc-Plated Steel 3.3 mm Lock Washer Locknut, Hex
1168FA00001 M3 Metric Class 6H Right Hand 5.5 mm External Hex Zinc-Plated Steel 3.7 mm Distorted Thread Locknut, Hex
1165FA00001 M3 Metric Class 6H Right Hand 5.5 mm External Hex Zinc-Plated Steel 3.8 mm Lock Washer Locknut, Hex
1142FA00001 M3 Metric Class 6H Right Hand 5.5 mm External Hex Zinc-Plated Steel 4 mm Nylon Insert Locknut, Hex
1147FA00031 M30 Metric Class 6H Right Hand 46 mm External Hex 18-8 Stainless Steel 30 mm Nylon Insert Locknut, Hex
1150FA00025 M30 Metric Class 6H Right Hand 46 mm External Hex 316 Stainless Steel 30 mm Nylon Insert Locknut; Hex
1196FA00006 M30 Metric Class 6H Right Hand 46 mm External Hex Steel 27 mm Steel Insert Locknut, Hex
1192FA00010 M30 Metric Class 6H Right Hand 46 mm External Hex Steel 33 mm Cotter Pin Locknut, Hex
1168FA00014 M30 Metric Class 6H Right Hand 46 mm External Hex Zinc-Plated Steel 30 mm Distorted Thread Locknut, Hex
1167FA00077 M30 Metric Class 6H Right Hand 46 mm External Hex Zinc-Plated Steel 30 mm Distorted Thread Locknut; Hex
1167FA00096 M30 Metric Class 6H Right Hand 46 mm External Hex Zinc-Plated Steel 30 mm Distorted Thread Locknut; Hex
1142FA00014 M30 Metric Class 6H Right Hand 46 mm External Hex Zinc-Plated Steel 30 mm Nylon Insert Locknut, Hex
1143FA00017 M30 Metric Class 6H Right Hand 46 mm External Hex Zinc-Plated Steel 30 mm Nylon Insert Locknut, Hex
1144FA00022 M30 Metric Class 6H Right Hand 46 mm External Hex Zinc-Plated Steel 30 mm Nylon Insert Locknut, Hex
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