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
1143FA00006 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 12 mm Nylon Insert Locknut, Hex
1143FA00007 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 12 mm Nylon Insert Locknut, Hex
1144FA00013 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 12 mm Nylon Insert Locknut, Hex
1140FA00003 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 12 mm Nylon Insert Locknut, Hex
1140FA00015 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 12 mm Nylon Insert Locknut, Hex
1139FA00013 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 12 mm Nylon Insert Locknut, Hex
1165FA00011 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 13.8 mm Lock Washer Locknut, Hex
1142FA00055 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 14 mm Nylon Insert Locknut, Hex
1139FA00029 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 14 mm Nylon Insert Locknut, Hex
1192FA00015 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 15 mm Cotter Pin Locknut, Hex
1192FA00026 M12 Metric Class 6H Right Hand 19 mm External Hex Zinc-Plated Steel 15 mm Cotter Pin Locknut, Hex
1200FA00006 M12 - Class 6H Right Hand 17 mm External Hex Zinc-Plated Steel 10.4 mm Spring-Stop Locknut, Hex
1172FA00014 M14 Metric Class 6H Right Hand 22 mm External Hex 18-8 Stainless Steel 14 mm Distorted Thread Locknut, Hex
1147FA00015 M14 Metric Class 6H Right Hand 22 mm External Hex 18-8 Stainless Steel 14 mm Nylon Insert Locknut, Hex
1147FA00025 M14 Metric Class 6H Right Hand 22 mm External Hex 18-8 Stainless Steel 14 mm Nylon Insert Locknut, Hex
1184FA00008 M14 Metric Class 6H Right Hand 22 mm External Hex 18-8 Stainless Steel 18.2 mm Flex-Top Locknut, Hex
1150FA00019 M14 Metric Class 6H Right Hand 22 mm External Hex 316 Stainless Steel 14 mm Nylon Insert Locknut; Hex
1139FA00007 M14 Metric Class 6H Right Hand 22 mm External Hex Black Corrosion-Resistant-Coated Steel 14 mm Nylon Insert Locknut, Hex
1142FA00049 M14 Metric Class 6H Right Hand 22 mm External Hex Black Corrosion-Resistant-Coated Steel 14 mm Nylon Insert Locknut, Hex
1167FA00108 M14 Metric Class 6H Right Hand 22 mm External Hex Black-Phosphate Steel 14 mm Distorted Thread Locknut; Hex
1167FA00109 M14 Metric Class 6H Right Hand 22 mm External Hex Black-Phosphate Steel 14 mm Distorted Thread Locknut; Hex
1192FA00005 M14 Metric Class 6H Right Hand 22 mm External Hex Steel 16 mm Cotter Pin Locknut, Hex
1192FA00020 M14 Metric Class 6H Right Hand 22 mm External Hex Steel 16 mm Cotter Pin Locknut, Hex
1167FA00082 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc Yellow-Chromate Plated Steel 14 mm Distorted Thread Locknut; Hex
1167FA00119 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc Yellow-Chromate Plated Steel 14 mm Distorted Thread Locknut; Hex
1142FA00029 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc Yellow-Chromate Plated Steel 14 mm Nylon Insert Locknut, Hex
1176FA00012 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 11 mm Distorted Thread Locknut, Hex
1176FA00013 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 11 mm Distorted Thread Locknut, Hex
1168FA00008 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 14 mm Distorted Thread Locknut, Hex
1168FA00018 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 14 mm Distorted Thread Locknut, Hex
1167FA00070 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 14 mm Distorted Thread Locknut; Hex
1167FA00090 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 14 mm Distorted Thread Locknut; Hex
1142FA00008 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 14 mm Nylon Insert Locknut, Hex
1143FA00008 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 14 mm Nylon Insert Locknut, Hex
1144FA00014 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 14 mm Nylon Insert Locknut, Hex
1140FA00004 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 14 mm Nylon Insert Locknut, Hex
1139FA00014 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 14 mm Nylon Insert Locknut, Hex
1192FA00001 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 16 mm Cotter Pin Locknut, Hex
1192FA00016 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 16 mm Cotter Pin Locknut, Hex
1142FA00056 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 16 mm Nylon Insert Locknut, Hex
1139FA00030 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 16 mm Nylon Insert Locknut, Hex
1143FA00024 M14 Metric Class 6H Right Hand 22 mm External Hex Zinc-Plated Steel 16 mm Nylon Insert Locknut, Hex
1172FA00015 M16 Metric Class 6H Right Hand 24 mm External Hex 18-8 Stainless Steel 16 mm Distorted Thread Locknut, Hex
1172FA00016 M16 Metric Class 6H Right Hand 24 mm External Hex 18-8 Stainless Steel 16 mm Distorted Thread Locknut, Hex
1147FA00017 M16 Metric Class 6H Right Hand 24 mm External Hex 18-8 Stainless Steel 16 mm Nylon Insert Locknut, Hex
1147FA00026 M16 Metric Class 6H Right Hand 24 mm External Hex 18-8 Stainless Steel 16 mm Nylon Insert Locknut, Hex
1147FA00011 M16 Metric Class 6H Right Hand 24 mm External Hex 18-8 Stainless Steel 18 mm Nylon Insert Locknut, Hex
1184FA00009 M16 Metric Class 6H Right Hand 24 mm External Hex 18-8 Stainless Steel 20.8 mm Flex-Top Locknut, Hex
1150FA00020 M16 Metric Class 6H Right Hand 24 mm External Hex 316 Stainless Steel 16 mm Nylon Insert Locknut; Hex
1150FA00009 M16 Metric Class 6H Right Hand 24 mm External Hex 316 Stainless Steel 18 mm Nylon Insert Locknut; Hex
1167FA00110 M16 Metric Class 6H Right Hand 24 mm External Hex Black-Phosphate Steel 16 mm Distorted Thread Locknut; Hex
1167FA00111 M16 Metric Class 6H Right Hand 24 mm External Hex Black-Phosphate Steel 16 mm Distorted Thread Locknut; Hex
1196FA00002 M16 Metric Class 6H Right Hand 24 mm External Hex Steel 14.6 mm Steel Insert Locknut, Hex
1192FA00006 M16 Metric Class 6H Right Hand 24 mm External Hex Steel 19 mm Cotter Pin Locknut, Hex
1192FA00021 M16 Metric Class 6H Right Hand 24 mm External Hex Steel 19 mm Cotter Pin Locknut, Hex
1167FA00083 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc Yellow-Chromate Plated Steel 16 mm Distorted Thread Locknut; Hex
1167FA00120 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc Yellow-Chromate Plated Steel 16 mm Distorted Thread Locknut; Hex
1142FA00030 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc Yellow-Chromate Plated Steel 16 mm Nylon Insert Locknut, Hex
1142FA00040 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc Yellow-Chromate Plated Steel 18 mm Nylon Insert Locknut, Hex
1176FA00014 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 13 mm Distorted Thread Locknut, Hex
1176FA00015 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 13 mm Distorted Thread Locknut, Hex
1168FA00009 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 16 mm Distorted Thread Locknut, Hex
1168FA00019 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 16 mm Distorted Thread Locknut, Hex
1167FA00071 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 16 mm Distorted Thread Locknut; Hex
1167FA00091 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 16 mm Distorted Thread Locknut; Hex
1142FA00009 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 16 mm Nylon Insert Locknut, Hex
1143FA00009 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 16 mm Nylon Insert Locknut, Hex
1144FA00015 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 16 mm Nylon Insert Locknut, Hex
1140FA00005 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 16 mm Nylon Insert Locknut, Hex
1139FA00015 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 16 mm Nylon Insert Locknut, Hex
1142FA00057 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 18 mm Nylon Insert Locknut, Hex
1139FA00031 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 18 mm Nylon Insert Locknut, Hex
1143FA00025 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 18 mm Nylon Insert Locknut, Hex
1192FA00017 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 19 mm Cotter Pin Locknut, Hex
1192FA00027 M16 Metric Class 6H Right Hand 24 mm External Hex Zinc-Plated Steel 19 mm Cotter Pin Locknut, Hex
1147FA00018 M18 Metric Class 6H Right Hand 27 mm External Hex 18-8 Stainless Steel 18 mm Nylon Insert Locknut, Hex
1147FA00027 M18 Metric Class 6H Right Hand 27 mm External Hex 18-8 Stainless Steel 18.5 mm Nylon Insert Locknut, Hex
1184FA00010 M18 Metric Class 6H Right Hand 27 mm External Hex 18-8 Stainless Steel 23.4 mm Flex-Top Locknut, Hex
1150FA00021 M18 Metric Class 6H Right Hand 27 mm External Hex 316 Stainless Steel 18.5 mm Nylon Insert Locknut; Hex
1192FA00007 M18 Metric Class 6H Right Hand 27 mm External Hex Steel 21 mm Cotter Pin Locknut, Hex
1167FA00084 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc Yellow-Chromate Plated Steel 18 mm Distorted Thread Locknut; Hex
1142FA00031 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc Yellow-Chromate Plated Steel 18.5 mm Nylon Insert Locknut, Hex
1168FA00010 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 18 mm Distorted Thread Locknut, Hex
1168FA00021 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 18 mm Distorted Thread Locknut, Hex
1167FA00072 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 18 mm Distorted Thread Locknut; Hex
1167FA00092 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 18 mm Distorted Thread Locknut; Hex
1140FA00006 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 18 mm Nylon Insert Locknut, Hex
1143FA00001 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 18.5 mm Nylon Insert Locknut, Hex
1142FA00010 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 18.5 mm Nylon Insert Locknut, Hex
1144FA00017 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 18.5 mm Nylon Insert Locknut, Hex
1139FA00016 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 18.5 mm Nylon Insert Locknut, Hex
1142FA00058 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 20 mm Nylon Insert Locknut, Hex
1139FA00032 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 20 mm Nylon Insert Locknut, Hex
1192FA00002 M18 Metric Class 6H Right Hand 27 mm External Hex Zinc-Plated Steel 21 mm Cotter Pin Locknut, Hex
1147FA00002 M2 Metric Class 6H Right Hand 4 mm External Hex 18-8 Stainless Steel 2.8 mm Nylon Insert Locknut, Hex
1142FA00020 M2 Metric Class 6H Right Hand 4 mm External Hex Zinc-Plated Steel 2.8 mm Nylon Insert Locknut, Hex
1147FA00003 M2.5 Metric Class 6H Right Hand 5 mm External Hex 18-8 Stainless Steel 3.8 mm Nylon Insert Locknut, Hex
1150FA00001 M2.5 Metric Class 6H Right Hand 5 mm External Hex 316 Stainless Steel 3.8 mm Nylon Insert Locknut; Hex
1142FA00015 M2.5 Metric Class 6H Right Hand 5 mm External Hex Zinc-Plated Steel 3.8 mm Nylon Insert Locknut, Hex
1147FA00019 M20 Metric Class 6H Right Hand 30 mm External Hex 18-8 Stainless Steel 20 mm Nylon Insert Locknut, Hex
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