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High Nylon Insert Lock Nut

A full-height hex nut with a nylon ring that grips the bolt thread, so it stays tight under vibration. The nylon insert deforms around the thread to create friction, preventing loosening from shock or movement. Install with a standard wrench and tighten until the bolt protrudes past the nylon ring. Commonly used on machinery, vehicles and equipment that vibrate.

In stockShips within 3 working daysMade to orderShips within 15 working days

M5 × 0.814 variantss8max.e8.79min.da5.75max.
SizeMaterialGradeFinishStockMOQpcs≈ kg/ 1,000 pcsQuantitypcs
M5Stainless SteelA2-70PassivatedIn stock2,0001.41
M5Stainless SteelA2-70PlainIn stock2,0001.41
M5Stainless SteelA4-80PassivatedIn stock2,0001.41
M5Stainless SteelA4-80PlainIn stock2,0001.41
M5Carbon SteelClass 8PlainIn stock2,0001.40
M5Carbon SteelClass 8Zinc PlatedIn stock2,0001.41
M5Carbon SteelClass 8DacrometIn stock2,0001.41
M5Carbon SteelClass 8BlackenedIn stock2,0001.40
M5Carbon SteelClass 8PhosphateIn stock2,0001.40
M5Carbon SteelClass 10PlainIn stock2,0001.40
M5Carbon SteelClass 10Zinc PlatedIn stock2,0001.41
M5Carbon SteelClass 10DacrometIn stock2,0001.41
M5Carbon SteelClass 10BlackenedIn stock2,0001.40
M5Carbon SteelClass 10PhosphateIn stock2,0001.40
M6 × 114 variantss10max.e11.05min.da6.75max.
SizeMaterialGradeFinishStockMOQpcs≈ kg/ 1,000 pcsQuantitypcs
M6Stainless SteelA2-70PassivatedIn stock2,0003.13
M6Stainless SteelA2-70PlainIn stock2,0003.13
M6Stainless SteelA4-80PassivatedIn stock2,0003.13
M6Stainless SteelA4-80PlainIn stock2,0003.13
M6Carbon SteelClass 8PlainIn stock2,0003.10
M6Carbon SteelClass 8Zinc PlatedIn stock2,0003.12
M6Carbon SteelClass 8DacrometIn stock2,0003.11
M6Carbon SteelClass 8BlackenedIn stock2,0003.10
M6Carbon SteelClass 8PhosphateIn stock2,0003.10
M6Carbon SteelClass 10PlainIn stock2,0003.10
M6Carbon SteelClass 10Zinc PlatedIn stock2,0003.12
M6Carbon SteelClass 10DacrometIn stock2,0003.11
M6Carbon SteelClass 10BlackenedIn stock2,0003.10
M6Carbon SteelClass 10PhosphateIn stock2,0003.10
M8 × 1.2516 variantss13max.e14.38min.da8.75max.
SizeMaterialGradeFinishStockMOQpcs≈ kg/ 1,000 pcsQuantitypcs
M8Stainless SteelA2-70PassivatedIn stock2,0006.06
M8Stainless SteelA2-70PlainIn stock2,0006.06
M8Stainless SteelA4-80PassivatedIn stock2,0006.06
M8Stainless SteelA4-80PlainIn stock2,0006.06
M8Carbon SteelClass 8PlainIn stock2,0006.00
M8Carbon SteelClass 8Zinc PlatedIn stock2,0006.03
M8Carbon SteelClass 8Hot Dip GalvanizedIn stock2,0006.23
M8Carbon SteelClass 8DacrometIn stock2,0006.02
M8Carbon SteelClass 8BlackenedIn stock2,0006.00
M8Carbon SteelClass 8PhosphateIn stock2,0006.00
M8Carbon SteelClass 10PlainIn stock2,0006.00
M8Carbon SteelClass 10Zinc PlatedIn stock2,0006.03
M8Carbon SteelClass 10Hot Dip GalvanizedIn stock2,0006.23
M8Carbon SteelClass 10DacrometIn stock2,0006.02
M8Carbon SteelClass 10BlackenedIn stock2,0006.00
M8Carbon SteelClass 10PhosphateIn stock2,0006.00
M10 × 1.516 variantss17max.e18.9min.da10.8max.ISO 7040: s = 16 mm, e ≥ 17.77 mm
SizeMaterialGradeFinishStockMOQpcs≈ kg/ 1,000 pcsQuantitypcs
M10Stainless SteelA2-70PassivatedIn stock1,00011.82
M10Stainless SteelA2-70PlainIn stock1,00011.82
M10Stainless SteelA4-80PassivatedIn stock1,00011.82
M10Stainless SteelA4-80PlainIn stock1,00011.82
M10Carbon SteelClass 8PlainIn stock1,00011.70
M10Carbon SteelClass 8Zinc PlatedIn stock1,00011.75
M10Carbon SteelClass 8Hot Dip GalvanizedIn stock1,00012.08
M10Carbon SteelClass 8DacrometIn stock1,00011.73
M10Carbon SteelClass 8BlackenedIn stock1,00011.70
M10Carbon SteelClass 8PhosphateIn stock1,00011.70
M10Carbon SteelClass 10PlainIn stock1,00011.70
M10Carbon SteelClass 10Zinc PlatedIn stock1,00011.75
M10Carbon SteelClass 10Hot Dip GalvanizedIn stock1,00012.08
M10Carbon SteelClass 10DacrometIn stock1,00011.73
M10Carbon SteelClass 10BlackenedIn stock1,00011.70
M10Carbon SteelClass 10PhosphateIn stock1,00011.70
M12 × 1.7516 variantss19max.e21.1min.da13max.ISO 7040: s = 18 mm, e ≥ 20.03 mm
SizeMaterialGradeFinishStockMOQpcs≈ kg/ 1,000 pcsQuantitypcs
M12Stainless SteelA2-70PassivatedIn stock1,00016.77
M12Stainless SteelA2-70PlainIn stock1,00016.77
M12Stainless SteelA4-80PassivatedIn stock1,00016.77
M12Stainless SteelA4-80PlainIn stock1,00016.77
M12Carbon SteelClass 8PlainIn stock1,00016.60
M12Carbon SteelClass 8Zinc PlatedIn stock1,00016.67
M12Carbon SteelClass 8Hot Dip GalvanizedIn stock1,00017.13
M12Carbon SteelClass 8DacrometIn stock1,00016.64
M12Carbon SteelClass 8BlackenedIn stock1,00016.60
M12Carbon SteelClass 8PhosphateIn stock1,00016.60
M12Carbon SteelClass 10PlainIn stock1,00016.60
M12Carbon SteelClass 10Zinc PlatedIn stock1,00016.67
M12Carbon SteelClass 10Hot Dip GalvanizedIn stock1,00017.13
M12Carbon SteelClass 10DacrometIn stock1,00016.64
M12Carbon SteelClass 10BlackenedIn stock1,00016.60
M12Carbon SteelClass 10PhosphateIn stock1,00016.60
M16 × 216 variantss24max.e26.75min.da17.3max.
SizeMaterialGradeFinishStockMOQpcs≈ kg/ 1,000 pcsQuantitypcs
M16Stainless SteelA2-70PassivatedIn stock1,00038.19
M16Stainless SteelA2-70PlainIn stock1,00038.19
M16Stainless SteelA4-80PassivatedIn stock1,00038.19
M16Stainless SteelA4-80PlainIn stock1,00038.19
M16Carbon SteelClass 8PlainIn stock1,00037.80
M16Carbon SteelClass 8Zinc PlatedIn stock1,00037.92
M16Carbon SteelClass 8Hot Dip GalvanizedIn stock1,00038.68
M16Carbon SteelClass 8DacrometIn stock1,00037.88
M16Carbon SteelClass 8BlackenedIn stock1,00037.80
M16Carbon SteelClass 8PhosphateIn stock1,00037.80
M16Carbon SteelClass 10PlainIn stock1,00037.80
M16Carbon SteelClass 10Zinc PlatedIn stock1,00037.92
M16Carbon SteelClass 10Hot Dip GalvanizedIn stock1,00038.68
M16Carbon SteelClass 10DacrometIn stock1,00037.88
M16Carbon SteelClass 10BlackenedIn stock1,00037.80
M16Carbon SteelClass 10PhosphateIn stock1,00037.80
M20 × 2.516 variantss30max.e32.95min.da21.6max.
SizeMaterialGradeFinishStockMOQpcs≈ kg/ 1,000 pcsQuantitypcs
M20Stainless SteelA2-70PassivatedIn stock50068.69
M20Stainless SteelA2-70PlainIn stock50068.69
M20Stainless SteelA4-80PassivatedIn stock50068.69
M20Stainless SteelA4-80PlainIn stock50068.69
M20Carbon SteelClass 8PlainIn stock50068.00
M20Carbon SteelClass 8Zinc PlatedIn stock50068.19
M20Carbon SteelClass 8Hot Dip GalvanizedIn stock50069.34
M20Carbon SteelClass 8DacrometIn stock50068.11
M20Carbon SteelClass 8BlackenedIn stock50068.00
M20Carbon SteelClass 8PhosphateIn stock50068.00
M20Carbon SteelClass 10PlainIn stock50068.00
M20Carbon SteelClass 10Zinc PlatedIn stock50068.19
M20Carbon SteelClass 10Hot Dip GalvanizedIn stock50069.34
M20Carbon SteelClass 10DacrometIn stock50068.11
M20Carbon SteelClass 10BlackenedIn stock50068.00
M20Carbon SteelClass 10PhosphateIn stock50068.00
M24 × 316 variantss36max.e39.55min.da25.9max.
SizeMaterialGradeFinishStockMOQpcs≈ kg/ 1,000 pcsQuantitypcs
M24Stainless SteelA2-70PassivatedIn stock500128.29
M24Stainless SteelA2-70PlainIn stock500128.29
M24Stainless SteelA4-80PassivatedIn stock500128.29
M24Stainless SteelA4-80PlainIn stock500128.29
M24Carbon SteelClass 8PlainIn stock500127.00
M24Carbon SteelClass 8Zinc PlatedIn stock500127.27
M24Carbon SteelClass 8Hot Dip GalvanizedIn stock500128.92
M24Carbon SteelClass 8DacrometIn stock500127.16
M24Carbon SteelClass 8BlackenedIn stock500127.00
M24Carbon SteelClass 8PhosphateIn stock500127.00
M24Carbon SteelClass 10PlainIn stock500127.00
M24Carbon SteelClass 10Zinc PlatedIn stock500127.27
M24Carbon SteelClass 10Hot Dip GalvanizedIn stock500128.92
M24Carbon SteelClass 10DacrometIn stock500127.16
M24Carbon SteelClass 10BlackenedIn stock500127.00
M24Carbon SteelClass 10PhosphateIn stock500127.00

124 combinations shown

Matching components

Fully Threaded Hex Bolt DIN 933Full Thread Hex BoltDIN 933 · M3–M24Hexagon Head Bolt Partial Thread DIN 931Partial Thread Hex BoltDIN 931 · M4–M24Stud Bolt, Metal End 1d DIN 938Stud Bolt, Metal End 1dDIN 938 · M6–M24Threaded Rod DIN 975Threaded RodDIN 975 · M6–M36Flat Washer, Form A DIN 125Flat WasherDIN 125 · M3–M36Heavy Flat Washer for Spring Pin Bolts DIN 7349Heavy Duty Flat WasherDIN 7349 · M3–M24

Questions

DIN 982 has been withdrawn — is ISO 7040 the same part?

In the sizes we list, only the wrench size and overall height differ: wrench size: M10 is 17 mm on DIN 982 against 16 mm on ISO 7040 and M12 is 19 mm against 18 mm; overall height: M5 is 6.3 mm against 6.8 mm, M10 is 11.5 mm against 11.9 mm, M12 is 14 mm against 14.9 mm and M16 is 18 mm against 19.1 mm, plus 2 more sizes. M6 and M8 are the same in both. We still make it to the DIN 982 table for existing drawings.

Why is there no hot-dip galvanized option below M8?

The zinc layer is too thick for smaller threads, so hot-dip galvanizing starts at M8.

High or low nylon insert lock nut?

This high version is full height and carries the full load of a matching bolt. The low version (DIN 985) is lighter but carries less load.

Order assurance

Reports & inspection

  • EN 10204 3.1 material certificate
  • Dimensional inspection report
  • Certificate of conformity
  • Mechanical test report
  • Chemical analysis report
  • Coating inspection report
  • Batch and lot traceability

Packaging & delivery

  • Bulk carton packing
  • Small boxes with outer cartons
  • Palletized shipment
  • Fumigation-free pallets
  • Inner poly bags
  • Buyer branding and labels

Related products

Nylon Insert Lock Nut DIN 985Nylon Insert Lock NutDIN 985 · M3–M36All-Metal Prevailing Torque Nut ISO 7042All-Metal Lock NutISO 7042 · M5–M36Hexagon Full Nut DIN 934Hex NutDIN 934 · M3–M36Hexagon Thin Nut, Chamfered DIN 439Chamfered Thin Hex NutDIN 439 · M3–M36Hex Nut, Style 2 (High) ISO 4033High Hex NutISO 4033 · M5–M36Hex Nut, Height 1.5d DIN 6330Tall Hex NutDIN 6330 · M6–M24
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