All-Metal Prevailing Torque Nut

3D

A lock nut with a crimped top that grips the bolt thread, so it stays tight under vibration. The crimped section deforms elastically to create friction on the thread, preventing loosening without a separate insert. Install with a standard wrench; no special tool is needed. Typical uses include engines, vehicles, and machinery where joints run hot or vibrate.

Matching components

Grade C Full Thread Hex BoltISO 4018 · M6–M24Grade C Partial Thread Hex BoltISO 4016 · M6–M24Stud Bolt, Metal End 1dDIN 938 · M6–M20Threaded RodDIN 975 · M6–M36Chamfered Flat WasherISO 7090 · M5–M36Grade C Flat WasherISO 7091 · M5–M36

Questions

All-metal or nylon insert lock nut?

A nylon insert works up to 120 °C. The all-metal nut has no insert, so it keeps locking where heat would soften nylon.

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 NutDIN 985 · M4–M36High Nylon Insert Lock NutDIN 982 · M5–M24Hex NutDIN 934 · M3–M36Chamfered Thin Hex NutDIN 439 · M6–M36High Hex NutISO 4033 · M5–M36Tall Hex NutDIN 6330 · M6–M24