Description
ISO 10511 NUT M4 STEEL PREVAILING TORQUE TYPE HEXAGON THIN — BOLTON SKU 69195.
About the ISO 10511 NUT M4 STEEL PREVAILING
This item is a hexagon thin nut manufactured to ISO 10511, the international standard for prevailing-torque type hexagon thin nuts with a non-metallic insert. A polymer ring captive in the top of the nut deforms around the bolt thread as the nut is run down, generating a prevailing torque that resists self-loosening under vibration without any additional locking device — the familiar ‘nyloc’ locking principle in a reduced-height body. The M4 size uses the standard metric coarse thread of 0.7 mm pitch with a 7 mm width across flats. The thin (low-profile) style suits joints with limited axial space or applications where a lock nut is run against another nut. The nut is steel, as designated. Because the insert is non-metallic, standard practice limits service temperature to the insert material’s capability, and reuse is restricted since locking torque falls with each application.
Key specifications
| Standard | ISO 10511 — prevailing-torque hexagon thin nuts, non-metallic insert |
|---|---|
| Nominal thread | M4 × 0.7 (metric coarse) |
| Width across flats | 7 mm |
| Style | Thin (low-profile) hexagon lock nut |
| Material | Steel |
| Locking principle | Non-metallic insert, prevailing torque |
Typical applications
ISO 10511 thin lock nuts are used in vibration-exposed bolted joints across equipment assembly, vehicle and airframe support hardware, jigs and fixtures, and general MRO fastening where a low-profile self-locking nut is required.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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