Description
1143735 NUT; NYLOCK M2.5 SS BN 637 DIN 985 — BOLTON SKU 67764.
About the 1143735 Nylock Nut, M2.5 DIN 985 Stainless
The 1143735 is a nylon-insert self-locking hex nut (nylock nut) in thread size M2.5, manufactured in stainless steel and designated to Bossard series BN 637 and the DIN 985 standard, per the item description. DIN 985 defines prevailing-torque hex nuts of thin (low-profile) pattern with a non-metallic polyamide insert: as the nut is driven onto the bolt, the insert deforms around the thread and generates friction that resists rotation under vibration without damaging the mating thread. Bossard catalogues BN 637 as its stainless prevailing-torque hex lock nut series with polyamide insert. At M2.5 this is a miniature fastener size typical of electronics packaging and small mechanism assembly. Property class and exact stainless grade should be confirmed against the Bossard catalogue sheet at order stage.
Key specifications
| Type | Prevailing-torque hex lock nut with polyamide insert |
|---|---|
| Standard | DIN 985 (per designation) |
| Manufacturer series | Bossard BN 637 |
| Thread size | M2.5 |
| Material | Stainless steel |
| Locking feature | Nylon (polyamide) insert |
Typical applications
Miniature nylock nuts secure avionics boards, UAV subassemblies, instrument housings and small mechanisms subject to vibration. They are standard MRO consumables wherever M2.5 hardware must stay tight without thread adhesives.
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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