Nyloc nuts are the everyday vibration-proof nut, and we stock DIN 985 / ISO 10511 (thin) and DIN 982 / ISO 7040 (high) in Umm Al Quwain from M3 to M36 and ¼" to 1½", in class 8 and 10 and stainless A2 / A4, zinc plated, hot-dip galvanized or plain.
A nylon insert lock nut has a nylon ring pressed into a collar at the top of the nut. As the bolt thread cuts through the nylon it creates a prevailing torque that resists loosening under vibration and shock, without damaging the bolt thread. Nyloc nuts are rated for continuous service up to about 120 °C; above that use an all-metal prevailing-torque nut (DIN 980 / ISO 7042). They can be reused a few times but the locking effect reduces.
Applications
- Vehicle chassis, suspension and body fixings
- Conveyors, screens and vibrating machinery
- Pumps, fans, motors and compressors
- Playground, fencing and modular structures
- Electrical enclosures and cable tray
- Marine, boat and pool fittings (A4)
Standards, grades & finishes
Nuts to DIN 985 / ISO 10511 (thin type) and DIN 982 / ISO 7040 (high type), property class 8 and 10 to ISO 898-2, stainless A2-70 / A4-80 to ISO 3506-2, threads ISO 965 6H coarse; fine to DIN 985-2. Imperial to ASME B18.16.6 Grade 5 / 8. Finishes zinc plated to ISO 4042 (blue / yellow), hot-dip galvanized, plain stainless. Prevailing torque tested to ISO 2320.
This item is imported from approved mills and held in stock in our Umm Al Quwain warehouse alongside the anchor bolts, studs and plate washers we manufacture ourselves, so complete bolt sets ship from one source. Tensile, hardness and chemical testing is carried out by independent UAE-accredited laboratories, and EN 10204 3.1 certificates are issued with every batch. We supply across the GCC, MENA and Africa.