Nylock Nut
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WhatsApp us Get a Quote +91 90333 11425 Download catalogue (PDF)JMIKS Fasteners supplies nylock nuts (nylon insert lock nuts) in SS 304, SS 316 and SS 202, and in mild steel and high tensile grades, from M3 to M36 and ¼” to 1-1/4″ BSW. The nylon ring stops the nut from working loose under vibration.
Standard : DIN / IS / AISI
Size : Metric : M3 To M36 / BSW : ¼” to 1-1/4”
Material Grade: SS304 | SS316 | SS202 | 4.6 |8.8 | 10.9 | 12.9
Finish : Zinc Plated , HDG , Self finish
A nylon ring sits inside the top of the nut. When the bolt passes through, it cuts its own thread in the nylon, which grips the bolt and stops the nut from loosening under vibration. The common standards are DIN 985 / ISO 10511 (thin type) and DIN 982 / ISO 7040 (regular height).
It can be reused a few times, but the nylon loses some grip each time. For critical joints, fit a new nylock nut.
Standard nylon inserts are suitable up to about 120 °C. For hotter places, use a spring washer or a lock nut instead.
Both are nylon insert lock nuts. DIN 985 is the lower, thin type used for most jobs. DIN 982 is taller and is used where more thread engagement is needed.
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