Steel Nylon-Insert Lock Nut, Class 10
ISO 898-2 class 10 nylon-insert lock nuts to DIN 985 / ISO 10511. High-strength prevailing-torque nuts for class 10.9 bolts where vibration and preload both matter. Listed M3–M39.
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Available Sizes & Finishes
19 sizes available
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Applications & Selection Guide
ISO 898-2 property class 10 nylon-insert prevailing-torque lock nuts to DIN 985 / ISO 10511. High-strength hex body with a polyamide crown ring, metric coarse thread, listed M3–M39. Pair only with ISO 898-1 class 10.9 bolts so the nut can carry the preload.
Choose class 10 lock nuts only with 10.9 fasteners when the joint needs both high clamp force and resistance to rotation. Nylon still limits temperature — for hot equipment, exhaust-adjacent steelwork, or reusable metal locking use DIN 980 class 10. Confirm coating compatibility with the 10.9/class 10 heat treatment.
Include sizes, quantities, coating, and destination. Matching 10.9 bolts can be quoted in the same request.
Technical guides
Bolt grades and sizes: 8.8, 10.9, 12.9, A2 and A4, and metric hex bolt dimensions
What the property classes 4.8, 8.8, 10.9 and 12.9 and stainless A2-70 and A4-70 mean, minimum strength and tensile loads, metric thread pitch and hex head sizes, DIN 933 vs DIN 931, and which nut goes with which bolt.
Read the guide →Nut and washer types compared: hex, lock, flange, castle, coupling, cap and HV nuts, flat, spring and structural washers, with their standards
How hex, thin, nylon-insert and all-metal lock, flange, castle, coupling, cap, wing and HV nuts differ, which nut class goes with which bolt, and when to use DIN 125, DIN 127, DIN 7989 and DIN 6916 washers.
Read the guide →Product Information
Material Grade
ISO 898-2 class 10
Manufacturing Standard
DIN 985 / ISO 10511
Material Type
Steel
Category
Nylon-Insert Lock Nut
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