Steel All-Metal Lock Nut, Class 10
ISO 898-2 class 10 all-metal prevailing-torque lock nuts to DIN 980 / ISO 7042. High-preload metal locking for class 10.9 joints where nylon inserts would soften. Listed M6–M20.
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Available Sizes & Finishes
8 sizes available
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Applications & Selection Guide
ISO 898-2 property class 10 all-metal prevailing-torque lock nuts to DIN 980 / ISO 7042. Alloy-steel deformed-crown locking — no nylon — for class 10.9 joints that see heat, solvents, or a specification that forbids polymer inserts. Metric coarse, listed M6–M20.
Specify with 10.9 bolts on compact, high-clamp assemblies that also see heat or chemicals. A class 8 metal lock nut under a 10.9 bolt is undersized. Confirm any zinc or organic coating against hydrogen-embrittlement practice for high-strength fasteners. For structural HV pretension use DIN 6915 + DIN 6916, not this nut.
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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 980 / ISO 7042
Material Type
Steel
Category
All-Metal Lock Nut
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