Available Sizes & Finishes
22 sizes available
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Applications & Selection Guide
ISO 898-2 property class 10 slotted castle nuts to DIN 935 / ISO 7035. High-strength castellated nuts for class 10.9 assemblies specified with cotter-pin retention. Listed M4–M52. Use only with drilled 10.9 male fasteners — a class 8 castle nut under 10.9 is undersized.
Use only with 10.9 male fasteners that are drilled for a pin. High-preload 10.9 joints more often use prevailing-torque or HV methods; castle nuts appear where the specification still requires a visible mechanical lock. Confirm coating of class 10 parts.
Include sizes, quantities, coating, and destination. Split pins and matching 10.9 bolts can be added to the same enquiry.
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 935 / ISO 7035
Material Type
Steel
Category
Castle Nut
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