Available Sizes & Finishes
24 sizes available
Filters
Diameter (mm)
Thickness (mm)
Applications & Selection Guide
ISO 898-2 class 5 thin hexagon (jam) nuts to DIN 439 / ISO 4035. Height is roughly half a standard DIN 934 nut, metric coarse thread. Listed M3–M56. Intended for class 4.8 assemblies.
Two roles: (1) lock a standard nut by jamming against it, (2) fit where headroom is too small for a full-height nut. A thin nut used alone has less thread engagement — do not treat it as the primary clamp on a loaded 4.8 joint unless the design accounts for the reduced height. For vibration locking, a DIN 985 lock nut is usually clearer than a jam pair.
Select metric sizes above. Quote with quantity, coating, and destination; full-height class 5 nuts and 4.8 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 5
Manufacturing Standard
DIN 439 / ISO 4035
Material Type
Steel
Category
Thin Hex Nut
Ready to request pricing?
Add sizes to your quote cart, or paste your full list — Excel, CSV, or plain text.