Available Sizes & Finishes
24 sizes available
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Applications & Selection Guide
ISO 898-2 property class 8 thin hexagon (jam) nuts to DIN 439 / ISO 4035. Quenched and tempered, roughly half the height of a DIN 934 nut, metric coarse thread. Listed M3–M56. Intended as a jam nut or low-profile nut on class 8.8 assemblies — not as a stand-alone full-height clamp.
Use as a jam nut against a class 8 DIN 934, or in shallow pockets on machinery where a standard nut fouls a casting or cover. Do not rely on a thin nut alone to develop the full proof load of an 8.8 bolt. Keep class matched — a class 5 jam nut on 8.8 is the weak link.
Request a quote with metric sizes, quantities, surface finish (plain, zinc, or HDG), and delivery country. Full-height class 8 nuts and 8.8 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 8
Manufacturing Standard
DIN 439 / ISO 4035
Material Type
Steel
Category
Thin Hex Nut
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