Stainless Steel Hex Nut 316 (A4)
A4-70 (AISI 316) hex nut to DIN 934 / ISO 4032 for metric threaded assemblies in corrosive environments. Sold per piece.
Choose a size below and add it to your quote.
Applications & Selection Guide
A4-70 (AISI 316) hex nuts to DIN 934 / ISO 4032 — the chloride-resistant mating nut for A4 bolts and threaded rod.
Specify A4 nuts in marine, poolside, wastewater, and chemical service, always matched with A4 male fasteners: a mixed A2/A4 joint corrodes at the weaker component. Lubricate threads at assembly to avoid galling. Available metric sizes are in the table above.
Sold per piece with a 50–100 piece minimum order depending on size. Include sizes and quantities in your quote request together with the matching bolts or rod.
Technical guides
304 vs 316 stainless steel: composition, strength, corrosion resistance and when to use each
How 304 (1.4301) and 316 (1.4401/1.4404) stainless steel differ in composition, PREN, strength and chloride resistance, what the L grades and A2/A4 fasteners mean, and which grade to choose.
Read the guide →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
A4-70 / AISI 316
Manufacturing Standard
DIN 934 / ISO 4032
Material Type
Stainless Steel
Category
Hex Nut 316
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