Stainless Steel Flat Washer 316 (A4)
A4 (AISI 316) Form A flat washer to DIN 125 / ISO 7089 for metric bolted joints in corrosive environments. Sold per piece.
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Available Sizes & Finishes
24 sizes available
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Applications & Selection Guide
A4 (AISI 316) Form A flat washers to DIN 125 / ISO 7089 for metric bolted joints exposed to chlorides or aggressive process conditions.
Pair A4 washers with A4 bolts and nuts in marine, coastal, poolside, wastewater, and chemical-service assemblies so the connection maintains a consistent corrosion-resistance grade.
Choose the matching metric bolt size above and request a quote with quantity and destination.
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 →Washer sizes: DIN 125 / ISO 7089 flat washers, DIN 7989 structural washers and DIN 6916 HV washers
Inner diameter, outer diameter, thickness and weight per 1000 pieces of DIN 125 / ISO 7089 flat washers from M3 to M60, DIN 7989 structural washers and DIN 6916 HV washers.
Read the guide →Product Information
Material Grade
A4 / AISI 316
Manufacturing Standard
DIN 125 / ISO 7089
Material Type
Stainless Steel
Category
Flat Washer 316
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