Stainless Steel Socket Cap Screw 316
A4-70 (AISI 316) socket head cap screw to DIN 912 / ISO 4762 for compact, high-strength metric fastening. Sold per piece in M×L sizes.
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Available Sizes & Finishes
263 sizes available
Filters
Diameter (mm)
Thickness (mm)
Applications & Selection Guide
A4-70 (AISI 316) socket head cap screws to DIN 912 / ISO 4762 for counterbored, high-torque fastening in corrosive environments.
Specify A4 socket screws for marine equipment, coastal architecture, pool machinery, and chemical process fixtures where A2 would pit. Combine with A4 nuts or tapped holes in 316 components, and lubricate to prevent thread galling. Available M×L combinations are in the table above.
Sold per piece with a 50–100 piece minimum order depending on size. Include sizes, quantities, and destination in your quote request.
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 →Screw types compared: socket head, countersunk, set, carriage, tapping and self-drilling screws, with their DIN and ISO standards
How socket head, button head, countersunk, low-head and set screws differ, what DIN 912, ISO 7380, DIN 7991, DIN 916, DIN 603, DIN 965, DIN 7981 and DIN 7504 stand for, and which screw to order for machinery, timber and sheet metal.
Read the guide →Product Information
Material Grade
A4-70 / AISI 316
Manufacturing Standard
DIN 912 / ISO 4762
Material Type
Stainless Steel
Category
Socket Cap Screw 316
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