A4 70 Bolts, 316 Stainless Steel, Hex Bolt, Nut, Stud, Screw, Washer, DIN 931, 933, 934, 7991, 976, 125, Metric Threads

A4 70 Bolts, 316 Stainless Steel, Hex Bolt, Nut, Stud, Screw, Washer, DIN 931, 933, 934, 7991, 976, 125, Metric Threads



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A4 70 Bolts are manufactured from 316 Stainless Steel in accordance with EN 3506 specification. Torqbolt is a prominent A470 Bolt supplier in India.

316 Stainless Steel

Austenitic Steel

Cold Worked

– Finish: Pickling and Passivation

– Compatible Fasteners: A4-70 Nuts | 316 Stainless Steel Washers

– Marking: TorqBolt | THE A4-70

– Type: Cold Forged, Hot Forged, Bar Stock Machined, Bar Stock Milling


Product Features

DimensionsDIN 931, 933, 934, 7991, 976, 125
ThreadsUnless otherwise specified, the threads shall be rolled or cut at the option of TorqBolt
Threads ConfigurationASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads
Melt OriginIndia/Taiwan
Product OriginMade in India
CertificationDual Certified As per ASTM & ASME Codes
Additional CertificationsPED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Additional RequirementsNACE MR0103/MR0175/ISO 15156 Compliance
Mandatory RequirementsFree from Mercury & Radioactive Contamination

EN 3506-1 A4 70 Bolt Specification

AISI 316 is an austentic grade second to 304 in commercial importance It has additional molybdenum which gives improved corossion resistance when exposed to chlorides, it is immune to grain bundaries carbide precipitation. It is suited to use in heavy guage (over 6mm welded component) stainless steel 316 is used in food processing equipment, chemical and petrochemical equipment, coastal architecture, boat fittings, chemical transportation containers etc. It has good resistance to oxidation.

EN 3506-1 A4 70 Bolt Properties

Chemical Mechanical Physical Heat Treatment

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Rods, Bars and Wires confirming to ASTM A262 IGC practice “A” or “E” are available ex-stock at TorqBolt. Pitch Dia A4-70 Round Bars from ¼ inch -4 inch & 6mm – 100mm in 1 meter, 3 meter & 6 Meter lengths. All Bar Rounds comply EN 3506 Specification .

Surface Discontinuity: ASTM A193 / A320 / F593 / F594 / A638 Bolts, Nuts & threaded rods are manufactured in accordance with surface discontinuities acceptable as per ASTM F788/F788M Specification.