BIS Standards Reference
DIN / ISO / ASTM / IS cross reference.
A broad procurement cross-reference for fastener dimensions, materials, property classes, structural systems, threads, coatings and inspection documents. A related standard is not automatically an interchangeable standard.
75 rows
| Product / subject | DIN / legacy | ISO / EN | ASTM / IS / other | Procurement note |
|---|---|---|---|---|
| Hex bolt, partial thread | DIN 931 | ISO 4014 | IS 1364 / project spec | Across-flats changes exist in selected sizes. |
| Hex screw, full thread | DIN 933 | ISO 4017 | IS 1364 / project spec | Check dimensional transition from legacy DIN to ISO. |
| Fine-pitch hex bolt, partial thread | DIN 960 | ISO 8765 | — | Pitch must be stated; not interchangeable with coarse thread. |
| Fine-pitch hex screw, full thread | DIN 961 | ISO 8676 | — | Verify pitch and thread tolerance. |
| Socket head cap screw | DIN 912 | ISO 4762 | IS 2269 commonly referenced in India | Property class and socket dimensions must match. |
| Countersunk socket screw | DIN 7991 | ISO 10642 | — | Countersink geometry and head height need checking. |
| Carriage / cup-square bolt | DIN 603 | ISO 8677 | IS 2609 commonly referenced | Verify square-neck and head geometry. |
| Lifting eye bolt | DIN 580 | ISO 3266 related lifting standard | — | Lifting capacity requires the exact governing standard and installation conditions. |
| Slotted cheese-head screw | DIN 84 | ISO 1207 | — | Legacy designation commonly appears on maintenance enquiries. |
| Slotted pan-head screw | DIN 85 | ISO 1580 | — | Check head dimensions before substitution. |
| Slotted countersunk screw | DIN 963 | ISO 2009 | — | Head angle and drive details must match. |
| Cross-recess pan-head screw | DIN 7985 | ISO 7045 | — | Verify recess type and head dimensions. |
| Cross-recess countersunk screw | DIN 965 | ISO 7046 family | — | Confirm recess style and property class. |
| Button-head socket screw | — | ISO 7380 family | — | Check whether flange/non-flange form is required. |
| Coach / lag screw | DIN 571 | No simple one-number ISO replacement | — | Wood-screw geometry is application specific. |
| Thread-forming screw for metals | DIN 7500 family | ISO/DIN product family varies | — | Hole preparation and material thickness govern application. |
| General carbon-steel bolts | — | — | ASTM A307 | ASTM material/mechanical specification; dimensions are specified separately. |
| Quenched and tempered general bolt | — | — | ASTM A449 | Mechanical/material specification, not a DIN dimensional equivalent. |
| Socket-head cap screw material | — | — | ASTM A574 | Alloy-steel socket-head specification; dimensions still need product standard. |
| Hexagon regular nut | DIN 934 | ISO 4032 | IS 1364 / ASTM grades separately | Legacy DIN and ISO dimensions should be checked by size. |
| Hexagon high nut / style 2 | — | ISO 4033 | — | Greater nut height than style 1. |
| Thin / jam nut | DIN 439 | ISO 4035 related | — | Confirm style, chamfer and height. |
| Nylon insert prevailing-torque nut | DIN 985 | ISO 10511 / ISO 7040 family | — | Style and height determine the applicable ISO. |
| Tall nylon insert prevailing-torque nut | DIN 982 | ISO 7040 / related family | — | Do not select by “nylock” name alone. |
| All-metal prevailing-torque nut | DIN 980 family | ISO 7042 / 7044 family | — | Temperature and reuse limitations depend on design. |
| Hex flange nut | DIN 6923 | ISO 4161 | — | Check flange diameter and serration requirement. |
| Cap / dome nut | DIN 1587 | ISO 1587 | — | Thread depth and closed-end clearance matter. |
| Wing nut | DIN 315 | DIN product standard | — | No direct ASTM mechanical equivalent. |
| Heavy hex nut, pressure service | — | — | ASTM A194 2H | Common companion to A193 B7; thread series must match. |
| Stainless pressure-service nut | — | — | ASTM A194 8 / 8M | Common companion to A193 B8 / B8M. |
| Structural carbon/alloy nut | — | — | ASTM A563 | Grade pairing depends on structural bolt system. |
| Plain washer, normal series | DIN 125 A | ISO 7089 | — | Normal-series flat washer. |
| Chamfered plain washer | DIN 125 B | ISO 7090 | — | Chamfered form; verify outside diameter. |
| Large-series plain washer | DIN 9021 | ISO 7093-1 | — | Larger outside diameter than normal series. |
| Small-series plain washer | DIN 433 | ISO 7092 | — | Smaller outside diameter; used where space is restricted. |
| Spring lock washer | DIN 127 | No simple current ISO replacement | IS 3063 / IS 6735 depending section | Specify section/form instead of assuming equivalence. |
| Socket-screw spring washer | DIN 7980 | No simple current ISO replacement | — | Legacy spring washer form. |
| Hardened structural washer | — | — | ASTM F436 / F436M | Part of high-strength structural bolting systems. |
| Flat-section spring washer | — | — | IS 3063 | Indian standard rectangular/flat-section spring lock washer. |
| Square-section spring washer | — | — | IS 6735 | Indian standard square-section spring washer. |
| Threaded rod — legacy | DIN 975 | DIN 976-1 commonly used now | — | State material grade and thread tolerance separately. |
| Threaded stud / rod | DIN 976-1 | DIN 976-1 | — | Covers metric threaded studs/rods; material requirement is separate. |
| Pressure-service alloy stud | — | — | ASTM A193 B7 | Common Cr-Mo alloy bolting grade. |
| Stainless pressure-service stud | — | — | ASTM A193 B8 / B8M | B8 ~ 304 family, B8M ~ 316 family; class/condition matters. |
| High-temperature alloy stud | — | — | ASTM A193 B16 | Temperature/service requirement must be verified. |
| Low-temperature stud | — | — | ASTM A320 L7 / L7M | Impact/test requirements depend on grade and service. |
| Anchor-bolt material | — | — | ASTM F1554 Gr 36 / 55 / 105 | Material grade does not define anchor geometry. |
| Structural heavy-hex / TC bolt grade family | — | — | ASTM F3125 A325 / A490 | Bolt, nut, washer and installation system must be treated together. |
| Non-preloaded structural assemblies | — | EN 15048 | — | CE/EN system; verify assembly and execution requirements. |
| Preloaded structural assemblies | — | EN 14399 family | — | System includes matched components and installation requirements. |
| Indian high-strength structural bolt | — | — | IS 3757 | Use with specified matching nut/washer standards and installation practice. |
| Indian high-strength structural nut | — | — | IS 6623 | Matching nut reference for structural bolt assemblies. |
| Indian hardened structural washer | — | — | IS 6649 | Hardened washer reference for high-strength structural assemblies. |
| Indian HSFG installation practice | — | — | IS 4000 | Code/practice reference; not a bolt dimensional standard. |
| Metric bolt mechanical properties | — | ISO 898-1 | IS 1367 Part 3 related Indian adoption | Property class 4.6 / 5.6 / 8.8 / 10.9 / 12.9 etc. |
| Metric nut mechanical properties | — | ISO 898-2 | IS 1367 related | Nut class must be appropriate for bolt property class. |
| Stainless bolt mechanical properties | — | ISO 3506-1 | — | A2/A4 property class system differs from carbon-steel 8.8/10.9. |
| Stainless nut mechanical properties | — | ISO 3506-2 | — | Match stainless grade/property class and service environment. |
| SAE bolt grades | — | — | SAE J429 | Grade 2 / 5 / 8 marking and strength system. |
| Metric general-purpose thread series | — | ISO 261 / ISO 262 | — | Defines preferred metric diameter/pitch combinations. |
| Metric thread tolerances | — | ISO 965 family | — | Tolerance class such as 6g/6H affects actual limits. |
| Unified inch threads | — | — | ASME B1.1 | UNC, UNF and UN series dimensions/tolerances. |
| Metric screw threads — ASME | — | — | ASME B1.13M | Metric M-profile thread standard used in some American specifications. |
| 8UN thread series | — | — | ASME B1.1 | Common large-diameter pressure-service stud thread series. |
| Hot-dip galvanized fabricated iron/steel | — | ISO 1461 | — | General HDG coating standard; fastener-specific requirements may also apply. |
| HDG coating on fasteners | — | — | ASTM F2329 / F2329M | Fastener-specific HDG reference including thread considerations. |
| HDG zinc on hardware | — | — | ASTM A153 / A153M | Hardware coating specification used on many project items. |
| Electroplated coating on fasteners | — | ISO 4042 | ASTM F1941 / F1941M related US system | Hydrogen embrittlement controls are critical for high-strength fasteners. |
| Non-electrolytic zinc-flake coatings | — | ISO 10683 | — | Low-thickness coating family often used on high-strength fasteners. |
| Atmospheric corrosivity categories | — | ISO 9223 | — | C1 to CX environmental classification framework. |
| Protective coating environment terminology | — | ISO 12944 family | — | Primarily paint/coating systems; useful for project exposure language. |
| Fastener acceptance inspection | — | ISO 3269 | — | Acceptance inspection reference; project plans may add sampling/ITP requirements. |
| Inspection certificate 3.1 | — | EN 10204 3.1 | — | Manufacturer inspection representative validates specific inspection results. |
| Inspection certificate 3.2 | — | EN 10204 3.2 | — | Includes independent purchaser/third-party validation as defined by the standard. |
| Certificate of conformity | Project / purchaser format | — | — | Declaration of compliance is not the same as an MTC/MTR with test values. |
Substitution rule: this table helps identify related standards. It does not authorize substitution. Dimensions, material chemistry, mechanical properties, coating, thread class, testing and assembly requirements must all be checked against the current governing standard and project specification.