DIN Standard

DIN – German national standards

DIN standards are a national standard system established by the German Institute for Standardization (DIN, Deutsches Institut für Normung). DIN standards are renowned for their rigor, uniformity, and high precision requirements, serving as an important reference for global mechanical manufacturing and industrial design. DIN represents Germany’s interests in international organizations such as the European Committee for Standardization (CEN) and the International Organization for Standardization (ISO).

DIN standards cover the dimensions, tolerances, materials, performance grades, and testing methods for products such as bolts, nuts, screws, and washers. Many DIN fastener models (e.g., DIN 933, DIN 125) have become internationally recognized industry codes. DIN is also a member of ISO and actively participates in the coordination and development of international standards.

Types of DIN Standards:

  • DIN Purely national German standards
  • DIN EN German adoption of a European Norm (harmonized with CEN)
  • DIN ISO German version of an ISO international standard
  • DIN EN ISO Harmonized versions of both EN and ISO standards adopted by Germany

DIN Fasteners Supplier/Manufacturer

51Fasteners offers a complete range of DIN standard bolts, machine screws, self-tapping and self-drilling screws, wood screws, studs, threaded rods, nuts, washers, industrial pins, and other fasteners and fixing components.

DIN fasteners are metric-sized fasteners based on German standards. These metric-sized DIN fasteners feature coarse threads, fine threads, and reverse threads, and are available in standard and custom sizes.

51Fasteners maintains a large inventory of DIN standard fasteners, including carbon steel grades 4.6, 5.6, 8.8, 10.9, and 12.9; stainless steel grades A2-70, A4-70, A4-80, 1.4541, 1.4571, 1.4305, and many other material grades and specifications.

DIN Fastener Standards

  • DIN 1 Taper Pins
  • DIN 7 Dowel Pins
  • DIN 39 Handles fixed
  • DIN 84 Slotted cheese head screws
  • DIN 85 Slotted pan head screws
  • DIN 93 Slices with a cloth (lock washers)
  • DIN 94 Split pins (ISO 1234)
  • DIN 95 Slotted oval head wood screws
  • DIN 96 Slotted Round Head Wood Screws
  • DIN 97 Slotted Flat Head Wood Screws
  • DIN 98 Handles, rotatable
  • DIN 99 Clamping Levers
  • DIN 124 Round Head Rivets
  • DIN 125 Plain Washers
  • DIN 125 A Plain washers Type A
  • DIN 125 B Plain washers, Type B
  • DIN 126 Plain washers
  • DIN 127 A Spring lock washers, Form A
  • DIN 127 B Spring lock washers, Form B
  • DIN 128 A Split Spring Washers, Curved, Form A
  • DIN 128 B Split Spring Washers, Waved Form B
  • DIN 137 A Spring washers curved, Form A
  • DIN 137 B Spring Wave Washers, Form B
  • DIN 186 T-Head bolts with square neck Head
  • DIN 188 T-Head Bolts With Double Nip
  • DIN 258 Taper pins with external thread
  • DIN 261 T-head bolts
  • DIN 302 Countersunk Head Rivets
  • DIN 314 Wing nuts with edged wings
  • DIN 315 A Wing nuts with rectangular wings
  • DIN 315 D Wing nuts with rounded wings
  • DIN 316 A Wing screws with rectangular wings
  • DIN 316 D Wing screws with rounded wings
  • DIN 319 Ball knobs
  • DIN 404 Slotted capstan screws
  • DIN 417 Slotted set screws and pins
  • DIN 427 Slotted headless screws with flat point
  • DIN 431 Hexagon pipe nuts
  • DIN 432 External tab
  • DIN 433 Washers for cheese head screws
  • DIN 434 Square taper washers for U-sections
  • DIN 435 Square taper washers for I-sections
  • DIN 436 Square Washers for wood constructions
  • DIN 438 Slotted set screws with cup point
  • DIN 439 Hexagon Thin Nuts (Jam Nuts)
  • DIN 439 A Hexagon thin nuts. unchamfered
  • DIN 439 B Hexagon thin nuts. chamfered
  • DIN 440 Washers for use in timber constructions
  • DIN 440 R Large size flat washers with round hole for use in timber constructions
  • DIN 440 V Large size flat washers with square hole for use in timber constructions
  • DIN 443 Sealing push-in caps (Cover Plates)
  • DIN 444 Eyebolts
  • DIN 444A Eye Bolts Type A
  • DIN 444B Eye Bolts Type B
  • DIN 462 Retaining plate with internal nose
  • DIN 463 Tab Washers With Long And Short Tab
  • DIN 464 Knurled thumb screws, high type
  • DIN 465 Knurled thumb screws
  • DIN 466 Knurled nuts, high type
  • DIN 467 Knurled nuts, low type
  • DIN 470 Sealing washer
  • DIN 471 Retaining rings for shafts
  • DIN 472 Retaining rings for bores
  • DIN 478 Square Head Bolts with collar
  • DIN 479 Square head bolts with short dog point
  • DIN 480 Square head bolts with collar and tip approach
  • DIN 508 Nuts for T-slots
  • DIN 525 Welding studs
  • DIN 529 Anchor Bolts (Stone Bolt)
  • DIN 529 A Anchor Bolts (Stone Bolt)
  • DIN 529 B Anchor Bolts (Stone Bolt)
  • DIN 529 C Anchor Bolts (Stone Bolt)
  • DIN 529 D Anchor Bolts (Stone Bolt)
  • DIN 529 E Anchor Bolts (Stone Bolt)
  • DIN 529 F Anchor Bolts (Stone Bolt)
  • DIN 529 G Anchor Bolts (Stone Bolt)
  • DIN 546 Slotted Round Nut
  • DIN 547 Two-hole nuts
  • DIN 548 Round nuts with set pin holes in side
  • DIN 561 A Hexagon head screws with small hexagon and dog point – steel
  • DIN 561 B Hexagon head screws with small hexagon and dog point – steel
  • DIN 564 A Hexagon set screws with cone point
  • DIN 564 B Ejector screw with hexagonal head and a tapered end
  • DIN 551 Slotted set screws
  • DIN 553 Slotted set screws with cone point
  • DIN 555 Hexagon Nuts, production class C
  • DIN 557 Square Nuts
  • DIN 558 Hexagonal screws, production class C
  • DIN 562 Square thin nuts
  • DIN 571 Hex wood screws
  • DIN 580 Lifting Eye Bolts (Collar eyebolts for lifting purposes)
  • DIN 582 Lifting Eye Nuts
  • DIN 601 Hexagon head bolts with nut, production class C
  • DIN 603 Mushroom head square neck bolts
  • DIN 604 Flat countersunk nib bolts with hexagon nut
  • DIN 605 Flat countersunk square neck bolts with hexagon nut
  • DIN 607 Half coach Bolts
  • DIN 608 Flat countersunk square neck bolts (with short square neck)
  • DIN 609 Hexagon fits bolts
  • DIN 610 Hexagon fit bolts with short threaded portion
  • DIN 653 Flat Knurled Thumb Screws
  • DIN 660 Round Head Rivets
  • DIN 661 Countersunk Head Rivets
  • DIN 662 Head rivets (rivets sheet)
  • DIN 674 Flat round head rivets
  • DIN 675 Countersunk Head Rivets
  • DIN 703 Collars heavy series
  • DIN 705 A Adjusting rings with set screw, Form A
  • DIN 705 B Adjusting rings with set screw, Form B
  • DIN 741 Wire rope clips
  • DIN 766 Round steel link chains
  • DIN 787 Bolts and screws for T-slots
  • DIN 792 Cylindrical countersunk screws
  • DIN 797 Special foundation bolts
  • DIN 798 Special foundation square nuts
  • DIN 835 Double End Studs
  • DIN 906 Locking screws with hexagon socket, taper thread
  • DIN 908 Screw plugs with collar and hexagon socket, cylindrical thread
  • DIN 909 Hexagon head pipe plug whit conical pipe thread
  • DIN 910 Screw plugs with collar and outer hexagon, cylindrical thread
  • DIN 911 Hex key
  • DIN 912 Hexagon socket Head Cap Screws
  • DIN 912 BL Sheet metal screws with hexagon socket
  • DIN 912 TX TORX socket Head Cap Screws
  • DIN 912 VG Hexagon socket Head Cap Screws full thread
  • DIN 913 Hexagon socket set screws with flat point
  • DIN 914 Hexagon socket set screws with cone point
  • DIN 915 Hexagon socket set screws with full dog point
  • DIN 916 Hexagon socket set screws with cup point
  • DIN 917 Hexagon Cup Nuts – Low Pattern
  • DIN 920 Slotted Pan Head Screws, Small Head
  • DIN 921 Slotted pan head screws with large head
  • DIN 922 Slotted pan head screws with small head and full dog point
  • DIN 923 Slotted pan head screws with shoulder
  • DIN 924 Slotted Raised Countersunk Head Screws with Dog Point
  • DIN 926 Slotted set screws with full point
  • DIN 927 Slotted Shoulder Screws
  • DIN 928 Square Weld Nuts
  • DIN 929 Hexagon weld nuts
  • DIN 931 Hexagon head bolts with shank
  • DIN 933 Hexagon head bolts with thread up to head
  • DIN 933 SZ Hexagon bolts with slot
  • DIN 934 Hexagon nuts with metric coarse and fine pitch thread
  • DIN 935 Hexagon slotted castle nuts
  • DIN 936 Hex nuts, low type
  • DIN 937 Castle nuts, low form
  • DIN 938 Studs with engagement length 1 x d
  • DIN 939 Studs, with engagement length 1.25 x d
  • DIN 940 Studs, with engagement length 2,5 x d
  • DIN 960 Partially Threaded Hex Cap Screw (Fine Thread)
  • DIN 961 Hex Cap Screws, Metric Fine Thread – Full Thread
  • DIN 963 Slotted countersunk head screws
  • DIN 964 Slotted raised countersunk oval head screws
  • DIN 965 Cross recessed countersunk flat head screws
  • DIN 965 TX Countersunk screws with TORX
  • DIN 966 Cross recessed raised countersunk head screws
  • DIN 967 Cross recessed pan head screws with collar
  • DIN 975 Threaded rods
  • DIN 975 TR Threaded rods, trapezoidal thread
  • DIN 976 Metric thread stud bolts
  • DIN 976-1 A Fully Threaded Stud Bolts with RL type thread end as in DIN EN ISO 4753
  • DIN 976-1 B Fully Threaded Stud Bolts with CH type thread end as in DIN EN ISO 4753
  • DIN 976 TR Threaded rods with trapezoidal thread
  • DIN 977 Hexagon weld nuts with flange
  • DIN 979 Hex thin slotted and castle nuts-coarse and fine pitch thread
  • DIN 980-980v Hexagon nuts with clamping part, all metal nut
  • DIN 981 Locknuts, KM Series
  • DIN 982 Prevailing torque nuts with nonmetalic insert
  • DIN 983 External retaining rings with lugs
  • DIN 984 Internal retaining rings with lugs
  • DIN 985 Prevailing torque type hexagon thin nuts with nonmetallic insert
  • DIN 986 Prevailing torque hexagon domed nuts with non-metallic insert
  • DIN 988 Shim rings and supporting rings
  • DIN 1052 Washers for wood constructions
  • DIN 1433 Clevis Pins without Head
  • DIN 1440 Medium type washers for pins
  • DIN 1441 Flat Washers For Clevis Pins, Coarse
  • DIN 1443 Clevis pins without head
  • DIN 1444 Clevis pins with head
  • DIN 1445 Clevis pins with head and stud end
  • DIN 1471 Grooved Pins, Full Length Taper-grooved
  • DIN 1472 Parallel Grooved Pins
  • DIN 1473 Cylindrical grooved pins
  • DIN 1474 Grooved pins full length parallel
  • DIN 1475 Grooved Pins, Third Length Centre-grooved
  • DIN 1476 Round Head Grooved Pins
  • DIN 1477 Countersunk Head Grooved Pins
  • DIN 1478 Turnbuckles, forged (open form)
  • DIN 1478 EE Turnbuckles with 2 Eyes
  • DIN 1478 EH Turnbuckles with Hook and Eye
  • DIN 1478 HH Turnbuckles, forged (open form)
  • DIN 1478 JJ Turnbuckles with 2 Jaws, forged (open form)
  • DIN 1478 SE Turnbuckles with 2 Stub Ends
  • DIN 1479 Hexagonal turnbuckle
  • DIN 1480 Turnbuckles, forged (open form)
  • DIN 1480 EE Turnbuckles with 2 Eyes
  • DIN 1480 EH Turnbuckles with Hook and Eye
  • DIN 1480 HH Turnbuckles, forged (open form)
  • DIN 1480 JJ Turnbuckles with 2 Jaws, forged (open form)
  • DIN 1480 PP Turnbuckles with plane ends, forged (open form)
  • DIN 1480 SE Turnbuckles with 2 Stub Ends
  • DIN 1481 Spring-Type Straight Pins (Roll Pins) – Heavy Type
  • DIN 1587 Hexagon domed cap nuts
  • DIN 1804 Slotted round nuts for hook spanners
  • DIN 1816 Round Nut with Set Pin Holes Inside
  • DIN 2093 Disc Spring Washer
  • DIN 2509 Double End Studs
  • DIN 2510 Reduced / Waisted Shank Stud Bolts, Hexagon Nuts and Sleeves for Bolted Connections in Petrochemical Industry
  • DIN 2510 Type K Reduced / Waisted Shank Stud Bolts with Short Threads
  • DIN 2510 Type KU Reduced / Waisted Shank Stud Bolts with Short Threads and Spacer
  • DIN 2510 Type L Reduced / Waisted Shank Stud Botls with Long Threads
  • DIN 2510 Type NF Hexagon Nuts for Reduced / Waisted Shank Stud Bolts
  • DIN 2510 Type Z Reduced / Waisted Shank Stud Bolts with Long Threads
  • DIN 2510 Type ZU Reduced / Waisted Shank Stud Bolts with Long Threads and Spacer
  • DIN 2510-7 Sleeves for use with Reduced / Waisted Shank Stud Bolts.
  • DIN 3017 Hose Clamps
  • DIN 3404 Button head grease nipples
  • DIN 3570 U-bolts
  • DIN 5406 Tab washers for nuts to DIN 981
  • DIN 5914 Sleeper Screws
  • DIN 6319 Spherical washers
  • DIN 6325 Dowel Pins
  • DIN 6330 Hexagon nuts height 1.5 xD
  • DIN 6331 Hexagon nuts with collar height 1.5 x D
  • DIN 6332 Grub screws with thrust point
  • DIN 6334 Hexagon Long Nuts – 3D
  • DIN 6335 D Cross handles Form D with through holes
  • DIN 6335 K Cross Handles form K with threaded bush
  • DIN 6336 D Star knobs Form D with through holes
  • DIN 6336 K Star knobs form K with threaded bush
  • DIN 6340 Washers for clamping devices
  • DIN 6796 Conical spring washer for bolted connections
  • DIN 6797 A Toothed lock washers, external form A
  • DIN 6797 J Toothed lock washers, internal Form J
  • DIN 6797 V Toothed lock washers, conical V
  • DIN 6798 A Serrated lock washers, Forma I – external
  • DIN 6798 J Serrated lock washers, Form J – internal
  • DIN 6798 V Serrated lock washers, V – conical
  • DIN 6799 Retaining washers for shafts
  • DIN 6885 A Parallel keys high type
  • DIN 6887 Taper keys gip head
  • DIN 6888 Disc springs
  • DIN 6899 Thimbles
  • DIN 6912 Cap screws thin cylindrical head
  • DIN 6913 Spring Lock Washers With Safety Rings
  • DIN 6914 High-strength structural hex bolts
  • DIN 6915 Hexagon nuts with large widths across flats for high-voltage connections
  • DIN 6916 Slices, round, for HV connections
  • DIN 6917 Square taper washers for I-sections
  • DIN 6918 Square taper washers for U-sections
  • DIN 6921 Hexagon flange bolts metric
  • DIN 6923 Hexagon nuts with flange
  • DIN 6924 Hexagon nuts with Klamm part, non-metallic insert
  • DIN 6925 Hexagon nuts with clamping part all-metal nuts,
  • DIN 6926 Hexagon flange lock nuts
  • DIN 6927 Nut self-locking with Collar
  • DIN 7337 Break mandrel blind rivets
  • DIN 7338 Rivets for brake linings and clutch linings
  • DIN 7340 Tubular rivets
  • DIN 7343 Spiral-span pins, rule execution
  • DIN 7344 Spiral dowel pins, heavy duty
  • DIN 7346 Dowel pins, light version
  • DIN 7349 Washers for bolts with heavy clamping sleeves
  • DIN 7500 C Thread forming screws with cross recessed raised cheese head Z
  • DIN 7500 CTX Thread forming screws with hexagon head
  • DIN 7500 D Thread forming screws for hexagon head
  • DIN 7500 E Thread forming screws with hexagon head
  • DIN 7500 M Thread forming screws for metric ISO threads
  • DIN 7500 MTX Thread forming screws with hexagon head
  • DIN 7504 K Hex Head Flange Self Drilling Screws
  • DIN 7504 N Cross Recessed Pan Head Drilling Screws
  • DIN 7504 NSQ Self Drilling screws
  • DIN 7504 NTX Self Drilling screws
  • DIN 7504 O Self Drilling screws
  • DIN 7504 OTX Self Drilling screws
  • DIN 7504 P Cross Recessed Countersunk Head Self Drilling screws
  • DIN 7504 PSQ Self Drilling screws
  • DIN 7504 PTX Self Drilling screws
  • DIN 7513 A Hex tapping screws A = with hexagon head
  • DIN 7513 B Hex tapping screws B = with cylinder head and slot
  • DIN 7513 F Hex tapping screws countersunk head with slot F
  • DIN 7513 G Hex tapping screws G = with Raised and slot
  • DIN 7516 A Self-Tapping Thread Cutting Screw with Phillips, Form A
  • DIN 7516 ATX Self-Tapping Thread Cutting Screw with TORX, Form A
  • DIN 7516 D Self-Tapping Thread Cutting Screw whit flat head with Phillips, Form D
  • DIN 7516 DTX Self-Tapping Thread Cutting Screw whit flat head with TORX, Form D
  • DIN 7516 E Self-tapping screws raised countersunk Phillips, Form E
  • DIN 7516 ETX Self-tapping screws raised countersunk TORX, Form E
  • DIN 7603 A Sealing rings
  • DIN 7604 A Hexagon head pipe plug, cylindrical thread
  • DIN 7604 C Screw plugs with collar and external hexagon
  • DIN 7643 Hollow screws
  • DIN 7965 Slotted inserts
  • DIN 7967 Self-locking counter nuts PAL
  • DIN 7968 Hexagon fit bolts with hexagon nut for steel structures
  • DIN 7969 Slotted countersunk head bolts for structural steel bolting
  • DIN 7971 Tapping screws, slotted pan head
  • DIN 7972 Slotted countersunk head tapping screws
  • DIN 7973 Slotted raised countersunk head tapping screws
  • DIN 7976 Hexagon head self tapping screws
  • DIN 7977 Taper pins with external thread
  • DIN 7978 Taper pins with internal thread
  • DIN 7979 Parallel Pins with Internal Thread
  • DIN 7980 Spring lock washer for cylinder head screws
  • DIN 7981 C Pan head tapping screws with cross recess H and Z, Form C
  • DIN 7981 CTX Pan head tapping screws with TORX, Form C
  • DIN 7981 F Pan head tapping screws with cross recess H and Z, Form F
  • DIN 7982 C Cross recessed countersunk head tapping screws, Form C
  • DIN 7982 CTX Countersunk head tapping screws with TORX, Form C
  • DIN 7982 F Cross recessed countersunk head tapping screws, Form F
  • DIN 7983 C Countersunk (Flat) Head Tapping Screws with Cross Recess, Form C
  • DIN 7983 F Countersunk (Flat) Head Tapping Screws with Cross Recess, Form F
  • DIN 7983 TX Countersunk (Flat) Head Tapping Screws with TORX, Form C
  • DIN 7984 Hexagon socket thin head cap screws
  • DIN 7984 TX Thin head cap screws with TORX
  • DIN 7985 Cross recessed raised cheese head screws
  • DIN 7985 PZ Fillister head Screw with PZ cross slot
  • DIN 7985 TX Lens screws with TORX
  • DIN 7989 Washers for steel constructions
  • DIN 7990 Hexagon head bolts for steel structures
  • DIN 7991 Hexagon socket countersunk head cap screws
  • DIN 7991 TX Hexagon socket countersunk head cap screws
  • DIN 7992 T-head bolts with large head
  • DIN 7993 A Snap rings
  • DIN 7993 B Internal Snap Ring
  • DIN 7995 Cross recessed countersunk (oval) head
  • DIN 7996 Cross recessed pan head wood screws
  • DIN 7997 Cross recessed countersunk (flat) head
  • DIN 7999 High strength hex. fit bolts with large width across flats for stuctural steel bolting – nuts and washers
  • DIN 8140 A Threaded inserts, type A standard thread
  • DIN 8140 B Threaded Inserts, Self-Locking Type B
  • DIN 9021 Plain washer, outer diameter about 3 d
  • DIN 11014 Plough bolts with 2 nibs with nuts
  • DIN 11024 D Spring cotters of a Bolts
  • DIN 11024 E Spring cotters of a Bolts
  • DIN 15237 Plate screws
  • DIN 15315 Rope Sockets
  • DIN 22424 A Triangle head bolts
  • DIN 22424 B Triangle head bolts
  • DIN 22424 C Triangle head bolts
  • DIN 25193 Screw clamp with a large rounded head
  • DIN 28129 Clamp nuts for covers
  • DIN 32501 Screw with metric thread
  • DIN 43148 Rope suspensions with wedge sockets
  • DIN 70613 Hexagon bolts with small widths across flats
  • DIN 70614 Hexagon bolts with small widths across flats full thread
  • DIN 70852 Locknuts
  • DIN 70952 Tab washers for slotted nut to DIN 70852
  • DIN 71412 A Taper type grease nipples, short m. Allen, A = cone head straight / axial
  • DIN 71412 B Taper type grease nipples, short, B = cone-head, 45 degree angled
  • DIN 71412 C Angled taper type lubrication nipples, short, C = cone-head, 90 degree
  • DIN 71752 Fork joint
  • DIN 71802 Angled ball joints
  • DIN 74361 A Spherical collar nuts form A
  • DIN 74361 B Flat collar nuts form B
  • DIN 74361 C Taper flange nuts, lock washers C (lock washers)
  • DIN 80705 Thin nuts with fine pitch thread and with small widths across flats

Other Standards