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T-slot nuts, DIN 508: M4–M22 for 5–24 mm T-slots, neck width, base, height

What are the DIN 508 T-slot nut dimensions for a 10, 12, 14 or 18 mm T-slot? · Standard part · basis: OPAC's DIN 508 table (slot, a, e, h, k), cross-checked against Halder's DIN 508 catalogue (EH 23010) and fasten.it's DIN 508 table (06/2002)

Also called: din 508 t-slot nut dimensions, t-slot nut for 14 mm slot, m12 t-slot nut 22 mm, t nut 10 mm slot m8, din 508 m10 height, milling table t nut

Exact dimensions. Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part. Mating features

sizes
11 in table

Notes

  • Columns: thread d, T-slot size (to DIN 650), neck width a (slot minus 0.4), base e (length and width), total height h, base height k. Halder lists the same a, e, h, k for every shared size (e.g. 14 mm slot: a 13.6, e 22, h 16, k 8).
  • Files: square base plus a full-length neck, thread as a plain bore at the major diameter. Larger sizes (M24, M30) are in the standard but not drawn here.

T-slot nuts, DIN 508: M4–M22 for 5–24 mm T-slots, neck width, base… size chart

threadslotaehk
M454.696.53
M565.61084
M687.613106
M8109.615126
M101211.618147
M121413.622168
M141615.625189
M161817.6282010
M182019.6322412
M202221.6352814
M222423.6403216

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.

featureexactmates withfitfiles
necka = slot − 0.4: 4.6 (5 mm slot) to 23.6 (24 mm slot)T-slot width to DIN 650 (5 to 24 mm)designedall
basee × e × k: 9 × 9 × 3 (M4) to 40 × 40 × 16 (M22)T-slot undercut below the slotdesignedall
thread (plain bore at the major Ø)d: M4 to M22clamp stud or screwdesignedall

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

OPACDIN 508 nuts for T-slots: D, A, E, H, H1webPublisher's page; dimensions are facts
Halder (via MISUMI)Nuts for T-slots DIN 508, EH 23010: d, a, e, h, kwebPublisher's page; dimensions are facts
McMaster-CarrT-slot nuts, DIN 508 metric listingswebPublisher's page; dimensions are facts

Free files

★ Free files 11 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

din508-5mm-m4DIN 508 for 5 mm slot, M4: neck 4.6, base 9×9, h 6.5, k 3STEP · STL
din508-6mm-m5DIN 508 for 6 mm slot, M5: neck 5.6, base 10×10, h 8, k 4STEP · STL
din508-8mm-m6DIN 508 for 8 mm slot, M6: neck 7.6, base 13×13, h 10, k 6STEP · STL
din508-10mm-m8DIN 508 for 10 mm slot, M8: neck 9.6, base 15×15, h 12, k 6STEP · STL
din508-12mm-m10DIN 508 for 12 mm slot, M10: neck 11.6, base 18×18, h 14, k 7STEP · STL
din508-14mm-m12DIN 508 for 14 mm slot, M12: neck 13.6, base 22×22, h 16, k 8STEP · STL
din508-16mm-m14DIN 508 for 16 mm slot, M14: neck 15.6, base 25×25, h 18, k 9STEP · STL
din508-18mm-m16DIN 508 for 18 mm slot, M16: neck 17.6, base 28×28, h 20, k 10STEP · STL
din508-20mm-m18DIN 508 for 20 mm slot, M18: neck 19.6, base 32×32, h 24, k 12STEP · STL
din508-22mm-m20DIN 508 for 22 mm slot, M20: neck 21.6, base 35×35, h 28, k 14STEP · STL
din508-24mm-m22DIN 508 for 24 mm slot, M22: neck 23.6, base 40×40, h 32, k 16STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=t-slot-nuts-din-508

T-slot nuts, DIN 508: M4–M22 for 5–24 mm T-slots, neck width, base, height, isometric render of a generated part
Render of din508-14mm-m12 from the free STEP; not to scale.

Fits with

Questions

What are the dimensions of a T-slot nut for a 14 mm slot?

DIN 508 M12 for a 14 mm slot: 13.6 mm neck, 22 × 22 mm base, 16 mm overall, 8 mm base height.

Why is the neck 0.4 mm narrower than the slot?

DIN 508 sizes the neck a at slot − 0.4 so it slides in a DIN 650 T-slot.