dM1.6
P · mm0.35
aMax1.05
cMin0.1
More dimensions
cMax0.25
daMax2
bearingDiameterMin2.4
e · mm3.41
k · mm1.1
kMin0.98
headHeightMax1.22
kPrimeMin0.7
rMin0.1
s · mm3.2
sMin3.02
Execution standard reference
DIN 933 Hex Head Screw — Fully Threaded
M1.6 to M52, hexagon head screws threaded up to the head, product grades A and B.
boltEdition: 1987-09Historical standardDimensions available
This designation remains common in purchasing. Use the dimensions on this page for this exact standard; a related current standard is not automatically interchangeable.
Dimensional reference
Shows dimensions already stored in the standard library. Missing values are not filled automatically.
DIN 933 dimensional reference
Hex Head Screw — Fully Threaded
| dThread size | PPitch · mm | aMaxa · Thread Runout (max) (mm) | cMinc · Washer Height (min) (mm) | cMaxc · Dimension c (max) (mm) | daMaxda · Underhead Diameter (max) (mm) | bearingDiameterMindw · Bearing Diameter (min) (mm) | eAcross corners · mm | kHead height · mm | kMink · Head Height (min) (mm) | headHeightMaxk · Head Height (max) (mm) | kPrimeMink' · Minimum Wrenching Height (mm) | rMinr · Radius (min) (mm) | sAcross flats · mm | sMins · Width Across Flats (min) (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M1.6 | 0.35 | 1.05 | 0.1 | 0.25 | 2 | 2.4 | 3.41 | 1.1 | 0.98 | 1.22 | 0.7 | 0.1 | 3.2 | 3.02 |
| M2 | 0.4 | 1.2 | 0.1 | 0.25 | 2.6 | 3.2 | 4.32 | 1.4 | 1.28 | 1.52 | 0.9 | 0.1 | 4 | 3.82 |
| M2.5 | 0.45 | 1.35 | 0.1 | 0.25 | 3.1 | 4.1 | 5.45 | 1.7 | 1.58 | 1.82 | 1.1 | 0.1 | 5 | 4.82 |
| M3 | 0.5 | 1.5 | 0.15 | 0.4 | 3.6 | 4.6 | 6.01 | 2 | 1.88 | 2.12 | 1.3 | 0.1 | 5.5 | 5.32 |
| M3.5 | 0.6 | 1.8 | 0.15 | 0.4 | 4.1 | 5.1 | 6.58 | 2.4 | 2.28 | 2.52 | 1.6 | 0.1 | 6 | 5.82 |
| M4 | 0.7 | 2.1 | 0.15 | 0.4 | 4.7 | 5.9 | 7.66 | 2.8 | 2.68 | 2.92 | 1.9 | 0.2 | 7 | 6.78 |
| M5 | 0.8 | 2.4 | 0.15 | 0.5 | 5.7 | 6.9 | 8.79 | 3.5 | 3.35 | 3.65 | 2.28 | 0.2 | 8 | 7.78 |
| M6 | 1 | 3 | 0.15 | 0.5 | 6.8 | 8.9 | 11.05 | 4 | 3.85 | 4.15 | 2.63 | 0.25 | 10 | 9.78 |
| M7 | 1 | 3 | 0.15 | 0.5 | 7.8 | 9.6 | 12.12 | 4.8 | 4.65 | 4.95 | 3.19 | 0.25 | 11 | 10.73 |
| M8 | 1.25 | 3.75 | 0.15 | 0.6 | 9.2 | 11.6 | 14.38 | 5.3 | 5.15 | 5.45 | 3.54 | 0.4 | 13 | 12.73 |
| M10 | 1.5 | 4.5 | 0.15 | 0.6 | 11.2 | 15.6 | 18.9 | 6.4 | 6.22 | 6.56 | 4.28 | 0.4 | 17 | 16.73 |
| M12 | 1.75 | 5.25 | 0.15 | 0.6 | 13.7 | 17.4 | 21.1 | 7.5 | 7.32 | 7.68 | 5.05 | 0.6 | 19 | 18.67 |
| M14 | 2 | 6 | 0.15 | 0.6 | 15.7 | 20.5 | 24.49 | 8.8 | 8.62 | 8.98 | 5.96 | 0.6 | 22 | 21.67 |
| M16 | 2 | 6 | 0.2 | 0.8 | 17.7 | 22.5 | 26.75 | 10 | 9.82 | 10.18 | 6.8 | 0.6 | 24 | 23.67 |
| M18 | 2.5 | 7.5 | 0.2 | 0.8 | 20.2 | 25.3 | 30.14 | 11.5 | 11.28 | 11.72 | 7.8 | 0.6 | 27 | 26.67 |
| M20 | 2.5 | 7.5 | 0.2 | 0.8 | 22.4 | 28.2 | 33.53 | 12.5 | 12.28 | 12.72 | 8.5 | 0.8 | 30 | 29.67 |
| M22 | 2.5 | 7.5 | 0.2 | 0.8 | 24.4 | 30 | 35.72 | 14 | 13.78 | 14.22 | 9.6 | 0.8 | 32 | 31.61 |
| M24 | 3 | 9 | 0.2 | 0.8 | 26.4 | 33.6 | 39.98 | 15 | 14.78 | 15.22 | 10.3 | 0.8 | 36 | 35.38 |
| M27 | 3 | 9 | 0.2 | 0.8 | 30.4 | 38 | 45.2 | 17 | 16.65 | 17.35 | 11.7 | 1 | 41 | 40 |
| M30 | 3.5 | 10.5 | 0.2 | 0.8 | 33.4 | 42.7 | 50.85 | 18.7 | 18.28 | 19.12 | 12.8 | 1 | 46 | 45 |
| M33 | 3.5 | 10.5 | 0.2 | 0.8 | 36.4 | 46.5 | 55.37 | 21 | 20.58 | 21.42 | 14.4 | 1 | 50 | 49 |
| M36 | 4 | 12 | 0.2 | 0.8 | 39.4 | 51.1 | 60.79 | 22.5 | 22.08 | 22.92 | 15.5 | 1 | 55 | 53.8 |
| M39 | 4 | 12 | 0.3 | 1 | 42.4 | 55.9 | 66.44 | 25 | 24.58 | 25.42 | 17.2 | 1 | 60 | 58.8 |
| M42 | 4.5 | 13.5 | 0.3 | 1 | 45.6 | 59.9 | 71.3 | 26 | 25.58 | 26.42 | 17.9 | 1.2 | 65 | 63.1 |
| M45 | 4.5 | 13.5 | 0.3 | 1 | 48.6 | 64.7 | 76.95 | 28 | 27.58 | 28.42 | 19.3 | 1.2 | 70 | 68.1 |
| M48 | 5 | 15 | 0.3 | 1 | 52.6 | 69.4 | 82.6 | 30 | 29.58 | 30.42 | 20.9 | 1.6 | 75 | 73.1 |
| M52 | 5 | 15 | 0.3 | 1 | 56.6 | 74.2 | 88.25 | 33 | 32.5 | 33.5 | 22.8 | 1.6 | 80 | 78.1 |
dM2
P · mm0.4
aMax1.2
cMin0.1
More dimensions
cMax0.25
daMax2.6
bearingDiameterMin3.2
e · mm4.32
k · mm1.4
kMin1.28
headHeightMax1.52
kPrimeMin0.9
rMin0.1
s · mm4
sMin3.82
dM2.5
P · mm0.45
aMax1.35
cMin0.1
More dimensions
cMax0.25
daMax3.1
bearingDiameterMin4.1
e · mm5.45
k · mm1.7
kMin1.58
headHeightMax1.82
kPrimeMin1.1
rMin0.1
s · mm5
sMin4.82
dM3
P · mm0.5
aMax1.5
cMin0.15
More dimensions
cMax0.4
daMax3.6
bearingDiameterMin4.6
e · mm6.01
k · mm2
kMin1.88
headHeightMax2.12
kPrimeMin1.3
rMin0.1
s · mm5.5
sMin5.32
dM3.5
P · mm0.6
aMax1.8
cMin0.15
More dimensions
cMax0.4
daMax4.1
bearingDiameterMin5.1
e · mm6.58
k · mm2.4
kMin2.28
headHeightMax2.52
kPrimeMin1.6
rMin0.1
s · mm6
sMin5.82
dM4
P · mm0.7
aMax2.1
cMin0.15
More dimensions
cMax0.4
daMax4.7
bearingDiameterMin5.9
e · mm7.66
k · mm2.8
kMin2.68
headHeightMax2.92
kPrimeMin1.9
rMin0.2
s · mm7
sMin6.78
Verified differences from related standards
Only dimensions present in complete, verified standard data are listed. Related standards are not automatically interchangeable.
| Size | Dimension | Compared values |
|---|---|---|
| M10 | e | DIN 933 18.9 / ISO 4017 17.77 |
| M10 | s | DIN 933 17 / ISO 4017 16 |
| M12 | e | DIN 933 21.1 / ISO 4017 20.03 |
| M12 | s | DIN 933 19 / ISO 4017 18 |
| M14 | e | DIN 933 24.49 / ISO 4017 23.36 |
| M14 | s | DIN 933 22 / ISO 4017 21 |
| M22 | e | DIN 933 35.72 / ISO 4017 37.72 |
| M22 | s | DIN 933 32 / ISO 4017 34 |
| M10 | e | DIN 933 18.9 / GB/T 5783 17.77 |
| M10 | s | DIN 933 17 / GB/T 5783 16 |
| M12 | e | DIN 933 21.1 / GB/T 5783 20.03 |
| M12 | s | DIN 933 19 / GB/T 5783 18 |
| M14 | e | DIN 933 24.49 / GB/T 5783 23.36 |
| M14 | s | DIN 933 22 / GB/T 5783 21 |
| M22 | e | DIN 933 35.72 / GB/T 5783 37.72 |
| M22 | s | DIN 933 32 / GB/T 5783 34 |
DIN 933:1987 historical profile, now backed by its own complete original. Grade-specific limits are resolved from diameter and nominal length; do not substitute ISO 4017 dimensions without buyer approval.
Quote against the correct standard.
Include sizes, material, finish, quantity and required documents.