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Hex Bolts

Hex Head and Heavy Hex Head in Full and Partial Threading

Standards:-

  1. ASTM/ASME/BS/DIN/BS EN ISO /JIS

Material:-

  1. Mild Steel, Carbon Steel, Alloy Steel & Stainless Steel.

Size Range:-

  1. M6 to M64 in metric series
  2. ¼” to 2½” in imperial
  3. Bigger sizes can be manufactured as per order.

Threads:-

  1. UNC, 8UN, UNF, Metric Coarse and Metric Fine

Ordering Information:-

  1. Dimensions – Size Dia and Length.
  2. Standards and Grade
  3. Finish (Black, GI, Yellow, HDG, Cadmium, Nickel, PTFE etc)
  4. Nut and washer quantity

DIN 93 HEXAGON HEAD BOLT

Material ASTM A193 Grade B7

Threads (d) M6 M8 M10 M12 M16 M20 M24 M27 M30 M33 M36 M39 M42 M45 M52
Across flat (s) Min 9.78 12.73 16.73 18.67 23.67 29.67 35.38 40.00 45.00 49.00 53.80 58.80 63.10 68.10 78.10
Max 10.00 13.00 17.00 19.00 24.00 30.00 36.00 41.00 46.00 50.00 55.00 60.00 65.00 70.00 80.00
Across corner(e) Min 11.05 14.38 18.90 21.10 26.75 33.53 39.98 45.20 50.85 55.37 60.79 66.44 71.30 76.95 88.25
Head Thickness(k) Min 3.85 5.15 6.22 7.32 9.82 12.28 14.78 16.65 18.28 20.58 22.08 24.58 25.58 27.58 32.50
Max 4.15 5.45 6.58 7.68 10.18 12.72 15.22 17.35 19.12 21.42 22.92 25.42 26.42 28.42 33.50
Unthreaded Length (a) Min 1.00 1.25 1.5 1.75 2.00 2.50 3.00 3.00 3.50 3.50 4.00 4.00 4.50 4.50 5.00
Max 3.00 4.00 4.50 5.30 6.00 7.50 9.00 9.00 10.50 10.50 12.00 12.00 13.50 13.50 5.00
Washer face Depth (c) Min 0.15 0.15 0.15 0.15 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.30 0.30 0.30 0.30
Max 0.50 0.60 0.60 0.60 0.80 0.80 0.80 0.80 0.80 0.80 0.80 1.00 1.00 1.00 1.00
Washer face
Dia (dw) 		Min 8.88 11.63 15.60 17.40 22.49 28.19 33.61 38.00 42.70 46.50 51.10 55.90 55.90 64.70 74.20
Head junction Radius(r) Min 0.25 0.40 0.40 0.60 0.60 0.80 0.80 1.00 1.00 1.00 1.00 1.00 1.20 1.20 1.60

DIN 933 HEXAGON HEAD BOLT

Material ASTM A320 Grade L7

A320 L7 HEX BOLTS
Threads (d) M6 M8 M10 M12 M16 M20 M24 M27 M30 M33 M36 M39 M42 M45 M52
Across flat (s) Min 9.78 12.73 16.73 18.7 23.67 29.67 35.38 40.00 45.00 49.00 53.80 58.80 63.10 68.10 78.10
Max 10.00 13.00 17.00 19.00 24.00 30.00 36.00 41.00 46.00 50.00 55.00 60.00 65.00 70.00 80.00
Across corner (e) Min 11.05 14.38 18.90 21.10 26.75 33.53 39.98 45.20 50.85 55.37 60.79 66.44 71.30 76.95 88.25
Head Thickness (k) Min 3.85 5.15 6.22 7.32 9.82 12.28 14.78 16.65 18.28 20.58 22.08 24.58 25.58 27.58 32.50
Max 4.15 5.45 6.58 7.68 10.18 12.72 15.22 17.35 19.12 21.42 22.92 25.42 26.42 28.42 33.50
Unthreaded Length (a) Min 1.00 1.25 1.5 1.75 2.00 2.50 3.00 3.00 3.50 3.50 4.00 4.00 4.50 4.50 5.00
Max 3.00 4.00 4.50 5.30 6.00 7.50 9.00 9.00 10.50 10.50 12.00 12.00 13.50 13.50 5.00
Washer face Depth (c) Min 0.15 0.15 0.15 0.15 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.30 0.30 0.30 0.30
Max 0.50 0.60 0.60 0.60 0.80 0.80 0.80 0.80 0.80 0.80 0.80 1.00 1.00 1.00 1.00
Washer face
Dia (dw) 		Min 8.88 11.63 15.60 17.40 22.49 28.19 33.61 38.00 42.70 46.50 51.10 55.90 55.90 64.70 74.20
Head Junction Radius (r) Min 0.25 0.40 0.40 0.60 0.60 0.80 0.80 1.00 1.00 1.00 1.00 1.00 1.20 1.20 1.60

ASTM A325M HEX BOLTS

A325M HEX BOLTS
Threads (d) M16 M20 M24 M27 M30 M33 M36
Across flat (s) Min 26.16 33.00 35.00 40.00 45.00 49.00 58.80
Max 27.00 34.00 36.00 41.00 46.00 50.00 60.00
Across corner(e) Min 29.56 37.29 39.55 45.20 50.85 55.37 66.44
Max 31.18 39.26 41.57 47.34 53.12 57.74 69.28
Head Thickness(k) Min 9.25 11.60 13.10 14.10 16.10 17.65 21.45
Max 10.75 13.40 14.90 15.90 17.90 19.75 23.55
Washer face Depth (c) Min 0.40 0.40 0.40 0.40 0.40 0.40 0.40
Max 0.80 0.80 0.80 0.80 0.80 0.80 0.80
Washer face Dia (dw) Min 24.90 31.40 33.30 38.00 42.80 46.50 55.90
Shank Diameter (d s) Min 15.30 19.16 21.16 23.16 26.16 29.16 35.00
Max 16.70 20.84 22.84 24.84 27.84 30.84 37.00
Head junction Radius(r) Min 0.60 0.80 0.80 1.00 1.20 1.20 1.50
Thread Length (b) 1<100 31 36 38 41 44 49 56
1>100 38 43 45 48 51 56 63

l = Overall length of the Bolt

DIN 933 HEX SCREWS (FULL THREAD)

Grades   4.6,   8.8,  10.9, 12.9,   A2 70,   A2 80,   A4 70  and  A4 80

Threads (d) M6 M8 M10 M12 M16 M20 M24 M27 M30 M33 M36 M39 M42 M45 M52
Across flat (s) Min 9.78 12.73 16.73 18.7 23.67 29.67 35.38 40.00 45.00 49.00 53.80 58.80 63.10 68.10 78.10
Max 10.00 13.00 17.00 19.00 24.00 30.00 36.00 41.00 46.00 50.00 55.00 60.00 65.00 70.00 80.00
Across corner(e) Min 11.05 14.38 18.90 21.10 26.75 33.53 39.98 45.20 50.85 55.37 60.79 66.44 71.30 76.95 88.25
Head Thickness(k) Min 3.85 5.15 6.22 7.32 9.82 12.28 14.78 16.65 18.28 20.58 22.08 24.58 25.58 27.58 32.50
Max 4.15 5.45 6.58 7.68 10.18 12.72 15.22 17.35 19.12 21.42 22.92 25.42 26.42 28.42 33.50
Unthreaded Length (a) Min 1.00 1.25 1.5 1.75 2.00 2.50 3.00 3.00 3.50 3.50 4.00 4.00 4.50 4.50 5.00
Max 3.00 4.00 4.50 5.30 6.00 7.50 9.00 9.00 10.50 10.50 12.00 12.00 13.50 13.50 5.00
Washer face Depth (c) Min 0.15 0.15 0.15 0.15 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.30 0.30 0.30 0.30
Max 0.50 0.60 0.60 0.60 0.80 0.80 0.80 0.80 0.80 0.80 0.80 1.00 1.00 1.00 1.00
Washer face
Dia (dw) 		Min 8.88 11.63 15.60 17.40 22.49 28.19 33.61 38.00 42.70 46.50 51.10 55.90 55.90 64.70 74.20
Head junction Radius(r) Min 0.25 0.40 0.40 0.60 0.60 0.80 0.80 1.00 1.00 1.00 1.00 1.00 1.20 1.20 1.60

DIN 931 HEX BOLTS (HALF THREAD)

Grades - 4.6, 8.8, A2 70, A2 80, A4 70 and A4 80

A320 L7 HEX BOLTS
Threads (d) M6 M8 M10 M12 M16 M20 M24 M27 M30 M33 M36 M39 M42 M45 M52
Across flat
 (s)		 Min 9.78 12.73 16.73 18.7 23.67 29.67 35.38 40.00 45.00 49.00 53.80 58.80 63.10 68.10 78.10
Max 10.00 13.00 17.00 19.00 24.00 30.00 36.00 41.00 46.00 50.00 55.00 60.00 65.00 70.00 80.00
Across corner
(e)		 Min 11.05 14.38 18.90 21.10 26.75 33.53 39.98 45.20 50.85 55.37 60.79 66.44 71.30 76.95 88.25
Head Thickness
(k)		 Min 3.85 5.15 6.22 7.32 9.82 12.28 14.78 16.65 18.28 20.58 22.08 24.58 25.58 27.58 32.50
Max 4.15 5.45 6.58 7.68 10.18 12.72 15.22 17.35 19.12 21.42 22.92 25.42 26.42 28.42 33.50
Washer face Depth (c) Min 0.15 0.15 0.15 0.15 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.30 0.30 0.30 0.30
Max 0.50 0.60 0.60 0.60 0.80 0.80 0.80 0.80 0.80 0.80 0.80 1.00 1.00 1.00 1.00
Washer face
Dia (dw)		 Min 0.15 0.15 0.15 0.15 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.30 0.30 0.30 0.30
Max 0.50 0.60 0.60 0.60 0.80 0.80 0.80 0.80 0.80 0.80 0.80 1.00 1.00 1.00 1.00
Shank Diameter (ds) Min 5.82 7.78 9.78 11.73 15.73 19.67 23.67 27.00 30.00 33.00 36.00 39.00 42.00 45.00 52.00
Max 6.00 8.00 10.00 12.00 16.00 20.00 24.00 26.48 29.48 32.38 35.38 38.38 41.38 44.38 51.26
Head junction Radius(r) Min 0.25 0.40 0.40 0.60 0.60 0.80 0.80 1.00 1.00 1.00 1.00 1.00 1.20 1.20 1.60
Thread Length
(b)		 1<125* 18 22 26 30 38 46 54 60 66            
125<200 24 28 32 36 44 52 60 66 72 78 84 90 96 102 116
1>200* 37 41 45 49 57 65 73 79 85 91 97 103 109 115 129

l = Overall length of the Bolt


DIN 603 STAINLESS STEEL CARRIAGE BOLT/MUSHROOM BOLT

Threads ( d )

M6

M8

M10

M12
dk

Min

15.45

19.35

23.35

29.35

Max

16.55

20.65

24.65

30.65

ds

Min

5.52

7.42

9.42

11.30

Max

6.00

8.00

10.00

12.00

f

Min

3.40

4.40

5.40

7.25

Max

4.60

5.60

6.60

8.75

k

Min

3.12

4.12

4.62

6.05

Max

3.88

4.88

5.38

6.95

r1

Approx

12.60

16.00

19.20

24.10

r2

Max

0.50

0.50

0.50

1.00

r3

Max

0.90

1.20

1.50

1.80

v

Min
Max

5.52
6.48

7.42
8.58

9.42
10.58

11.30
12.70

(b)

1<125*
125<200
1>200*

18
24
37

22
28
41

26
32
45

30
36
49

l = Overall length of the Bolt