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Technical Resources - Fasteners

AS1110.1 High Tensile Metric Hex Bolts

Compliant with DIN 931/IS0 4014 Standards for Partially Threaded Hexagon Head Bolts
Note* This table is interactive. Need a specific size? Click on any row in the table to filter according to your needs.
All measurements are provided in millimetres (mm)
Size Spanner (mm) Pitch Width Across Flats (S) Head Height (K) Thread Length (B)
Coarse Fine Min Max Min Max L ≤ 125 125 < L ≤ 200 L > 200
M6 16 1.00p N/A 9.78 10.00 3.85 4.15 18 24 N/A
M8 18 1.25p 1.00p 12.73 13.00 5.15 5.45 22 28 41
M10 21 1.50p 1.25p 16.73 17.00 6.22 6.58 26 32 45
M12 24 1.75p 1.25p / 1.50p 18.67 19.00 7.32 7.68 30 36 49
M14 27 2.00p 1.50p 21.67 22.00 8.62 8.98 34 40 53
M16 30 2.00p 1.50p 23.67 24.00 9.82 10.20 38 44 57
M18 34 2.50p 1.50p 26.67 27.00 11.28 11.70 42 48 61
M20 36 2.50p 1.50p / 2.00p 29.67 30.00 12.28 12.70 46 52 65
M22 41 2.50p 1.50p 31.61 32.00 13.78 14.20 50 56 69
M24 46 3.00p 2.00p 35.38 36.00 14.78 15.20 54 60 73
M27 50 3.00p 2.00p 40.00 41.00 16.65 17.40 60 66 79
M30 55 3.50p 2.00p 45.00 46.00 18.28 19.12 66 72 85
M33 65 3.50 N/A 49.00 50.00 20.58 21.42 72 78 91
M36 75 4.00p N/A 53.80 55.00 22.08 22.92 78 84 97
M39 85 4.00p N/A 58.80 60.00 24.58 25.42 84 90 103
M42 95 4.50p N/A 63.10 65.00 25.58 26.42 90 96 109
M48 95 5.00p N/A 73.10 75.00 29.58 30.42 102 108 121
M56 85 5.50p N/A 82.80 85.00 34.50 35.50 N/A 124 137

AS1110.2 High Tensile Metric Hex Set Screws

Compliant with DIN 933/IS0 4017 Standards for Fully Threaded Hexagon Head Bolts
Note* This table is interactive. Need a specific size? Click on any row in the table to filter according to your needs.
All measurements are provided in millimetres (mm)
Size Spanner (mm) Pitch Width Across Flats (S) Head Height (K)
Coarse Fine Min Max Min Max
M6 16 1.00p N/A 9.78 10.00 3.85 4.15
M8 18 1.25p 1.00p 12.73 13.00 5.15 5.45
M10 21 1.50p 1.25p 16.73 16.00 (ISO) / 17.00 (DIN) 6.22 6.58
M12 24 1.75p 1.25p / 1.50p 18.67 18.00 (ISO) / 19.00 (DIN) 7.32 7.68
M14 27 2.00p 1.50p 21.67 21.00 (ISO) / 22.00 (DIN) 8.62 8.98
M16 30 2.00p 1.50p 23.67 24.00 9.82 10.20
M18 34 2.50p 1.50p 26.67 27.00 11.28 11.70
M20 36 2.50p 1.50p / 2.00p 29.67 30.00 12.28 12.70
M22 41 2.50p 1.50p 31.61 34.00 (ISO) / 32.00 (DIN) 13.78 14.20
M24 46 3.00p 2.00p 35.38 36.00 14.78 15.20
M27 50 3.00p 2.00p 40.00 41.00 16.65 17.40
M30 55 3.50p 2.00p 45.00 46.00 18.28 19.12
M36 75 4.00p N/A 53.80 55.00 22.08 22.92
M42 95 4.50p N/A 63.10 65.00 25.58 26.42
M48 95 5.00p N/A 73.10 75.00 29.58 30.42
M56 85 5.50p N/A 82.80 85.00 34.50 35.50

AS2465 High Tensile Imperial Hex Bolts

Specifications for UNC and UNF High Tensile Partially Threaded Hexagon Head Bolts
Note*: This table is interactive. Need a specific size? Click on any row in the table to filter according to your needs.
All measurements are provided in inches.
Thread Size Thread Pitch (TPI) Major Diameter (in) Head Height (in) Across Flats (in) Across Corners (in) Thread Length (in)
UNC UNF Min Max Min Max Min Max Min Max L > 6 L ≤ 6
1/4" 20 28 0.2450 0.2500 0.163 0.150 0.428 0.438 0.488 0.505 1.000 0.750
5/16" 18 24 0.3065 0.3125 0.195 0.211 0.489 0.500 0.557 0.577 1.125 0.875
3/8" 16 24 0.3690 0.3750 0.226 0.243 0.551 0.562 0.628 0.650 1.250 1.000
7/16" 14 20 0.4305 0.4375 0.272 0.291 0.612 0.625 0.698 0.722 1.375 1.125
1/2" 13 20 0.4930 0.5000 0.302 0.323 0.736 0.750 0.840 0.866 1.500 1.250
9/16" 12 18 0.5545 0.5625 0.348 0.371 0.798 0.812 0.910 0.938 1.625 1.375
5/8" 11 18 0.6170 0.6250 0.378 0.403 0.922 0.938 1.051 1.083 1.750 1.500
3/4" 10 16 0.7410 0.7500 0.455 0.483 1.100 1.125 1.254 1.299 2.000 1.750
7/8" 9 14 0.8660 0.8750 0.531 0.563 1.285 1.312 1.465 1.516 2.250 2.000
1" 8 12 0.9900 1.0000 0.591 0.627 1.469 1.500 1.675 1.732 2.500 2.250
1-1/8" 7 12 1.1140 1.1250 0.658 0.718 1.631 1.688 1.859 1.949 2.750 2.500
1-1/4" 7 12 1.2390 1.2500 0.749 0.813 1.812 1.875 2.066 2.165 3.000 2.750
1-3/8" 6 12 1.3630 1.3750 0.810 0.878 1.994 2.062 2.273 2.382 3.250 3.000
1-1/2" 6 12 1.4880 1.5000 0.902 0.974 2.175 2.250 2.480 2.598 3.500 3.250
1-3/4" 5 12 1.7450 1.7500 1.036 1.100 2.400 2.500 2.800 2.900 3.750 3.500
2" 4.5 12 1.9900 2.0000 1.155 1.224 2.750 2.875 3.100 3.200 4.000 3.750

AS2465 High Tensile Imperial Hex Set Screws

Specifications for UNC and UNF Fully Threaded High Tensile Hexagon Head Bolts
Note*: This table is interactive. Need a specific size? Click on any row in the table to filter according to your needs.
All measurements are provided in inches.
Thread Size Thread Pitch (TPI) Major Diameter (in) Head Height (in) Across Flats (in) Across Corners (in)
UNC UNF Min Max Min Max Min Max Min Max
1/4" 20 28 0.2450 0.2500 0.163 0.150 0.428 0.438 0.488 0.505
5/16" 18 24 0.3065 0.3125 0.195 0.211 0.489 0.500 0.557 0.577
3/8" 16 24 0.3690 0.3750 0.226 0.243 0.551 0.562 0.628 0.650
7/16" 14 20 0.4305 0.4375 0.272 0.291 0.612 0.625 0.698 0.722
1/2" 13 20 0.4930 0.5000 0.302 0.323 0.736 0.750 0.840 0.866
9/16" 12 18 0.5545 0.5625 0.348 0.371 0.798 0.812 0.910 0.938
5/8" 11 18 0.6170 0.6250 0.378 0.403 0.922 0.938 1.051 1.083
3/4" 10 16 0.7410 0.7500 0.455 0.483 1.100 1.125 1.254 1.299
7/8" 9 14 0.8660 0.8750 0.531 0.563 1.285 1.312 1.465 1.516
1" 8 12 0.9900 1.0000 0.591 0.627 1.469 1.500 1.675 1.732
1-1/8" 7 12 1.1140 1.1250 0.658 0.718 1.631 1.688 1.859 1.949
1-1/4" 7 12 1.2390 1.2500 0.749 0.813 1.812 1.875 2.066 2.165
1-3/8" 6 12 1.3630 1.3750 0.810 0.878 1.994 2.062 2.273 2.382
1-1/2" 6 12 1.4880 1.5000 0.902 0.974 2.175 2.250 2.480 2.598
1-3/4" 5 12 1.7450 1.7500 1.036 1.100 2.400 2.500 2.800 2.900
2" 4.5 12 1.9900 2.0000 1.155 1.224 2.750 2.875 3.100 3.200

AS1112 Metric Hexagon Nuts

Compliant with AS1112/IS0 4032 Standards for Metric Hexagon Nuts
Note* This table is interactive. Need a specific size? Click on any row in the table to filter according to your needs.
All measurements are provided in millimetres (mm)
Size Pitch Width Across Corners (min) Height (K) Width Across Flats (S)
Coarse Fine Min Max Min Max
M1.6 0.35p N/A 3.41 1.05 1.30 3.02 3.20
M2 0.40p N/A 4.32 1.35 1.60 3.82 4.00
M2.5 0.45p N/A 5.45 1.75 2.00 4.82 5.00
M3 0.50p N/A 6.01 2.15 2.40 5.32 5.50
M4 0.70p N/A 7.66 2.90 3.20 6.78 7.00
M5 0.80p N/A 8.79 4.40 4.70 7.78 8.00
M6 1.00p N/A 11.05 4.90 5.20 9.78 10.00
M8 1.25p 1.00p 14.38 6.44 6.80 12.73 13.00
M10 1.50p 1.25p 17.77 8.04 8.40 15.73 16.00
M12 1.75p 1.25p / 1.50p 20.03 10.37 10.80 17.73 18.00
M14 2.00p 1.50p 23.36 12.10 12.80 20.67 21.00
M16 2.00p 1.50p 26.75 14.10 14.80 23.67 24.00
M18 2.50p 1.50p 29.56 15.10 15.80 26.16 27.00
M20 2.50p 1.50p 32.95 16.90 18.00 29.16 30.00
M22 2.50p 1.50p 37.29 18.10 19.40 33.00 34.00
M24 3.00p 2.00p / 1.50p 39.55 20.20 21.50 35.00 36.00
M27 3.00p N/A 45.20 22.50 23.80 40.00 41.00
M30 3.50p N/A 50.85 24.30 25.60 45.00 46.00
M33 3.50p N/A 55.37 27.40 28.70 49.00 50.00
M36 4.00p N/A 60.79 29.40 31.00 53.80 55.00
M42 4.50p N/A 71.30 32.40 34.00 63.10 65.00
M48 5.00p N/A 82.60 36.40 38.00 73.10 75.00
M56 5.50p N/A 93.56 43.40 45.00 82.80 85.00
M64 6.00p N/A 104.86 49.10 51.00 92.80 95.00

ISO 7040 Nylon Locking (Nyloc) Nuts

Compliant with AS 1214-1983/ISO 7040/DIN 985 Standards for Prevailing torque nuts with nonmetalic insert
Note* This table is interactive. Need a specific size? Click on any row in the table to filter according to your needs.
All measurements are provided in millimetres (mm)
Thread Diameter (D) Pitch Width Across Corners (min) Nut Height Overall Hex Height (min) Width Across Flats
Coarse Fine Min Max Min Max
M3 0.50p N/A 6.01 4.02 4.50 2.15 5.32 5.50
M4 0.70p N/A 7.66 5.52 6.00 2.90 6.78 7.00
M5 0.80p N/A 8.79 6.22 6.80 4.40 7.78 8.00
M6 1.00p N/A 11.05 7.42 8.00 4.90 9.78 10.00
M8 1.25p 1.00p 14.38 8.92 9.50 6.44 12.73 13.00
M10 1.50p 1.25p 17.77 11.20 11.90 8.04 15.73 16.00
M12 1.75p 1.25p / 1.50p 20.03 14.20 14.90 10.37 17.73 18.00
M14 2.00p 1.50p 23.36 15.90 17.00 12.10 20.67 21.00
M16 2.00p 1.50p 26.75 17.80 19.10 14.10 23.67 24.00
M18 (DIN 985) 2.50p 1.50p 29.56 17.66 18.50 13.00 26.16 27.00
M20 2.50p 1.50p 32.95 20.70 22.80 16.90 29.16 30.00
M22 (DIN 985) 2.50p 1.50p 35.21 20.70 22.00 15.00 31.00 32.00
M24 3.00p 1.50p / 2.50p 39.55 25.00 27.10 20.20 35.00 36.00
M27 (DIN 985) 3.00p 2.00p 45.20 25.70 27.00 17.00 40.00 41.00
M30 3.50p N/A 50.85 30.10 32.60 24.30 45.00 46.00
M33 (DIN 985) 3.50p N/A 55.37 31.40 33.00 22.00 49.00 50.00
M36 4.00p N/A 60.79 36.40 38.90 29.40 53.80 55.00
M42 (DIN 985) 4.50p N/A 72.09 40.50 42.00 23.10 63.80 65.00