PETROCHEMICAL
HEAVY HEX NUTS
Heavy hex nuts are slightly larger and thicker than standard hex nuts and come in various different grades which are covered within the ASTM A194 standard. We hold in stock a large variety of different grades in both Imperial and Metric threads. Self Colour, Zinc Plated and Galvanised finishes are all available from stock with other coating available on request.
| NUT GRADE | ASTM | MATERIAL DESCRIPTION |
|---|---|---|
| 2H | A194 | Carbon Steel |
| 2HM | A194 | Carbon Steel |
| 3 | A194 | Type 501 Stainless Steel |
| 4 | A194 | Carbon-Molybdenum |
| 6 | A194 | Type 410 Stainless Steel |
| 7 | A194 | Type 4140 / 4142 / 4145 |
| 7M | A194 | Type 4140H / 4142H / 4145H |
| 8 | A194 | Type 304 Stainless Steel |
| 8A | A194 | Type 304 Stainless Steel |
| 8C | A194 | Type 347 Stainless Steel |
| 8T | A194 | Type 321 Stainless Steel |
| 8M | A194 | Type 316 Stainless Steel |
| 8MA | A194 | Type 316 Stainless Steel |
NUT GRADE
2H
ASTMA194
MaterialCarbon Steel
2HM
ASTMA194
MaterialCarbon Steel
3
ASTMA194
MaterialType 501 Stainless Steel
4
ASTMA194
MaterialCarbon-Molybdenum
6
ASTMA194
MaterialType 410 Stainless Steel
7
ASTMA194
MaterialType 4140 / 4142 / 4145
7M
ASTMA194
MaterialType 4140H / 4142H / 4145H
8
ASTMA194
MaterialType 304 Stainless Steel
8A
ASTMA194
MaterialType 304 Stainless Steel
8C
ASTMA194
MaterialType 347 Stainless Steel
8T
ASTMA194
MaterialType 321 Stainless Steel
8M
ASTMA194
MaterialType 316 Stainless Steel
8MA
ASTMA194
MaterialType 316 Stainless Steel
DIMENSIONS - IMPERIAL
Dimensions in accordance with ANSI B18.2.2
Dimensions in Inches
Single Chamfer and Washer Face
Sizes from 1/4″ up to 4″
Self-Colour, Zinc & Galvanised finish from stock
Other coatings available on request
| DIAMETER (D) | TPI (UNC) | TPI (UNS) | A/F | THICKNESS (T) | WEIGHT (KG/100) |
|---|---|---|---|---|---|
| 1/4 | 20 | - | 1/2 | 1/4 | 0.3 |
| 5/16 | 18 | - | 9/16 | 5/16 | 0.4 |
| 3/8 | 16 | - | 11/16 | 3/8 | 1.4 |
| 7/16 | 14 | - | 3/4 | 7/16 | 1.9 |
| 1/2 | 13 | - | 7/8 | 1/2 | 3.0 |
| 9/16 | 12 | - | 15/16 | 9/16 | 3.7 |
| 5/8 | 11 | - | 1.1/16 | 5/8 | 5.4 |
| 3/4 | 10 | - | 1.1/4 | 3/4 | 8.8 |
| 7/8 | 9 | - | 1.7/16 | 7/8 | 13.5 |
| 1 | 8 | 8 | 1.5/8 | 1 | 19.3 |
| 1.1/8 | 7 | 8 | 1.13/16 | 1.1/8 | 26.9 |
| 1.1/4 | 7 | 8 | 2 | 1.1/4 | 35.7 |
| 1.3/8 | 6 | 8 | 2.3/16 | 1.3/8 | 46.3 |
| 1.1/2 | 6 | 8 | 2.3/8 | 1.1/2 | 59.5 |
| 1.5/8 | - | 8 | 2.9/16 | 1.5/8 | 73.6 |
| 1.3/4 | 5 | 8 | 2.3/4 | 1.3/4 | 92.7 |
| 1.7/8 | - | 8 | 2.15/16 | 1.7/8 | 109.5 |
| 2 | 4.5 | 8 | 3.1/8 | 2 | 135.8 |
| 2.1/4 | 4.5 | 8 | 3.1/2 | 2.1/4 | 190.3 |
| 2.1/2 | 4 | 8 | 3.7/8 | 2.1/2 | 256.0 |
| 2.3/4 | 4 | 8 | 4.1/4 | 2.3/4 | 335.0 |
| 3 | 4 | 8 | 4.5/8 | 3 | 432.0 |
| 3.1/4 | 4 | 8 | 5 | 3.1/4 | 543.0 |
| 3.1/2 | 4 | 8 | 5.3/8 | 3.1/2 | 694.0 |
DIAMETER
1/4
TPI (UNC)20
TPI (UNS)-
A/F1/2
Thickness (T)1/4
Weight (KG/100)0.3
5/16
TPI (UNC)18
TPI (UNS)-
A/F9/16
Thickness (T)5/16
Weight (KG/100)0.4
3/8
TPI (UNC)16
TPI (UNS)-
A/F11/16
Thickness (T)3/8
Weight (KG/100)1.4
7/16
TPI (UNC)14
TPI (UNS)-
A/F3/4
Thickness (T)7/16
Weight (KG/100)1.9
1/2
TPI (UNC)13
TPI (UNS)-
A/F7/8
Thickness (T)1/2
Weight (KG/100)3.0
9/16
TPI (UNC)12
TPI (UNS)-
A/F15/16
Thickness (T)9/16
Weight (KG/100)3.7
5/8
TPI (UNC)11
TPI (UNS)-
A/F1 1/6
Thickness (T)5/8
Weight (KG/100)5.4
3/4
TPI (UNC)10
TPI (UNS)-
A/F1 1/4
Thickness (T)3/4
Weight (KG/100)8.8
7/8
TPI (UNC)9
TPI (UNS)-
A/F1 7/16
Thickness (T)7/8
Weight (KG/100)13.5
1
TPI (UNC)8
TPI (UNS)8
A/F1 5/8
Thickness (T)1
Weight (KG/100)19.3
1 1/8
TPI (UNC)7
TPI (UNS)8
A/F1 13/16
Thickness1 1/8
Weight26.9
1 1/4
TPI (UNC)7
TPI (UNS)8
A/F2
Thickness1 1/4
Weight35.7
1 3/8
TPI (UNC)6
TPI (UNS)8
A/F2 3/16
Thickness1 3/8
Weight46.3
1 1/2
TPI (UNC)6
TPI (UNS)8
A/F2 3/8
Thickness1 1/2
Weight59.5
1 5/8
TPI (UNC)-
TPI (UNS)8
A/F2 9/16
Thickness1 5/8
Weight73.6
1 3/4
TPI (UNC)5
TPI (UNS)8
A/F2 3/4
Thickness1 3/4
Weight92.7
1 7/8
TPI (UNC)-
TPI (UNS)8
A/F2 15/16
Thickness1 7/8
Weight109.5
2
TPI (UNC)4.5
TPI (UNS)8
A/F3 1/8
Thickness2
Weight135.8
2 1/4
TPI (UNC)4.5
TPI (UNS)8
A/F3 1/2
Thickness2 1/4
Weight190.3
2 1/2
TPI (UNC)4
TPI (UNS)8
A/F3 7/8
Thickness2 1/2
Weight256.0
2 3/4
TPI (UNC)4
TPI (UNS)8
A/F4 1/4
Thickness2 3/4
Weight335.0
3
TPI (UNC)4
TPI (UNS)8
A/F4 5/8
Thickness3
Weight432.0
3 1/4
TPI (UNC)4
TPI (UNS)8
A/F5
Thickness3 1/4
Weight543.0
3 1/2
TPI (UNC)4
TPI (UNS)8
A/F5 3/8
Thickness3 1/2
Weight694.0
Dimensions in accordance with DIN934 (H=D)
Dimensions in millimetres
Double Chamfer no washer face
Sizes from M8 up to M76
Self-Colour, Zinc & Galvanised finish from stock
Other coatings available on request
| DIAMETER (D) | THREAD PITCH | A/F | THICKNESS (T) | WEIGHT (KG/100) |
|---|---|---|---|---|
| M8 | 1.25 | 13 | 8 | 0.65 |
| M10 | 1.50 | 17 | 10 | 1.45 |
| M12 | 1.75 | 19 | 12 | 2.17 |
| M14 | 2.00 | 22 | 14 | 3.13 |
| M16 | 2.00 | 24 | 16 | 4.16 |
| M18 | 2.50 | 27 | 18 | 6.20 |
| M20 | 2.50 | 30 | 20 | 8.05 |
| M22 | 2.50 | 32 | 22 | 9.85 |
| M24 | 3.00 | 36 | 24 | 13.80 |
| M27 | 3.00 | 41 | 27 | 20.65 |
| M30 | 3.50 | 46 | 30 | 32.60 |
| M33 | 3.50 | 50 | 33 | 43.50 |
| M36 | 4.00 | 55 | 36 | 56.50 |
| M39 | 4.00 | 60 | 39 | 72.00 |
| M42 | 4.50 | 65 | 42 | 90.00 |
| M45 | 4.50 | 70 | 45 | 110.00 |
| M48 | 5.00 | 75 | 48 | 132.00 |
| M52 | 5.00 | 80 | 52 | 165.00 |
| M56 | 5.50 | 85 | 56 | 205.00 |
| M60 | 5.50 | 90 | 60 | 250.00 |
| M64 | 6.00 | 95 | 64 | 300.00 |
| M68 | 6.00 | 100 | 68 | 350.00 |
| M72 | 6.00 | 105 | 72 | 420.00 |
| M76 | 6.00 | 110 | 76 | 380.00 |
DIAMETER
M8
Thread Pitch1.25
A/F13
Thickness (T)8
Weight (KG/100)0.65
M10
Thread Pitch1.50
A/F17
Thickness10
Weight1.45
M12
Thread Pitch1.75
A/F19
Thickness12
Weight2.17
M14
Thread Pitch2.00
A/F22
Thickness14
Weight3.13
M16
Thread Pitch2.00
A/F24
Thickness16
Weight4.16
M18
Thread Pitch2.50
A/F27
Thickness18
Weight6.20
M20
Thread Pitch2.50
A/F30
Thickness20
Weight8.05
M22
Thread Pitch2.50
A/F32
Thickness22
Weight9.85
M24
Thread Pitch3.00
A/F36
Thickness24
Weight13.80
M27
Thread Pitch3.00
A/F41
Thickness27
Weight20.65
M30
Thread Pitch3.50
A/F46
Thickness30
Weight27.90
M33
Thread Pitch3.50
A/F50
Thickness33
Weight36.00
M36
Thread Pitch4.00
A/F55
Thickness36
Weight49.15
M39
Thread Pitch4.00
A/F60
Thickness39
Weight62.75
M42
Thread Pitch4.50
A/F65
Thickness42
Weight81.50
M45
Thread Pitch4.50
A/F70
Thickness45
Weight100.00
M48
Thread Pitch5.00
A/F75
Thickness48
Weight122.00
M52
Thread Pitch5.00
A/F80
Thickness52
Weight152.50
M56
Thread Pitch5.50
A/F85
Thickness56
Weight177.50
M64
Thread Pitch6.00
A/F95
Thickness64
Weight247.50
M72
Thread Pitch6.00
A/F105
Thickness72
Weight334.00
M76
Thread Pitch6.00
A/F110
Thickness76
Weight380.00