Over a thousand years have passed since copper was first used. The Copper Bolts are suitable for applications involving chemical or architectural requirements because of their varied qualities. Due to its high malleability and ductility, copper may be formed into a variety of shapes, including different-sized and shaped bolts, nuts, and washers. The copper fasteners suppliers advise using the material for projects involving high amounts of heat, like heat exchangers, because it is also a good conductor of heat and electricity.
It is simple to mix the metal with other pure metals or alloys to boost its resistance to maritime environments. The copper snap fasteners are perfect for maritime applications due to their excellent anti-microbial qualities and resistance to biofouling. Buyers in the maritime engineering sector utilise copper bolts due to a higher level of biofouling resistance, particularly because algae, moss, lichen, or other bio-life is repulsed by these components.
The copper screw's naturally occurring pink-orange hue makes it suitable for a variety of decorative uses. The copper stud bolt gives the application a good elevation in terms of physical attractiveness from its use to secure marine vessels to doors and architectural construction.
| Standard | IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI and all International Standards |
|---|---|
| Threads: | BSF, UNF METRIC, UNC, BSW or as required |
| Standard | ANSI – American National Standards Institute
DIN:DIN 933, DIN 931, DIN 970, DIN 934 UTS – Unified Thread Standard : UNF, NPT, NPTF, UNS, UNC, UNEF ISO – International Organization for Standardization ISO 4033, : ISO 4032, JIS standards |
| Fasteners/ Bolts Size | M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160 |
| Length | 3 mm to 200 mm |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe etc |
| Test Certificate | as per EN 10204 / 3.1 Manufacturer Test Certificate |
| Finishing | Zinc white, (yellow, black, blue), black oxide,
Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated, Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, Stainless Steel, some special one like DACROMET and Mechanically Applied coating |
| raw materials of Source | JSPL, Usha Martin, Tata Steel, Mukund Steel, RINL, Dhamm Steel etc. |
| Form | Square, Hex, Threading as per Gauge, Round Etc. |
| Process of Production | M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element |
| Surface Coating |
|
| Packing | IN BULK: pallet, canton, carton / Small Boxs / pallet or customer request |
Torque Specifications |
|||||||
|---|---|---|---|---|---|---|---|
Bolt Size
Inches or # |
Threads
Per Inch |
Standard Dry Torque in Inch-Pounds
|
|||||
#2 |
56 |
2.5 |
2.6 |
||||
64 |
3.0 |
3.2 |
|||||
#3 |
48 |
3.9 |
4.0 |
||||
56 |
4.4 |
4.6 |
|||||
#4 |
40 |
5.2 |
5.5 |
||||
48 |
6.6 |
6.9 |
|||||
#5 |
40 |
7.7 |
8.1 |
||||
44 |
9.4 |
9.8 |
|||||
#6 |
32 |
9.6 |
10.1 |
||||
40 |
12.1 |
12.7 |
|||||
#8 |
32 |
19.8 |
20.7 |
||||
36 |
22.0 |
23.0 |
|||||
#10 |
24 |
22.8 |
23.8 |
||||
32 |
31.7 |
33.1 |
|||||
Bolt Size
Inches or # |
Threads
Per Inch |
Standard Dry Torque in Inch-Pounds
|
|||||
|---|---|---|---|---|---|---|---|
1/4 |
20 |
75.2 |
78.8 |
||||
28 |
94.0 |
99.0 |
|||||
5/16 |
18 |
132 |
138 |
||||
24 |
142 |
147 |
|||||
3/8 |
16 |
236 |
247 |
||||
24 |
259 |
271 |
|||||
7/16 |
14 |
376 |
393 |
||||
20 |
400 |
418 |
|||||
1/2 |
13 |
517 |
542 |
||||
20 |
541 |
565 |
|||||
Bolt Size
Inches or # |
Threads
Per Inch |
Standard Dry Torque in Inch-Pounds
|
|||||
|---|---|---|---|---|---|---|---|
9/16 |
12 |
682 |
713 |
||||
18 |
752 |
787 |
|||||
5/8 |
11 |
1110 |
1160 |
||||
18 |
1244 |
1301 |
|||||
3/4 |
10 |
1530 |
1582 |
||||
16 |
1490 |
1558 |
|||||
7/8 |
9 |
2328 |
2430 |
||||
14 |
2318 |
2420 |
|||||
1 |
8 |
3440 |
3595 |
||||
14 |
3110 |
3250 |
|||||
Bolt Size
Inches or # |
Threads
Per Inch |
Standard Dry Torque in Foot-Pounds
|
|||||
|---|---|---|---|---|---|---|---|
1 1/8 |
7 |
413 |
432 |
||||
12 |
390 |
408 |
|||||
1 1/4 |
7 |
523 |
546 |
||||
12 |
480 |
504 |
|||||
1 1/2 |
6 |
888 |
930 |
||||
12 |
703 |
732 |
|||||
| Products | Country |
|---|---|
| Copper DIN933 DIN931 Hex Head Bolt | Spain, Mexico, Egypt, UK |
| Copper Hex Head Bolt M6 | Australia, Philippines, NY 12203 (USA), Nigeria |
| M3 - M40 Copper Weld Bolt | United Arab Emirates (UAE), South Korea, |
| ASME/ANSI B 18.2.1 Copper Hex Bolt | Germany, Thailand, Czechia |
| M8 M10 full thread Brass hex head bolt DIN933 | Japan, Europe, Philippines, Poland |
Nominal Size or Basic Major Thread Diameter |
F |
G |
H |
||||||
|---|---|---|---|---|---|---|---|---|---|
Width Across Flats |
Width Across Corners |
Thickness |
|||||||
Basic |
Max |
Min |
Max |
Min |
Basic |
Max |
Min |
||
1/4 |
.2500 |
7/16 |
.438 |
.428 |
.505 |
.488 |
7/32 |
.226 |
.212 |
5/16 |
.3125 |
1/2 |
.500 |
.489 |
.577 |
.557 |
17/64 |
.273 |
.258 |
3/8 |
.3750 |
9/16 |
.562 |
.551 |
.650 |
.628 |
21/64 |
.337 |
.479 |
7/16 |
.4375 |
11/16 |
.688 |
.675 |
.794 |
.768 |
3/8 |
.385 |
.365 |
1/2 |
.5000 |
3/4 |
.750 |
.736 |
.866 |
.840 |
7/16 |
.448 |
.427 |
9/16 |
.5625 |
7/8 |
.875 |
.861 |
1.010 |
.982 |
31/64 |
.496 |
.473 |
5/8 |
.6250 |
15/16 |
.938 |
.922 |
1.083 |
1.051 |
35/64 |
.559 |
.535 |
3/4 |
.7500 |
1-1/8 |
1.125 |
1.088 |
1.299 |
1.240 |
41/64 |
.665 |
.617 |
7/8 |
.8750 |
1-5/16 |
1.312 |
1.269 |
1.516 |
1.447 |
3/4 |
.776 |
.724 |
1 |
1.0000 |
1-1/2 |
1.500 |
1.450 |
1.732 |
1.653 |
55/64 |
.887 |
.831 |
1-1/8 |
1.1250 |
1-11/16 |
1.688 |
1.631 |
1.949 |
1.859 |
31/32 |
.999 |
.939 |
1-3/8 |
1.3750 |
2-1/16 |
2.062 |
1.994 |
2.382 |
2.273 |
1-11/64 |
1.206 |
1.138 |
1-1/2 |
1.500 |
2-1/4 |
2.250 |
2.175 |
2.598 |
2.480 |
1-9/32 |
1.ASTM A194 GR. 8 |
1.245 |
1-5/8 |
1.6250 |
2-7/16 |
2.438 |
2.356 |
2.815 |
2.686 |
1-25/64 |
1.429 |
1.353 |
1-3/4 |
1.7500 |
2-5/8 |
2.625 |
2.538 |
3.031 |
2.893 |
1-1/2 |
1.540 |
1.460 |
2 |
2.0000 |
3 |
3.000 |
2.900 |
3.464 |
3.306 |
1-23/32 |
1.763 |
1.675 |
2-1/4 |
2.2500 |
3-3/8 |
3.375 |
3.263 |
3.897 |
3.719 |
1-15/16 |
1.986 |
1.890 |
2-1/2 |
2.5000 |
3-3/4 |
3.750 |
3.625 |
4.330 |
4.133 |
2-5/32 |
2.209 |
2.105 |
2-3/4 |
2.7500 |
4-1/8 |
4.125 |
3.988 |
4.763 |
4.546 |
2-3/8 |
2.431 |
2.319 |
NOMINAL SIZE (D) |
BODY DIAMETER |
HEAD THICKNESS |
ACROSS THE FLATS |
ACROSS CORNERS |
||||
|---|---|---|---|---|---|---|---|---|
D (MAX) |
D (MIN) |
H (MAX) |
H (MIN) |
F (MAX) |
F (MIN) |
C (MAX) |
C (MIN) |
|
m10 |
10.00 |
9.78 |
6.63 |
6.17 |
17.00 |
15.73 |
18.48 |
17.77 |
m12 |
12.00 |
11.73 |
7.76 |
4.24 |
19.00 |
17.73 |
20.78 |
20.03 |
m14 |
14.00 |
13.73 |
9.09 |
8.51 |
22.00 |
20.67 |
24.25 |
23.35 |
m16 |
16.00 |
15.73 |
10.32 |
9.68 |
24.00 |
23.67 |
27.71 |
26.75 |
m20 |
20.00 |
19.67 |
12.88 |
12.12 |
30.00 |
29.16 |
34.64 |
32.95 |
m24 |
24.00 |
23.67 |
15.44 |
14.56 |
36.00 |
35.00 |
41.57 |
39.55 |
m30 |
30.00 |
29.67 |
19.48 |
17.92 |
46.00 |
45.00 |
53.12 |
50.85 |
m36 |
36.00 |
35.61 |
23.38 |
21.63 |
55.00 |
53.80 |
63.51 |
60.79 |
m42 |
42.00 |
41.38 |
26.97 |
25.03 |
65.00 |
62.90 |
75.06 |
71.71 |
m48 |
48.00 |
47.38 |
31.07 |
28.93 |
75.00 |
72.60 |
86.60 |
82.76 |
m56 |
56.00 |
55.26 |
36.2 |
33.80 |
85.00 |
82.20 |
98.15 |
93.71 |
m64 |
64.00 |
63.26 |
41.32 |
38.68 |
95.00 |
91.80 |
109.70 |
104.65 |
m72 |
72.00 |
71.26 |
46.45 |
43.55 |
105.00 |
101.40 |
121.24 |
115.60 |
m80 |
80.00 |
79.26 |
51.58 |
48.42 |
115.00 |
111.00 |
132.72 |
126.54 |
m90 |
90.00 |
89.13 |
57.74 |
54.26 |
130.00 |
125.50 |
150.11 |
143.07 |
m100 |
90.00 |
99.13 |
63.9 |
60.10 |
145.00 |
140.00 |
167.43 |
159.60 |
Nominal Size or Basic Major Thread Diameter |
F |
G |
H |
||||||
|---|---|---|---|---|---|---|---|---|---|
Width Across Flats |
Width Across Corners |
Thickness |
|||||||
Basic |
Max |
Min |
Max |
Min |
Basic |
Max |
Min |
||
1/4 |
.2500 |
7/16 |
.438 |
.428 |
.505 |
.488 |
7/32 |
.226 |
.212 |
5/16 |
.3125 |
1/2 |
.500 |
.489 |
.577 |
.557 |
17/64 |
.273 |
.258 |
3/8 |
.3750 |
9/16 |
.562 |
.551 |
.650 |
.628 |
21/64 |
.337 |
.479 |
7/16 |
.4375 |
11/16 |
.688 |
.675 |
.794 |
.768 |
3/8 |
.385 |
.365 |
1/2 |
.5000 |
3/4 |
.750 |
.736 |
.866 |
.840 |
7/16 |
.448 |
.427 |
9/16 |
.5625 |
7/8 |
.875 |
.861 |
1.010 |
.982 |
31/64 |
.496 |
.473 |
5/8 |
.6250 |
15/16 |
.938 |
.922 |
1.083 |
1.051 |
35/64 |
.559 |
.535 |
3/4 |
.7500 |
1-1/8 |
1.125 |
1.088 |
1.299 |
1.240 |
41/64 |
.665 |
.617 |
7/8 |
.8750 |
1-5/16 |
1.312 |
1.269 |
1.516 |
1.447 |
3/4 |
.776 |
.724 |
1 |
1.0000 |
1-1/2 |
1.500 |
1.450 |
1.732 |
1.653 |
55/64 |
.887 |
.831 |
1-1/8 |
1.1250 |
1-11/16 |
1.688 |
1.631 |
1.949 |
1.859 |
31/32 |
.999 |
.939 |
1-3/8 |
1.3750 |
2-1/16 |
2.062 |
1.994 |
2.382 |
2.273 |
1-11/64 |
1.206 |
1.138 |
1-1/2 |
1.500 |
2-1/4 |
2.250 |
2.175 |
2.598 |
2.480 |
1-9/32 |
1.ASTM A194 GR. 8 |
1.245 |
1-5/8 |
1.6250 |
2-7/16 |
2.438 |
2.356 |
2.815 |
2.686 |
1-25/64 |
1.429 |
1.353 |
1-3/4 |
1.7500 |
2-5/8 |
2.625 |
2.538 |
3.031 |
2.893 |
1-1/2 |
1.540 |
1.460 |
2 |
2.0000 |
3 |
3.000 |
2.900 |
3.464 |
3.306 |
1-23/32 |
1.763 |
1.675 |
2-1/4 |
2.2500 |
3-3/8 |
3.375 |
3.263 |
3.897 |
3.719 |
1-15/16 |
1.986 |
1.890 |
2-1/2 |
2.5000 |
3-3/4 |
3.750 |
3.625 |
4.330 |
4.133 |
2-5/32 |
2.209 |
2.105 |
2-3/4 |
2.7500 |
4-1/8 |
4.125 |
3.988 |
4.763 |
4.546 |
2-3/8 |
2.431 |
2.319 |
Nut Size (mm) |
Diameter* (mm) |
Height (mm) |
||
|---|---|---|---|---|
Hex Nut |
Jam Nut |
Nylock Nut |
||
2 |
4 |
1.6 |
1.2 |
- |
2.5 |
5 |
2 |
1.6 |
- |
3 |
5.5 |
2.4 |
1.8 |
4 |
4 |
7 |
3.2 |
2.2 |
5 |
5 |
8 |
4 |
2.7 |
5 |
6 |
10 |
5 |
3.2 |
6 |
7 |
11 |
5.5 |
3.5 |
- |
8 |
13 |
6.5 |
4 |
8 |
10 |
17 |
8 |
5 |
10 |
12 |
19 |
10 |
6 |
12 |
14 |
22 |
11 |
7 |
14 |
16 |
24 |
13 |
8 |
16 |
18 |
27 |
15 |
9 |
18.5 |
20 |
30 |
16 |
10 |
20 |
* This is the diameter across the flats. It is also the size of wrench to use. |
||||
101 Cu Tie Bar |
Copper Eye Bolt |
101 Copper Bolts and Nuts |
110 Copper Fasteners
|
110 Cu fasteners |
102 Cu Anchor Bolts |
Copper Hex Nuts |
Copper Bolts |
