Jfbolts is the prominent Bolts and Nuts Manufacturer in South Africa. Grade bolts are taken for the necessary passivation procedure to remove the extreme chemical action over the surface. In this process, the free ions are eliminated with the help of citric acid along with nitric acid, which is very powerful. This process improves the Stainless Steel Nuts quality by far means. The result comes as a thin layer is formed, which is of passivated oxide, once the free ions are eliminated from the surface of the 304 Steel Bolts. Hence, the resulted shield formed on the surface helps in the prevention of rust as well as corrosion.
Jfbolts is a well-renowned Nuts and Bolts Manufacturer in South Africa because of the additional value served. Excellent Properties have been poured into the SS bolts and Stainless Steel Nuts, which help strengthen in severe environments, preventing rusting and stopping corrosion. 316 SS Bolts are the best bolts for machines. Some of the most important chemicals required for producing UNS S30400 Steel Nuts are Teflon, Zinc, Xylon, and many others. These chemicals, when used, give high strength to the Grade 310 Nuts. Stainless Steel 304 hex bolt Supplier in South Africa gets the best quality of a Coated Stud Bolts. Gold, Bronze, Black, Green, Red, Grey (Charcoal) along with Red, etc. have been Coated on Stainless Steel Heavy Hex Bolt.
JfBolts, the Nuts Manufacturer in South Africa, is always ready with the 304 Stainless Steel nuts Stock. We also Provide Head Hex Bolt, SS Hexagonal Nut, and PTFE Coated Stud Bolts, just a few among the vast stock of Grade stainless Steel Bolts which is Served By Stainless Steel Bolts and Nuts Manufacturer in South Africa.
Largest Inventory
Customer Support
On Time Deliveries
ISO 9001 : 2015
Specification
Specification | ASTM A193/A673 , ASME SA673/SA193 |
---|---|
Stud Bolt size | M02 to M33, Custom Sizes |
Stud Bolts Length | 3 mm to 200 mm |
Stud Bolt | UNF, BSW, BSF, METRIC, UNC, or as required |
Standard of Stud Bolts | DIN 525, DIN 835, DIN 938, DIN 939, DIN 940, DIN 949-1, DIN 949-2, DIN 975, DIN 976, DIN 2509, BS 2693, BS 3692, BS 4439, IS 1862, IS 13178, ANSI/ASME B18.31.2, ANSI/ASME B16.5 |
Form of Stud Bolts | Hex, Threading, Square, Round as per Gauge Etc. |
Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin, etc. |
Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
Certification | Dual Certified As per ASTM & ASME Codes |
Popular Types of Stud Bolt | Stud Bolts, Fully Threaded Stud Bolts, Tap End Stud Bolts, Double End Stud Bolts, Stud Bolts with Reduced Shank, Reduced Shank, Flange Stud Bolts, Flange Bolting, Weld Studs |
Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
Test Certificate of Stud Bolts | as per EN 10204 / 3.1 Manufacturer Test Certificate |
Additional Certifications | PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
Production process | M24-M100: hot forging, M2-M24: Cold Froging, for custom-made connecting element machining and CNC |
Head drive of Stud Bolts | Six-Lobe, Phillips, Phillips/Slot, Slotted etc |
Packing of Stud Bolts | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
Surface Coating |
Ptfe Coated Stud Bolts Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating |
Stud Bolts finishing |
Coatings & Finishes : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide, |
Equivalent Grades
AISI Grade Equivalent | JIS Equivalent | Stainless Steel Notation | EN/DIN Numerical Equivalent | UNS designation | EN/DIN Symbolical Equivalent |
AISI 304 | SUS304 | SS 304 | EN 1.4301 | UNS S30400 | X4CrNi18-10 |
AISI 304L | SUS304L | SS 304L | EN 1.4307 | UNS S30403 | X2CrNi18-9 |
AISI 304H | SUS304H | SS 304H | EN 1.4948 | UNS S30409 | X2CrNiN18-10 |
Chemical Composition
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
304 | 0.08 max | 2.0 max | 0.75 max | 0.045 | 0.030 | 18.0-20.0 | – | 8.0-10.5 | 0.10 |
304L | 0.030 max | 2.0 max | 0.75 max | 0.045 | 0.030 | 18.0-20.0 | – | 8.0-12.0 | 0.10 |
304H | 0.04-0.10 | 2.0 max | 0.75 max | 0.045 | 0.030 | 18.0-20.0 | – | 8.0-10.5 | – |
Mechanical Properties
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness Rockwell B (HR B) max | Hardness Brinell (HB) max |
304 | 515 | 205 | 40 | 92 | 201 |
304L | 485 | 170 | 40 | 92 | 201 |
304H | 515 | 205 | 40 | 92 | 201 |
Stainless Steel 304 Hex Bolt Dimension
SS 304 Hex Bolt Dimension Table in South Africa, UNS S30400 Hex Bolt dimension chart in Sudan, M12 Size Heavy Hex bolt Chart in Tanzania, Size M16 Stud Bolt Dimensional Chart in Zambia.
NOMINAL SIZE (D) |
BODY DIAMETER |
HEAD THICKNESS SASTM A193 |
ACROASTM A193 THE FLATS |
ACROASTM A193 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 |
Note:- Following measurements are in millimeters
Stainless Steel 304 Hex Bolt Torque Chart
SS 304 Hex Bolt Torque Table in Zimbabwe, UNS S30400 Hex Bolt Torque chart in Tanzania, M12 Size Heavy Hex bolt Torque Chart in Sudan, Size M16 Stud Bolt Torque Chart in South Africa.
Torque Specifications |
|||||||
---|---|---|---|---|---|---|---|
Bolt Size
Inches or # |
Threads
Per Inch |
Standard Dry Torque in Inch-Pounds
|
|||||
304
Stainless Steel |
316
Stainless Steel |
||||||
#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
|
|||||
304
Stainless Steel |
316
Stainless Steel |
||||||
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
|
|||||
304
Stainless Steel |
316
Stainless Steel |
||||||
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
|
|||||
304
Stainless Steel |
316
Stainless Steel |
||||||
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 |
Note:- Following measurements are in millimeters
Applications & Operations
We at DC Engineering make sure that our every product is made of high quality raw material. We thoroughly test each and every product before dispatching it to our customers. DC Engineering is one of the most trusted manufacturers and suppliers of fasteners and bolts which are applicable in various industries.
- Gas Processing Industries
- Petrochemical Industries
- Power Generation Industries
- Food Processing Industries
- Chemical Industries
- Oil & Gas Industries
- Fertilizers Industries
- Sugar Industries
Experimentation & Testing
DC Engineering is known for its accurate and perfect dimensions. We at DC engineering thoroughly test all our products before shipping them to the customers. We carry out destructive as well as non-destructive tests on all our products.
- Impact Analysis
- Eddy Current Examining
- Power Generation Industries
- Hydrostatic Analysis
- Prompt Test
- Positive Material Recognition
- Large-Scale Test
- Pitting Protection Test
Packaging & Dispatching
DC Engineering uses the most safest and the most effective ways of packaging for all types of deliveries. We pack our goods in various ways such as:
- Wooden Boxes
- Wooden Crates
- Wooden Pallets
- Carton Boxes
- Shrink-Wrapped
- Bubble Wrap Packing Material
- Laminated & Metallized Films
- Wooden or Plastic Crates