BOLTS and NUTS Manufacturer in South Africa

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

Stainless Steel 304 Bolt


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