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Stainless Steel 316/316L Fasteners are engineered for demanding environments where corrosion resistance, mechanical strength, and long-term reliability are critical. Manufactured from molybdenum-alloyed austenitic stainless steel, these fasteners provide superior resistance to chloride-induced corrosion, making them suitable for marine, chemical processing, and offshore applications. Commonly produced in accordance with ASTM A193 B8M, ASTM A320, DIN, and ISO standards, they include bolts, nuts, screws, studs, and washers designed for precision assembly.
These fasteners are widely used in oil & gas pipelines, desalination plants, and food-grade processing systems where exposure to aggressive media is constant. Their low carbon variant (316L) ensures enhanced weldability and minimizes carbide precipitation during fabrication.
KK Fasteners supplies Stainless Steel 316/316L Fasteners to international markets with full material traceability, batch testing, and compliance documentation, supporting both OEM production and EPC project requirements.
| Parameter | Details |
|---|---|
| Material Variants | Stainless Steel 316, 316L |
| Grade Standards | ASTM A193 B8M, ASTM A194 8M, ASTM F593, DIN 931, ISO 4014 |
| Size Range | M3 to M64 / 1/8” to 2” |
| Thread Type | Metric (Coarse/Fine), UNC, UNF, BSW |
| Fastener Types | Hex bolts, socket head bolts, threaded rods, studs, nuts, washers |
| Surface Finish | Plain, passivated, electropolished |
| Tensile Strength | Minimum 515 MPa (316), varies by standard |
| Hardness | Max 95 HRB (annealed condition) |
| Corrosion Resistance | Excellent in chloride and acidic environments |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
|
316 |
0.08 max |
2.0 max |
0.75
max |
0.045 max |
0.03 max |
16.0-18.0 |
2.00-3.00 |
10.0-14.0 |
0.10 max
|
|
316L |
0.03 max |
2.0 max |
0.75 max |
0.045 max |
0.03 max |
16.0-18.0 |
2.00-3.00 |
10.0-14.0 |
0.10 max
|
| Grade | Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elong (% in 50mm) min | Hardness - Rockwell B (HR B) max | Hardness - Brinell (HB) max |
|---|---|---|---|---|---|
|
316 |
515 |
205
|
40 |
95 |
217
|
|
316L |
485 |
170
|
40 |
95 |
217
|
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Elec Resistivity (nΩ.m) | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
0-100°C |
0-315°C
|
0-538°C |
At 100°C
|
At 500°C
|
|
|
|
316/316L
|
8000
|
193
|
15.9
|
16.2
|
17.5
|
16.3 |
21.5
|
500
|
740 |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
|---|---|---|---|---|---|---|---|
|
|
|
BS
|
En
|
No
|
Name
|
|
|
|
SS 316
|
S31600 |
316S31
|
58H, 58J
|
1.4401
|
X5CrNiMo17-12-2
|
2347
|
SUS 316
|
|
SS 316L
|
S31603
|
316S11
|
–
|
1.4404
|
X2CrNiMo17-12-2
|
2348
|
SUS 316L
|
All measurements in millimeters
| NOMINAL SIZE (D) | BODY DIAMETER | HEAD THICKNESS ASTM A193 | ACRO ASTMA193 THE FLATS | ACRO ASTM 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
|
Stainless Steel 316/316L Fasteners are used in environments where corrosion resistance and durability are essential for long-term performance.
Production of Stainless Steel 316/316L Fasteners involves cold forging and CNC machining to achieve precise dimensional accuracy and consistent mechanical properties. Threads are rolled to improve fatigue resistance, while heat treatment ensures optimal strength and ductility.
Quality assurance includes dimensional inspection using calibrated gauges, tensile and hardness testing, and surface finish verification through passivation checks. Each batch undergoes PMI (Positive Material Identification) and is traceable to raw material heat numbers.
At KK Fasteners, inspection protocols align with ISO 9001 standards, ensuring that every shipment meets international compliance requirements and project specifications.
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Stainless Steel 316/316L fasteners are corrosion-resistant fastening components made from molybdenum-alloyed austenitic stainless steel. They are designed for joining mechanical parts in harsh environments such as marine, chemical, and industrial systems where resistance to chlorides, acids, and moisture is critical for long-term performance and reliability.
The key difference is carbon content. SS 316 contains higher carbon, offering slightly higher strength, while SS 316L has lower carbon content, which improves weldability and reduces the risk of carbide precipitation during welding. 316L is preferred for welded structures and highly corrosive environments.
These fasteners are commonly manufactured according to ASTM A193 B8M, ASTM A194 8M, ASTM F593, ISO 4014, DIN 931, and related international standards. These specifications ensure dimensional accuracy, mechanical strength, and consistent corrosion resistance for global industrial applications.
They are widely used in marine engineering, oil & gas pipelines, chemical processing plants, food and beverage equipment, pharmaceutical machinery, desalination systems, and coastal construction projects where exposure to saltwater or aggressive chemicals is common.
A reliable manufacturer should provide material test certificates, ISO certification, full traceability, and compliance with international standards. Strong export capability and in-house quality testing are also important. KK Fasteners supplies SS 316/316L fasteners with verified material traceability and global delivery support.
Stainless Steel 316/316L Fasteners deliver reliable performance in corrosive and high-demand environments, supported by precise manufacturing and strict quality controls. KK Fasteners provides consistent supply with full traceability and engineering support for global projects. Request a quote or connect with the technical team to discuss specifications, custom requirements, or bulk supply options.
