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Stainless Steel 316Ti Screws are titanium-stabilized fasteners designed for extreme corrosion resistance and enhanced structural stability in high-temperature and chemically aggressive environments. Manufactured under standards such as DIN 1.4571 and ASTM A276, these screws are widely used in marine engineering, chemical processing plants, and heat exchanger assemblies where conventional stainless steel grades may suffer from intergranular corrosion or creep deformation.
The addition of titanium in the alloy composition improves carbide stability, making these fasteners suitable for long-term service in elevated temperature conditions. Engineers prefer them for applications where reliability under stress and exposure to chlorides or acidic media is critical.
KK Fasteners supplies Stainless Steel 316Ti Screws to OEMs and industrial distributors across global markets, ensuring full material traceability and compliance with international fastener standards for critical engineering applications.
| Parameter | Specification |
|---|---|
| Material | Stainless Steel 316Ti (AISI 316Ti / DIN 1.4571) |
| Grade Options | A4-70, A4-80 |
| Size Range | M3 to M36 / #6 to 1-1/2” |
| Thread Types | Metric (M), UNC, UNF |
| Standards | DIN 912, DIN 933, ISO 4762, ASTM A276, BS 3643 |
| Surface Finish | Bright polished, passivated, black oxide (optional) |
| Types | Hex Head, Socket Head, Countersunk, Button Head |
| Tensile Strength | 520–750 MPa (depending on grade) |
| Hardness | Up to 200 HV |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 316Ti | min. | – | – | – | – | – | 16.0 | 2.00 | 10.0 | – |
| max. | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0 | 3.00 | 14.0 | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 316Ti | 515 | 205 | 35 | 75 | 205 |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 316Ti | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Flat Head Machine Screws
| Nominal Size | A | H | J | T | M | G | N | Phillips Driver Size | |||||
| Head Diameter | Height of Head | Width of Slot | Depth of Slot | Dimensions of Recess | |||||||||
| Diameter | Depth | Width | |||||||||||
| Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | ||
| 2 4 5 6 7* 8 9* 10 12 14* 1/4 5/16 3/8 1/2 | .172 .225 .252 .279 .305 .332 .358 .385 .438 .491 .507 .635 .762 .875 | 147 .195 .220 .244 .268 .292 .316 .340 .389 .437 .452 .568 .685 775 | .051 .067 .075 .083 .091 .100 .108 .116 .132 .148 .153 .191 .230 .223 | .040 .055 .062 .069 .076 .084 .091 .098 .112 .127 .131 .165 .200 .198 | .031 .039 .043 .048 .048 .054 .054 .060 .067 .075 .075 .084 .094 .106 | .023 .031 .035 .039 .039 .045 .045 .050 .056 .064 .064 .072 .081 .091 | .023 .030 .034 .038 .041 .045 .049 .053 .060 .068 .070 .088 .106 .103 | .015 .020 .022 .024 .027 .029 .032 .034 .039 .044 .046 .058 .070 .065 | .102 .128 .154 .174 .182 .189 .258 .204 .268 .283 .283 .365 .393 .424 | .089 .115 .141 .161 .169 .176 .245 .191 .255 .270 .270 .352 .380 .411 | .063 .089 .086 .106 .114 .121 .146 .136 .156 .171 .171 .216 .245 .276 | .017 .018 .027 .029 .030 .031 .034 .032 .036 .039 .035 .061 .065 .069 | 1 1 2 2 2 2 2 2-3* 3 3 3 4 4 4 |
| Nominal Size | A | W | H | F | U | J | T | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Width Across Flats | Width Across Corners | Height of Head | Diameter of Washer | Thickness of Washer | Width of Slot | Depth of Slot | |||||||
| Max. | Min. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | |
| 4 6 7 8 10 12 14 1/4 5/16 3/8 | .187 .250 .250 .250 .312 .312 .438 .375 .500 .562 | .181 .244 .244 .244 .305 .305 .428 .367 .489 .551 | .202 .272 .272 .272 .340 .340 .409 .409 .545 .614 | .060 .093 .093 .110 .120 .155 .190 .190 .230 .295 | .049 .080 .080 .096 .105 .139 .172 .172 .208 .270 | .243 .328 .328 .348 .414 .432 .520 .520 .676 .780 | .225 .302 .302 .322 .384 .398 .480 .480 .624 .720 | .019 .025 .029 .031 .031 .039 .050 .050 .055 .063 | .011 .015 .017 .019 .019 .022 .030 .030 .035 .037 | .039 .048 .048 .054 .060 .067 .075 .075 .084 .094 | .031 .039 .039 .045 .050 .056 .064 .064 .072 .081 | .042 .053 .062 .074 .080 .103 .111 .111 .134 .168 | .025 .033 .040 .052 .057 .077 .083 .083 100 .131 |
|
Nominal
|
Thread.
|
Hex Socket Size
|
Body diameter and Head height
|
Head Dia
|
Soc. length
|
||
|
Size
|
Pitch
|
Max
|
Min
|
Max
|
Min
|
||
|
J
|
D /H
|
A
|
K
|
||||
|
M3
|
0.5
|
2.50
|
3.00
|
2.86
|
5.50
|
5.20
|
1.3
|
|
M4
|
0.70
|
3.00
|
4.00
|
3.82
|
7.00
|
6.64
|
2.00
|
|
M5
|
0.8
|
4.00
|
5.00
|
4.82
|
8.50
|
8.14
|
2.70
|
|
M6
|
1.0
|
5.00
|
6.00
|
5.82
|
10.00
|
9.64
|
3.30
|
|
M8
|
1.25
|
6.00
|
8.00
|
7.78
|
13.00
|
12.57
|
4.3
|
|
M10
|
1.5
|
8.00
|
10.00
|
9.78
|
16.00
|
15.57
|
5.50
|
|
M12
|
1.75
|
10.00
|
12.00
|
11.73
|
18.00
|
17.57
|
6.60
|
|
M16
|
2.0
|
14.00
|
16.00
|
15.73
|
24.00
|
23.48
|
8.80
|
|
M20
|
2.5
|
17.00
|
20.00
|
19.67
|
30.00
|
29.48
|
10.70
|
|
M24
|
3.0
|
19.00
|
24.00
|
23.67
|
36.00
|
35.38
|
12.90
|
Stainless Steel 316Ti Screws are used in industries where corrosion resistance, mechanical strength, and thermal stability are essential for safety and performance.
Stainless Steel 316Ti Screws are manufactured using a controlled cold forging process followed by precision thread rolling to maintain grain structure integrity and mechanical strength. Heat treatment is applied where required to achieve consistent hardness and tensile performance.
Each batch undergoes dimensional inspection, hardness testing, and surface finish verification to ensure compliance with DIN, ISO, and ASTM standards. Additional passivation treatments enhance corrosion resistance by strengthening the chromium oxide layer.
KK Fasteners implements full lot traceability and in-process quality controls to ensure that every batch of Stainless Steel 316Ti Screws meets strict industrial performance requirements before dispatch to global customers.
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Stainless Steel 316Ti Screws are titanium-stabilized fasteners designed for improved resistance to corrosion and high-temperature environments. The titanium content prevents carbide precipitation, making them suitable for chemical plants, marine structures, and heat-exposed industrial systems where long-term stability is required.
316Ti contains titanium, which enhances resistance to intergranular corrosion during welding or prolonged heat exposure. While 316 offers strong corrosion resistance, 316Ti performs better in high-temperature service conditions, making it more reliable for continuous industrial applications involving thermal cycling.
These screws are commonly manufactured as per DIN 1.4571, ASTM A276, ISO 3506, and BS 3643 standards. These specifications ensure consistent mechanical strength, corrosion resistance, and dimensional accuracy for global industrial and engineering applications.
They are widely used in marine engineering, chemical processing, oil & gas facilities, power plants, and desalination systems. Their resistance to chlorides, acids, and high temperatures makes them suitable for critical fastening applications in harsh environments.
A reliable supplier should provide ISO certification, full material traceability, compliance with international standards, and proper inspection reports. Buyers should also evaluate export experience and quality control systems. KK Fasteners supplies certified fasteners with documented quality assurance for global industries.
Stainless Steel 316Ti Screws are engineered for environments where corrosion resistance and thermal stability cannot be compromised. With strict adherence to international fastener standards and full material traceability, KK Fasteners supports critical industries with dependable fastening solutions.
For technical specifications, custom requirements, or bulk export inquiries, connect with KK Fasteners to request a quotation or engineering consultation.
