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+86 13143444311
Email：sst@szsst88.com
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Address：Building 9, First Industrial Zone, Tantou Industrial City, Songgang Street, Baoan District, Shenzhen 518105, Guangdong, China
Type:Titanium Fasteners
Materials:Titanium
Surface treatment:Anodized
Head Type:Hexagon head
Drive:External hex (wrench or socket)
Thread:Machine thread
Point:Plain, chamfered
Forming:Formed and turned; anodised after machining
Size:M1 M2 M3 M4 M5 M6 M7 M8 M9 M10
We make titanium fasteners as hexagon head bolts, anodised and quoted with the grade, head and thread to the drawing. The anodised film survives on the flats but cracks at the corners where a socket bears, so the film and the assembly socket are agreed together.
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ISO 9001:2015 · Manufacturing since 1998 · 8,678+ customers · 89 countries and regions
Made to order – there is no stock catalogue. Each part is produced to your drawing, and production starts after drawing review and first-article approval.
Titanium fasteners are screws and bolts made from titanium, used where weight, corrosion resistance or magnetic behaviour matter more than cost. The part recorded here is a hexagon head bolt in titanium, anodised, quoted in metric sizes from M1 upward with the length made to the drawing.
Titanium body. About half the mass of steel for comparable strength, with no rust in ordinary conditions.
Hexagon head. An external hexagon, driven with a wrench or a socket, where the final torque is applied.
Anodised finish. An oxide film grown on the surface, coloured by its thickness rather than by a pigment.
They are used in lightweight frames, marine fittings and equipment where the fastener is visible and the weight is counted. Titanium fasteners in this form are also chosen where a magnetic part would disturb a sensor nearby, so the grade and the film are both functional choices rather than appearance options.
On a hexagon head there are two kinds of surface: the flats, where the socket bears when it is fully seated, and the six corners, where a socket that is slightly loose or slightly tilted bites hardest. An anodised film behaves differently on the two. On a flat face it is loaded in compression over a large area and it survives; at a corner the load is concentrated and the film, which is an oxide and therefore brittle, cracks.
What happens after the crack is the titanium behaviour the film was meant to help with. Bare titanium picks up and seizes against steel tooling and against mating threads, so a corner that has lost its film becomes the place where a socket starts to skid. The visible result is a bright patch on a coloured head, and the functional result is a head that rounds off faster than a plain one would, because the corner is no longer protected.
The flats are the other half of the story. A socket only bears along the flats when it fits well; a socket that is one size up bears near the corners instead. That is why a hexagon head with a hard anodised film needs the right socket more than a plain head does: the film tolerates the correct tool and fails under the wrong one.
The thread has its own film problem. An anodised thread in titanium is still titanium under a brittle layer, and the layer does not lubricate. A dry anodised titanium thread can gall before it reaches its preload, which is why the assembly method and any lubricant are part of the specification rather than an afterthought.
The result is a fastener with an appearance finish that is also a wear surface. The colour is judged on the flats and the durability is judged at the corners, and the two are not the same question.
The part is quoted to the drawing with the head, the film and the thread stated separately. Custom lengths up to 2,000 mm, subject to DFM review after drawing submission. The quotation for titanium fasteners carries the grade, the head across flats and height, the anodising specification, the thread and the length.
| Item | How it is defined | What we control |
|---|---|---|
| Grade | Commercially pure or alloy | Alloy and mechanical properties |
| Head | Hexagon head | Across flats, height and bearing face |
| Film | Anodised oxide | Thickness and colour |
| Thread | Machine thread | Size, pitch and coverage |
| Socket | Tool for assembly | Across flats and fit |
| Mating part | Nut or tapped hole | Grade and pitch agreed |
On titanium fasteners the across flats is a dimension in the finished state. An anodised film grows out of the metal, so it does not change the size measurably, but the surface it presents at the corners is different from a machined one, and the socket is chosen for the finished part.
On titanium fasteners the film is specified by colour and by process. Two screws of the same colour can be anodised to different film thicknesses, and the thicker one is more brittle at the corners; that is a durability choice rather than an aesthetic one.
The thread and the mating part are agreed as a pair, and on a titanium joint the risk of galling is part of that agreement. A lubricant may be specified for the thread even where the head is anodised for appearance.
Four properties decide titanium fasteners of this form, and each one carries a cost:
| Property | What it gives | What it costs |
|---|---|---|
| Titanium body | Half the weight, no rust, no magnetism | Material and machining cost |
| Hexagon head | Wrench torque on six flats | Corners are where the film fails |
| Anodised film | Colour in the metal, no build | Brittle at a point load |
| Machine thread | A defined clamp | Galling on titanium threads |
The value of titanium fasteners is a bolt that removes weight and stays presentable without a coating that can chip. On a frame or a fitting that is seen and handled, that combination is the point.
On titanium fasteners the cost is that the finish is a load-bearing surface at the corners. The right socket preserves it and the wrong one takes it off, which makes tool discipline part of the durability of a titanium fastener.
The recorded finish is anodised titanium. It gives colour from the oxide thickness, adds no measurable build, and leaves the head at its machined dimensions, so the socket that fits the drawing fits the delivered part.
| Option | How it protects | Effect on head and thread | Typical use |
|---|---|---|---|
| Anodised, clear | Oxide grown on the surface | No build; harder at the flats | Wear resistance |
| Anodised, coloured | Oxide, colour by thickness | No build; colour in the metal | Visible colour-coded parts |
| Plain titanium | Natural passive oxide | No build | Mechanical and marine parts |
| Gold plated | Thin metal layer | Build; head re-checked | Warm decorative colour |
| Dry film lubricant | Low-friction film | Thin; reduces galling | Serviced joints |
On titanium fasteners the choice between anodised and plain comes down to the corners. A plain head shows wear as a polished corner, which is honest; an anodised head shows wear as a bright patch on a coloured surface, which is more visible and may be read as damage.
Where the joint is serviced, a dry film lubricant on the thread is the treatment that addresses galling. It is separate from the anodising, which is there for the surface rather than for the thread.
Three assemblies where weight and appearance are both specified:
| Where it sits | The bolt joins brackets and tubes in a frame where total mass is part of the design target. |
| When it goes wrong | The frames exceed their mass target, or the joints seize during assembly. |
| Why it happens | A steel bolt was used, and the weight or the galling was not accounted for. |
| What we control | Grade, film and lubricant agreed; first article assembled and weighed. |
| Where it sits | The bolt holds a fitting that sees salt spray where plated steel would fail within a season. |
| When it goes wrong | The head pits, or the joint seizes after a season. |
| Why it happens | The grade is not suitable for chlorides, and the thread has no lubricant. |
| What we control | Grade confirmed on the certificate; first article exposed and inspected. |
| Where it sits | The bolt is seen on a panel or a frame where the colour is part of the design. |
| When it goes wrong | The colour wears at the corners, or the heads do not match. |
| Why it happens | The film is uneven, and a loose socket took the colour off the corners. |
| What we control | Film and head checked; first article assembled with the customer socket. |
Four reasons that matter where the finish sits on the tool contact surface, each tied to something the drawing or the first article proves. All four show in the sample.
|
Film and socket stated
The drawing states the anodising and the socket size, because on a hexagon head the tool bears on the corners where the film is weakest. Basis: Film and socket agreed. |
Machined, then anodised
The part is finished before anodising, so the film grows on the final flats and corners rather than being cut through afterwards. Basis: Film on final geometry. |
|
Assembled with the socket
The first article is driven with the customer socket, because the film at the corners only shows in use. Basis: Socket proved on sample. |
Same film on repeat runs
Grade, head and anodising are recorded with the drawing revision, so a repeat batch looks and wears the same. Basis: Same film across orders. |
These bolts are formed and turned from titanium bar, with the hexagon head formed, the bearing face machined, the thread cut and the parts anodised; they are then inspected. The first piece of every run is measured on head across flats and height, thread and length, and the film is checked for colour and coverage.
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|
Titanium is turned at a lower surface speed than steel with more coolant, because the heat of the cut stays at the edge. On a hexagon head the corners are the most easily damaged feature in machining and the most visible one afterwards, so the head is checked on the first piece rather than at the end of the run.
The anodising is controlled by time and voltage, and the colour comes from the film thickness rather than an applied pigment. Two runs that differ in the bath can produce colours that are close but not identical, which is why a repeat order is anodised to the same specification rather than to a photograph.
On titanium fasteners the film is inspected on the flats and at the corners. A film that is thin at a corner is where a socket will take the colour off first, and that is the defect that shows in the customer’s assembly rather than on the drawing.
What decides whether titanium fasteners pass is the head, the film and the thread. The inspection agreement covers those, and the criteria come from the drawing.
Head across flats on the projector |
Thread and start checked |
Material checked |
Salt-spray testing where a coating is used |
The head is measured across flats and for height, and the corners are inspected for film coverage. A corner with a thin film is the place a socket will damage the part, and it is difficult to see on a coloured face.
The film is checked for colour consistency across the batch and for coverage on the flats and the corners. On a visible part the heads are compared side by side, because that is how the customer sees them on an assembly.
The thread is gauged and a sample is assembled with the mating nut using the specified lubricant. That test shows whether the joint reaches its clamp without galling, which the anodising does not guarantee.
Every batch of titanium fasteners is traceable to the bar it was made from and to the anodising lot that finished it. The grade, heat number and mechanical properties appear on the material certificate supplied with the parts, and the anodising record carries the process and the lot number.
ISO 9001:2015 |
RoHS test report |
Registered trademark |
Patent: security screw and driver |
With each shipment we supply the material certificate, the inspection record for the dimensions on the drawing, including the head and thread, and the anodising record. The records carry the drawing revision and the batch number, so a repeat order of titanium fasteners matches the first.
More than 8,678 customers in 89 countries and regions have ordered from Shi Shi Tong; 87% of orders come from repeat customers and 56% through referrals. Most projects follow the same route: drawing review, first-article approval, then batches checked against that sample. On an anodised part the first article is assembled with the customer socket, because the film at the corners only shows in use. Buyers visit during the process to review samples.
|
8,678+
customers served
|
87%
of orders from repeat customers
|
56%
of orders through referrals
|
89
countries and regions shipped to
|
Repeat orders of titanium fasteners are anodised to the same specification, because the colour is judged side by side. Buyers and quality engineers visit for sample review, process discussion and supplier audits; the visit is arranged around production so the machining cell and the anodising line can be seen on the day the parts run.
Customer group visit – sample review |
Customer group visit – process discussion |
Customer group visit – factory tour |
Customer visit – project kick-off |
Danish customer – drawing review |
Industry exhibition – meeting customers |
Not as a layer, because the oxide grows out of the metal. It can crack at a loaded corner, which shows as a bright patch.
At the six corners of a hex head, where a socket bears hardest, rather than on the flats.
Not locally. A damaged corner is a new anodising job, which is why the socket is part of the specification.
Weight and no magnetism. Stainless is the answer where weight is not the driver.
No. It is a surface finish, not a lubricant. A dry film lubricant is added where the joint is serviced.
Grade, across flats and head height, anodising specification, thread and length, and the socket used to assemble.
How a titanium fastener project runs from drawing to repeat delivery:
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1
Send the drawing and the socket
|
→ |
2
Grade, film and thread agreed
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→ |
3
First article driven with the socket
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→ |
4
Batch production and repeat orders
|
Each step is confirmed with you before the next one starts; the drawing revision from the first article is what repeat orders are checked against.
For a quotation, send the drawing with the grade, head across flats and height, anodising specification, thread and length, and the socket used to assemble the joint.
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Grade
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Head AF
|
Head height
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Anodising
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Thread
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Length
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Sending a drawing? The form below does not take attachments. Email the PDF, DXF or STEP file to sst@szsst88.com with the part name and quantity in the subject line – the drawing is reviewed and a quotation follows.
+86 13143444311
sst@szsst88.com
