Manufacturing in Bekasi, West Java — Indonesia ISO 9001 · IATF 16949 · ISO 14001 · ISO 45001
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TOPRECISION FASTENING INDONESIA

PT. TOPRECISION FASTENING INDONESIA

The fastener is
the smallest part
and the first failure.

We make precision fasteners below M6 — machine screws, self-tapping screws, PVD finishes, precoated locking, shoulder pins, inserts and riveting — for consumer electronics and for the joints of humanoid robots and dexterous hands. Forged, finished and inspected at one plant in Cikarang Utara, Bekasi.

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14

Fastener families

8

Production steps in-house

11

Instrument types in the lab

5

Management systems

7

Industry handbooks

Why the fastener decides

In a miniature assembly, the fastener is the only part
that is designed, made, finished, stored and driven
under conditions nobody else in the product sees.

A phone has a fixed stack height long before anyone specifies a screw. A dexterous finger has a bore tolerance and a load direction before anyone chooses a pin. The fastener arrives last, works hardest, and is the cheapest part to get wrong — which is exactly why getting it wrong is expensive.

Our position is narrow on purpose. Everything sits below M6. The two industries that shape our engineering are consumer electronics and embodied intelligence. And every process that decides whether the part works — die, form, thread, heat, finish, sort — is at one address, so no handover sits between the decisions.

Product catalogue

Fourteen families, one discipline

Micro screws, pins and spacers, then panel and lightweight products. Each family page carries the material, drive and finish range we actually produce.

All products

Micro Screws

Threaded fasteners for tapped holes, inserts and plastic bosses.

01 Machine Thread Micro Screws Precision machine screws for tapped holes, inserts and repeated service M0.6 – M2 02 Self-Tapping Micro Screws Thread-forming screws that cut their own thread in plastic and thin sheet M1.0 – M2.0 03 PVD Coated Screws Decorative and wear-resistant vacuum coatings that keep the thread in tolerance M1.0 – M2.0 04 Precoated Screws Locking, sealing and damping elements applied at the factory, not the line From M0.8 × 1.0 mm

Pins & Spacers

Pivot, locating and board-level hardware.

01 Shoulder Screws & Pins One part that clamps, locates and carries rotation Pivot & locating duties 02 Rod End Bearings Articulated joints for linear actuators and linkage structures Actuator & linkage joints 03 Standoffs & PCB Hardware Board stacking, soldered threads and high-current terminals Board-level hardware 04 Security Screws Drives that limit who can open the joint Restricted access

Thread & Panel

Inserts, riveting, captive and lightweight bolting.

01 Thread Inserts A durable metal thread inside plastic, aluminium and magnesium Light alloy & plastic 02 Clinching Nuts & Studs A permanent thread pressed into sheet metal, with no welding and no rivet Sheet metal panels 03 Rivet Nuts & Blind Rivets Threaded and permanent joints installed from one side of the panel One-side access 04 Captive Screws The screw stays with the panel, even when the joint is open Access panels & covers 05 Lock Washers Anti-loosening at the joint and transmission interface Joint anti-loosening 06 High-Strength Aluminium Bolts Lightweight joints without galvanic corrosion Lightweight joints

Focus industries

The two industries that shape the engineering

Not a claim of coverage — a statement of where the tooling, the finishes and the design work are concentrated.

Micro screws used in smartphone assembly

01

Consumer Electronics

Our core business: machine and self-tapping screws, PVD finishes and precoated locking for phones, wearables, boards and precision modules.

M0.6 – M2.0Nine drive typesTen PVD colours
Read the handbook
Robotic dexterous hand with articulated fingers

02

Embodied Intelligence

Shoulder screws, thread inserts, high-strength screws and rod end bearings for the joints, frames and transmission systems of humanoid robots and dexterous hands.

Joint pivotsM1–M4 high strengthLightweight frames
Read the handbook

Also serving

HPC & AI Servers Chassis sheet metal Industrial Electronics Cabinets & enclosures New Energy Vehicles Up to 65% lighter Light Alloy Die-Casting Mg & Al castings Low-Altitude Economy Wedge-lock washers

Manufacturing

Eight steps, one address

From the die that sets the head form to the sorter that decides what ships. Nothing is handed to a subcontractor between these steps.

All capabilities
01 Tooling The die decides the part — so the die is made here 02 Cold Forging Formed from wire, not cut from bar 03 Thread Rolling Threads formed by pressure, not cut by removal 04 Machining Turned parts where forming cannot reach 05 Heat Treatment Hardness where it is needed, toughness where it is not 06 Surface Treatment Corrosion, colour and friction — chosen as a system 07 Automatic Assembly Sub-assemblies built by machine, not by hand 08 Optical Sorting Every part passes the sorter before it is packed 09 Laboratory Eleven instrument types, in the same building as the press — measurement closes the loop on every step above. Enter the laboratory →
Cold forging presses at the Toprecision plant in Bekasi

Process control

The die decides, the sorter verifies

Every characteristic of a cold-formed screw is set by the die that formed it — head diameter, head height, recess geometry, concentricity. That is why the die shop is in the same building: when a sample needs a different head height, the geometry can be changed and re-tried inside the development cycle instead of queuing at an outside toolmaker.

At the other end, every part passes the sorter before packing. At M1 a defective screw is not a part that fails a test — it is a part that jams a feeder or cams out a driver, and the cost of that stoppage is what makes sorting a production step rather than a final inspection.

  • In-house die design, manufacture and maintenance
  • Thread rolled after forming, gauged and re-gauged after coating
  • Heat treatment with hydrogen relief after plating
  • Eleven instrument types in the inspection laboratory

Engineering services

Six services, from prototype to after-sales

The technical work starts before the drawing is frozen, because that is where most of the cost is locked in.

Engineering home

01

Rapid Prototypes

Fastest 1 day with all processes in-house, maximum 1 week when some steps are outsourced.

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02

Professional Design Consulting

Concept to product, collaborative design, fastener database, 2D/3D support and simulation.

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03

Professional Testing

Composition, dimensional, friction coefficient, salt spray, SMT soldering, hardness and tensile.

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04

Teardown & Analysis

Joint and independent teardown with a written report and consolidation proposals.

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05

Continuous Process Improvement

Cold forming instead of machining, parameter tuning and multi-part consolidation.

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06

Professional Training

Manufacturing process, quality planning, basic and advanced design and selection.

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Application notes

The mechanism before the part

Three engineering analyses of failure modes that appear in miniature joints — written to be used at the drawing stage.

All notes
Dexterous hand with articulated finger joints

Embodied Intelligence

Keeping play out of a finger joint

Play in a dexterous finger usually starts at the pivot, not at the screw thread. A short engineering look at why a shoulder screw behaves differently from a plain screw in a rotating joint.

Read the note
Low profile pan head micro screws

Consumer Electronics

When the stack height is already fixed

In a thin device the fastener is usually the last thing chosen and the first thing that has to give. How head form and drive choice recover height without changing the screw diameter.

Read the note
Coated bolts for a lightweight joint

New Energy Vehicles

Why a hot joint loses preload

A joint that holds torque on the bench can relax in service, because steel and aluminium expand at different rates. What the material choice does to preload at temperature.

Read the note

Management systems

Quality, environment and safety

The systems operated within the group. Certificates are site- and scope-specific and are issued on request rather than summarised here.

ISO 9001

Quality management system

IATF 16949

Automotive quality management

ISO 14001

Environmental management

ISO 45001

Occupational health & safety

IECQ QC 080000

Hazardous substance process management

Technical articles

Engineering writing

Principles, not sales claims: torque windows, finish selection, thread choice, corrosion and sealing.

All articles
20 October 2026 The torque window on a micro screw, and why it is so narrow Below M2 the gap between a joint that holds and a thread that strips is small. Here is the mechanics behind the window, and the three variables that actually set it. Engineering 8 October 2026 Choosing a fastener finish: corrosion, colour or dimensions Zinc, zinc-nickel, nickel, passivation and PVD do different jobs. Picking one for the wrong reason is how a joint ends up either rusty or out of tolerance. Materials 24 September 2026 Thread-forming or thread-cutting: the choice that decides your boss Both remove the insert, but they stress the plastic differently. The wrong choice shows up as a cracked boss, not as a failed screw. Engineering 10 September 2026 Galvanic corrosion: why a steel bolt eats a magnesium casting The corrosion happens at the interface, and the part that disappears is the expensive one. A look at the mechanism and the two ways to design it out. Materials

Frequently asked

Questions we are asked before an RFQ

Answered from the plant rather than from a marketing brief. If an answer depends on your drawing, it says so.

Full FAQ library

What sizes do you manufacture?
The catalogue covers machine thread screws from M0.6 to M2.0, self-tapping screws from M1.0 to M2.0, and PVD coated screws from M1.0 to M2.0. Precoated locking is available from M0.8 × 1.0 mm. Everything we make sits below M6, which is the band the plant is tooled and organised around. Larger sizes are quoted to drawing rather than from catalogue.
Where is the plant, and what happens there?
The plant is at Jl. Tekno Raya Blok A2B, Tanjungsari, Cikarang Utara, Bekasi, West Java 17530, Indonesia, and was established in 2025 as the Indonesian subsidiary. Tooling, cold forging, thread rolling, machining, heat treatment, surface treatment including PVD, automatic assembly and optical sorting all sit at this one address, so a lot does not travel between sites between processes.
How fast can you supply a prototype?
One day is achievable when every process is in-house, and one week is the outer limit when some steps have to be outsourced. Samples come either from stock where a standard part is close enough, a functional replacement from stock, or CNC machining where the geometry is new.
Can you work from a 3D model?
A model is enough to start the review, but production needs a drawing that states material, surface treatment, thread class and the tolerances that matter. If you only have a model, the specification is drafted for you to confirm before a die is cut.
Which materials and finishes can you supply?
Carbon steel SWRCH10A, SWRCH18A and SWRCH22A; stainless SUS302HQ, SUS304, SUS316 and SUS410; titanium TA2; and brass. Finishes include zinc in several colours, zinc-nickel, nickel, passivation, nano coating, stoving paint and PVD in ten standard tones. SUS302HQ, 304 and 316 are low-magnetism and TA2 is non-magnetic.
Which drive and head styles are available?
Drives: Phillips, TORX®, TORX PLUS®, hex socket, slotted, Tri-wing, Y-type, Pozidriv and double-cross. Heads: countersunk (F), small pan (P) and pan or oval (C). The combination is chosen with the stack height and the production driver in mind, because a drive that works by hand can cam out on an automated line.
What is your quality system status?
The management systems operated within the group are ISO 9001, IATF 16949, ISO 14001, ISO 45001 and IECQ QC 080000. Certificates are site- and scope-specific, so the certificate covering a particular plant and product scope is issued on request rather than summarised on a web page.
Can fasteners be sealed to IP68?
Yes — by pre-coating the head or the thread, by fitting a sealing ring, or by using a sealed clinching stud, sealed rivet nut or sealed blind rivet. Which one applies depends on whether the joint will be opened again and on which side of the panel is accessible.
Which industries do you serve?
Seven segments have dedicated handbooks: consumer electronics, embodied intelligence, HPC and AI servers, industrial electronics, new energy vehicles, light alloy die-casting and the low-altitude economy. Consumer electronics and embodied intelligence — humanoid robots and dexterous hands — are the two the plant is built around.

Send the drawing, get an engineering answer

Part number, material, finish and the joint conditions are enough to start. The reply comes from the plant, not from a call centre.

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