Precision fasteners,
cold-headed in Cikarang
from M0.5 to M27.
We cold-head, heat-treat, plate and inspect fasteners in our own plant in Cikarang, West Java. Ten product families, tolerances held to ±0.05 mm, samples in as little as one day.
ISO 9001 · IATF 16949 · ISO 14001 · ISO 45001 · IECQ QC 080000
Precision · M0.5 – M27
One plant. Six processes.
No outside hand-offs.
Tool and die making, cold heading, heat treatment, thread rolling, surface finishing and automated optical inspection all run at our plant in the Jababeka industrial estate, Cikarang. A part never leaves our control between operations, which is why we can quote tolerances instead of promising them.
We form screws smaller than a grain of rice and M27 structural bolts on the same floor. Indonesian customers get samples in days and repeat orders in 2 to 4 weeks; most technical questions are answered by the engineer who owns the tooling.
- Six processes under one roof, no subcontracting between steps
- Samples from a drawing in as little as one working day
- Technical support in English, Bahasa Indonesia and Mandarin
TOL ±0.05 · GRID 1:1
The ZT68 aluminum bolt
weighs about a third of the steel part it replaces.
Bolts are the hidden weight in an electric drivetrain. ZT68 is a cold-headed 7-series aluminum alloy bolt: it holds 6.8-grade steel strength at up to 65% less weight, and it does not set up galvanic corrosion against magnesium or aluminum housings, so no insulating washers are needed.
- Tensile strength ≥ 615 MPa · yield ≥ 490 MPa
- Stable to 150 °C, with less preload loss than steel
- Anodized finish passes 60-day neutral salt spray
- 1.3–1.5d engagement lets housings stay thin
From EV batteries to microelectronics
Eight industries, eight different failure modes. A battery pack that leaks, a tool holder that walks, a server latch that sticks: the fastener is usually where the fix starts.
What happens to your part, step by step
A tool strike, a furnace cycle, a plating bath, an optical check. Four things decide whether the 10,000th piece matches the first one.
In-house cold heading
Single- and multi-station forming from M0.6 to M27 with near-net-shape accuracy and up to 98% material yield.
Heat treatment & coatings
Quenching, aging, anodizing, X-coat and anti-galling finishes. Bath chemistry and coating thickness are logged per lot.
Certified quality labs
Metallography, hardness, tensile, salt-spray, friction coefficient and RoHS testing on-site to IATF 16949 standards.
Application engineering
Design consulting, 1-day prototyping, joint teardown analysis and cost engineering across the product lifecycle.
130+ more parts, same inquiry desk
The parts we stock beyond the ten families, plus 138 engineering notes written by the people who run the tooling. One form reaches all of it.
Extended catalog
130+ standard parts with full specifications: TORX® tool screws, self-tapping and tangless thread inserts, aluminum sleeves and more.
Browse full catalog 02Industry solutions
Fastening strategies by application: EV battery packs, HPC & AI servers, die-cast light-alloy housings, robotics and consumer electronics.
See solutions by industry 03Technical knowledge base
138 engineering articles: thread engagement, galling prevention, self-loosening mechanics, washer selection and fastener design guides.
Read the insights 04About the group
Group history, honors and quality system: the manufacturing record behind every Toprecision fastener.
Meet the groupHave a joint that needs engineering?
Send us your drawing, sample or application challenge. Our engineers will respond with a feasibility review, process recommendation and costing, usually within 24 hours.
