What we make, and what we do not

The second half of that sentence is the useful one. A supplier who says yes to everything costs you two emails and a week before you find out, so the limits are on this page alongside the range. If we are the wrong factory for your part, we would rather you knew now.

Checking a drawing callout? Every DIN, ISO, JIS and ASTM number we list, in one table, with the two whose status has changed.

Range

Confirmed capability
Volume production	M1.0 – M5.0 — miniature and small-diameter screws
Standard fasteners to	M16
Products	Machine screws, self-tapping, self-drilling, thread-forming (trilobular), wood screws, drywall screws, type-cutting screws
Materials	Low and medium carbon steel, alloy steel, stainless steel, brass, aluminium, titanium
Standards worked to	ASTM · ANSI · AISI · DIN · ISO · IFI · JIS
Quality system	ISO 9001:2015 (cert. 020460, GCL International Ltd)
Environmental system	ISO 14001:2015 (cert. 67E01741)
Minimum order	From 10,000 pcs, varying with the part
Also supplied	Nuts, washers, rivets, blind rivets, rivet nuts, springs, CNC machined parts, hardware components

In-house forming, inspection, packing and dispatch, on our own floor in Shulin, New Taipei City, since 1994. More about the company →

On the floor

That line above — forming, inspection, packing and dispatch in-house — means these.

Two rows of heading and thread rolling machines, with coiled wire down the centre aisle and an overhead crane — The machine floor in Shulin. Heading and thread rolling machines along both sides, coiled wire waiting in the centre aisle, overhead crane above.

Cold heading machine with the wire feed roller set on the left — Cold header. The wire feed rollers are on the left.

Flat die thread rolling machine, showing the reciprocating die slide and oil nozzles — Flat die thread roller. The thread is rolled, not cut.

Automatic counting and bagging machine with conveyor, touchscreen and control cabinet — Counting and bagging line. How a box of “1000 pieces” is arrived at depends on how this is set.

Inspection equipment

2.5D vision measuring system (EM-2.5D). On the screen is the side profile of a screw — head dimensions, thread form and length.

Optical sorting machine with vibratory bowl feeder, enclosed camera station and control cabinet — Optical sorter. Parts are fed from the bowl, pass a camera station, and are diverted on the result.

This says what is on the floor. It does not say that every lot is inspected the same way. Sampling or 100 %, which measurement, and what the acceptance criteria are, is settled per job — what “passed inspection” actually means covers why that is worth settling before the order. Bring measurement or inspection requirements to the quotation stage.

A wide spread of fasteners laid out on a marble slab: different head styles, drives, platings and diameters — Part of the range, laid out at Automation Taipei in August 2026 — zinc, black oxide, copper and gold finishes across machine, tapping and forming types, from miniature up.

Custom work: what we take on

The common reason customers move to us is not price. It is that their current supplier will not change a dimension — changing a size means changing tooling, and a plant geared to long runs of standard parts declines.

At this size range the tooling is small and gets changed often, so a modified feature is usually a die adjustment rather than a new programme. To be precise about what that covers: an unusual diameter is often still a catalogue item — M1.7 and M2.2 sit on distributors' shelves. What does not is a modified feature: a head diameter that has to clear a housing, a thread length stopping short of a shoulder, a non-standard pitch, a drive the standard does not specify.

Send the drawing or the sample and we will tell you whether it is a modification or a new part, and what that means for lead time — before quoting.

What falls outside

Listing this costs us some enquiries. It costs both of us less than finding out on the third email.

Below M1.0. Specialist micro-screw houses go further down; we do not.
Above M16. Structural and construction bolting is a different plant.
Small quantities of standard building fasteners. For a few thousand drywall or wood screws in a stock size, distributor stock will reach you sooner and cheaper than a production run here.
Prototype quantities. Our minimum starts at ten thousand. If you need fifty pieces to prove a design, a machining house or a catalogue supplier is the right route — come back when the design is fixed and the volume is real.
Medical device quality systems. We hold ISO 9001:2015 and ISO 14001:2015. We do not hold ISO 13485, and we will say so rather than let it surface during an audit.

Documentation we can discuss

Requirements vary by market, and it is better to raise them at enquiry than at first delivery. Tell us which of these your process needs and we will tell you what we can evidence today:

EN 10204 inspection documents — which type your order requires
RoHS declarations, where parts enter electronic products
REACH SVHC statements — these come from the plating supplier, not from us directly
Material certificates and batch traceability
Embedded emissions data — ask before committing to volume; note that most buyers at this size sit under the CBAM de minimis threshold of 50 tonnes of CBAM goods per importer per year

On the standards that stop above this size range →

Enquiries

Item, size, material, finish, annual usage and application. A drawing or a sample is fastest.

sales@tigerfasteners.com

Request a quotation

Tell us the part and the quantity. We will come back on feasibility, lead time and price.

Or email us directly　sales@tigerfasteners.com