HANDA. NINGBO

Part group 01 / 05 · Ningbo, China

Custom screws,
turned to your drawing.

Machine screws, self-tapping screws, set screws, shoulder screws, security heads. From M1.6 upward, length to whatever the print says. Thread, head, point and plating come out of your file, not out of a catalogue page.

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Specification

Screws to drawing

Sizes
M1.6 to M12 as standard, M14 to M20 quoted per drawing. Length 2 to 200 mm. Every critical dimension is read from the print, never rounded to the nearest catalogue size.
Heads
Pan, countersunk, cheese, hex, socket, truss, oval, flanged, and security heads (Torx pin, hex pin, one-way). Custom profiles cut to your drawing.
Points and threads
Machine screw with full or part thread, self-tapping C / F / R, self-drilling (Tek), wood and drywall screws. Left-hand and multi-start threads quoted per drawing.
Materials
Carbon steel 4.8 / 8.8 / 10.9, stainless A2 (304) and A4 (316), brass, aluminium, titanium on request.
Finish and inspection
Blue zinc, clear zinc, black oxide, nickel, zinc-nickel, Dacromet, plain, passivation for stainless. Plating thickness is stated on the inspection sheet, together with go / no-go thread gauge results.

Every dimension is taken from your drawing or sample. Where this page and your drawing disagree, your drawing wins.

Where these parts go

Applications

Where small screws matter more than the price of the box: assemblies that must not loosen, threads that must not strip, and plating that has to survive the workshop next to it.

Bolts

Hex, socket, flange, carriage and special-head bolts, class 8.8 to 12.9.

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Nuts & Washers

Hex, nyloc and cap nuts; flat, spring and lock washers in four materials.

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Turned Parts

Pins, shafts, spacers, bosses and special components from bar stock.

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Threaded Rods

Full-thread rod, double-end and tap-end studs, cut to length.

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Questions buyers ask

01
Can you make a screw from just a sample?
Yes. Send one physical sample, or a photo with calliper measurements of shank, thread pitch, head diameter and length, and we will draw it up and quote. A 3D file or 2D drawing makes it faster and cheaper.
02
What is the smallest order?
One piece for a prototype, then whatever break suits you. There is no per-size minimum quantity gate: one container can hold ten sizes.
03
Which thread standards do you cut?
ISO metric coarse and fine, UNC, UNF, BSW, BSF, and the DIN / ANSI equivalents. Thread class 6g / 2A is standard; tighter classes are quoted per drawing.
04
Do you plate parts in-house?
Plating runs at a partner plant in Ningbo that we have used for years. The batch goes out with a written plating spec; the returned lot is checked for coating thickness, and high-strength parts are checked for hydrogen embrittlement control.
05
How fast is a sample?
A simple turned screw in carbon steel: 5 to 7 working days after drawing approval. Stainless, or a security head with a special profile: 10 to 14 days.
06
Can you ship to a forwarder in another city?
Yes. FOB Ningbo is the default. We can also deliver to a forwarder in Shanghai or Yiwu on your account, or quote CIF to your port.

Next step

Send one drawing.
Get a costed sheet.

Drawing or sample, material, quantity, and the destination port. We reply within one working day with unit price, tooling, lead time and shipping.

WhatsApp +86 150 5745 4081 yulonghua50@gmail.com RFQ form