Eagleflying can supply the turnkey drywall screw production line.

Drywall screws are one of the highest-volume construction fasteners in the world — used for fixing gypsum board to wood studs, light-gauge steel studs, ceilings, and partition walls. A turnkey drywall screw line takes you from steel wire rod to carton-packed finished screws.

1. Typical Products

Bugle head drywall screws

Coarse thread: for wood studs

Fine thread: for metal studs

Self-tapping / sharp point

Self-drilling / Tek point (drills light steel without pre-drilling)

Black phosphate, zinc plated, or Ruspert finish

Common sizes: #6 / #7 / #8 (3.5 / 3.9 / 4.2mm), lengths 25–75mm; full line range M3.5–M4.8 (#6–#10), 13–150 mm (1/2"–6"); standards such as ASTM C1002, EN 14566, DIN 18182.

2. Production Flow

Wire Rod→Descaling/Pre-treatment→Wire Drawing→Cold Heading→Thread Rolling→Heat Treatment→Surface Treatment→Inspection→Packing

Stage	Equipment	Purpose
Wire preparation	Descaler, lubricant coater	Clean and prep wire for drawing
Wire drawing	Straight-type / pulley drawing machine	Reduce rod to screw shank diameter
Cold heading	1-die 2-blow header	Form bugle head, drive recess, point
Thread rolling	High-speed flat-die roller	Roll fine/coarse threads on soft blank
Heat treatment	Mesh-belt hardening + tempering furnace	Case-hardened surface, tough core
Surface treatment	Black phosphate line / zinc plating line	Corrosion resistance + mud adhesion
Inspection	Optical sorter, hardness tester, torque test	Dimensional & mechanical QC
Packing	Counting + bagging / box packing machine	Bulk, boxed, or collated strips

Threads are rolled before heat treatment; this is the standard drywall screw method and gives stronger, cleaner threads than cutting.

3. Key machine specification (reference)

Wire diameter: 3.5–4.8mm

Screw length: 13–150mm

Cold heading: 60–200pcs/min (size dependent)

Thread rolling: 90–220pcs/min

Header motor: 5.5–11kW

Thread roller motor: 4–7.5kW

Realistic line efficiency: 80–90% under stable conditions

Catalog speeds are not sustained speeds. Tooling wear, wire quality, length changes, and packing bottlenecks all affect real output.

4. Machine configuration

No.	Equipment	Function
1	Pay-off + straightener	Control wire tension and straightness
2	Wire drawing machine	Reduce rod to 3.5/3.9/4.2/4.8mm, apply lubricant
3	Cold heading machine (1D2B/2D2B)	Form bugle head, neck and blank length
4	Thread rolling machine	Flat-die thread forming (coarse / fine / hi-low)
5	De-oiling machine	Remove rolling oil before heat treatment
6	Mesh-belt heat treatment furnace	Case hardening + tempering
7	Black phosphate line	Corrosion protection (standard for drywall)
8	Optical sorter	Reject cracks, thread flaws, wrong length
9	Packing machine	100/200/500/1000pcs per box

5. Capacity Reference

Size	Header Speed	Roller Speed	Balanced Output	Annual (300d×20h)
M3.5×25mm	200pcs/min.	220pcs/min.	180pcs/min.	~64.8 Million pcs/yr ≈ 35–40 t/yr
M3.5×35mm	200pcs/min.	220pcs/min.	180pcs/min.	~64.8 Million pcs/yr ≈ 50–55 t/yr
M4.2×50mm	160pcs/min.	180pcs/min.	150pcs/min.	~54 Million pcs/yr ≈ 120–140 t/yr
M4.8×75mm	100pcs/min.	120pcs/min.	95pcs/min.	~34.2 Million pcs/yr ≈ 180–200 t/yr
M4.8×150mm	60-70pcs/min.	90-110pcs/min.	60pcs/min.	~21.6 Million pcs/yr ≈ 270–310 t/yr

Note: Output drops significantly at max size due to longer feed and roll cycle time. This is inherent to drywall screw geometry.

6. Material & Finishing

Wire: C1022A/10B21/low-carbon cold heading wire

Case hardness: approx. HRC50–56

Core hardness: approx. HRC28–38

Black phosphate: indoor dry environments, good joint-compound adhesion

Zinc plating: higher corrosion resistance

Ruspert / ceramic: humid or semi-corrosive environments

7. Line Configurations We Offer

Basic line:

1 header + 1 thread roller + simple furnace + manual packing

Good for trial production or small drywal screw plant..

Standard Line:

Wire drawing + 1D2B header + high-speed thread roller + mesh-belt heat treatment + black phosphate line + automatic packing

Best choice for standard drywall screw plant.

High-Speed Line:

Dual headers + dual rollers + online inspection + robotic/collated packing

For large-scale industrial base.

8. Our Scope as Turnkey Integrator

We design and supply the complete line:

Line configuration by product mix and target capacity

Machine sourcing from verified Chinese fastener-equipment makers

Factory layout and material flow drawing

Tooling and die list (header dies, thread rolls, drill-point tools)

Heat-treatment recipe and phosphate process parameters

English operation manuals and spare-parts list

Installation supervision/remote commissioning

After-sales coordination with equipment suppliers

9. Why Buyers Choose a China-Made Turnkey Line

Lower CAPEX than European/Japanese lines

Mature supply chain for headers, rollers, furnaces, phosphate lines

Fast delivery for emerging-market greenfield plants

Spare parts and consumables are economical

10. Equipment Data

Mesh-belt heat treatment furnace: case hardening + tempering, 85–150 kg/h standard, up to 300 kg/h wide belt

Black phosphate line: 200–260 kg/h, standard for drywall screws

Cold heading machine: wire 3.5–4.8 mm, max blank 150 mm, 60–200 pcs/min by size

Thread rolling machine: flat-die, M3.5–M4.8, max 150 mm, 90–220 pcs/min

Optical sorter: 120–200 pcs/min, checks head, length, thread, crack, point

FAQ:

Q: Can one line make both wood-screw and drywall-screw types?

A: Yes, by changing dies, thread rolls, and heat-treatment settings — but not instantly. Changeover time should be planned.

Q: Do you supply the steel wire?

A: We can recommend Chinese wire mills; many clients buy wire locally to save freight.

Q: Can the line make self-drilling Tek screws?

A: Yes. Drill-point forming and stricter heat treatment are required vs. sharp-point drywall screws.

Q: Can the line make self-drilling Tek screws?What coating should I choose?

A: Black phosphate for indoor drywall; zinc or Ruspert for humid, coastal, or external envelope use.

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