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Help CenterZinc Plated Metal Stamping Parts Lock Strike Plates for Wooden and Security Doors
Product Spotlights
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Product Spotlights
Lock strike plates are stamped from carbon steel sheet, blanked and punched with the latch box opening and countersunk screw holes in one stroke so hole-to-opening positions are fixed by the die. The box lip is formed to guide the latch tongue, and positions are held to ±0.05 mm standard tolerance so the plate aligns flush on the door face without filing. Zinc plating is applied after stamping, covering the cut edges inside the box opening where uncoated strike plates rust first. Gauges from 0.3 to 6.0 mm cover standard wooden door plates through thicker security door reinforcement plates, with MOQ 1 piece negotiable for hardware set orders.
Key Features
Opening and holes pierced in one stroke — The latch opening and screw holes are punched together, so their relative positions never depend on separate setups.
Formed box lip guides the latch — The lip is drawn or formed to the lock's throw direction, keeping latch action smooth across the door's life.
Countersunk holes for flush mounting — Screw heads sit below the plate face, so the door closes over the plate without interference.
Zinc plating after stamping ★ — Plating covers the cut edges inside the box opening, where raw plates rust first in humid door frames.
Gauge range from wooden to security doors ★ — 0.3-6.0 mm covers standard plates through reinforced security door plates on the same press line.
Hardware-set order terms — MOQ 1 piece negotiable and 15-30 working days lead time suit mixed hardware ranges ★.
Technical Specifications
| Parameter | Typical Value |
|---|---|
| Material | Carbon steel SPCC / Q235B ★ |
| Sheet Thickness | 0.3 - 6.0 mm, per door type ★ |
| Process | Blanking, punching, box forming, zinc plating ★ |
| Tolerance | ±0.05 mm standard; tighter tolerances discussable ★ |
| Finish | Zinc plating (blue / white); black oxide optional ★ |
| Box Types | Rectangular box, box lip per lock drawing |
| Press Capacity | 25T - 500T, 100+ sets of stamping machinery ★ |
| MOQ | 1 Piece (negotiable depending on order volume) ★ |
| Lead Time | 15 - 30 working days after sample approval ★ |
| Port of Shipment | Tianjin / Qinhuangdao ★ |
Typical Applications
Mortise lock strike plates for wooden doors
Cylinder lock and deadbolt strike plates
Security door reinforcement strike plates
Cabinet and locker lock strikes
Aluminum and PVC door lock strike plates
Why Choose Us
Strike plates are judged by two failures: a latch that drags on a misaligned plate, and rust blooming inside the box opening a year after installation. Piercing the opening and holes in one die removes the alignment variable, and plating after stamping covers the cut edges inside the box — the sequence detail that decides whether the plate survives a humid door frame. Gauges and box forms follow the lock drawing rather than a fixed catalog, so a hardware range of standard and security plates can be sourced from one supplier with in-house dies, and trial quantities from 1 piece let lock makers validate the plate against their latch before scaling ★.
### Company Profile
Cangzhou Honglang Hardware Manufacturing Co., Ltd. was established in 2017 and operates a 3,000-5,000 square meter factory with 51-100 employees, including 5-10 quality inspectors. Quality system: ISO 9001 (No. GH003-2023Q0664) and IATF 16949 (No. 130220/A/0001/SM/ZH). Equipment: 100+ sets of stamping machinery with presses from 25T to 500T, plus in-house die design and die manufacturing. Nearly 1,000 part types are produced for door and window hardware and lock industries alongside automotive, central HVAC, furniture machinery, electronics, wind power, power supply and telecom, exported to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East and Western Europe. Send your drawing or sample for a tooling and quotation review.
### FAQ
1. Can you stamp strike plates to our lock drawing?
Yes. We work from PDF drawings, 2D/3D CAD files or lock samples. Please confirm opening form, box depth, screw hole pattern and finish so the die can be quoted.
2. What is the MOQ?
MOQ is 1 piece, negotiable depending on order volume.
3. Can samples be provided before mass production?
Yes. Sample plates are produced for latch fitment before mass stamping.
4. Why plate after stamping instead of pre-plated sheet?
Post-stamping plating covers the cut edges inside the box opening, where pre-plated sheet leaves bare metal exposed ★.
5. Can you produce thicker plates for security doors?
Yes. Thickness up to 6.0 mm is covered on the same press line ★.
6. What tolerance can you hold?
±0.05 mm standard; tighter tolerances are discussable depending on the feature and thickness.
7. How is quality controlled?
Opening and hole positions are checked against the drawing during production by 5-10 quality inspectors.
8. What is the lead time?
15-30 working days after sample approval; delivery time depends on order quantity.
9. Do you support ODM and OEM?
Yes. Both ODM and OEM are supported, including production to your sample or drawing with in-house dies.
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