Cold Heading
Head forming
Cold heading production supports stable screw head shape, repeatable dimensions and efficient batch manufacturing.
MANUFACTURING & QUALITY
Controlled Production
Reliable Fastener Quality
LUZE International combines practical production control, in-process inspection and export-ready packing to support stable supply for machine screws, concrete screws, nylon insert lock nuts, PT thread screws and custom fasteners.
Production Control
Production is managed around confirmed standards, drawings, samples and application requirements.
Before bulk production, the team confirms size, material, head type, drive, thread, surface finish, packaging and shipment requirements. During production, key dimensions and visual finish are checked so each batch can meet the confirmed order scope.
Production Capability
Manufacturing steps built for fastener consistency.
From wire preparation to packing, each step focuses on repeatable dimensions, suitable surface treatment and practical export handling.
Thread Rolling
Thread accuracy
Thread rolling and gauge checking help confirm fit, engagement and stable fastening performance.
Surface Finish
Coating selection
Zinc plating, black finish and other coating options are matched to application and purchasing requirements.
Custom Supply
OEM support
Custom fasteners can be produced according to drawings, samples, material needs and packaging details.
Quality Inspection
Inspection points focused on buyer risk.
Quality control checks the practical details that affect assembly, corrosion performance, shipment condition and customer acceptance.
Dimensional QC
Thread and size confirmation
Thread gauges and dimensional checks are used to confirm fit and consistency before packing.
Thread gauge checking
Head, length and drive inspection
Sample confirmation before mass production
Coating QC
Surface and corrosion review
Surface finish is checked visually and, when required, corrosion resistance references can support coating selection.
Surface finish and color review
Salt spray testing references when needed
Coating matched to application environment
Quality Workflow
Clear checkpoints from inquiry to shipment.
The workflow is designed to reduce specification mistakes and keep export orders aligned with confirmed requirements.
01 / SPEC
Confirm details
Standard, drawing, size, material, coating, quantity and packing needs are checked before quoting.
02 / SAMPLE
Review sample
Samples or reference products are confirmed for custom and repeat production orders when required.
03 / PROCESS
Control production
In-process checks focus on forming quality, thread condition and batch consistency.
04 / FINAL QC
Inspect before pack
Finished goods are reviewed for dimensions, surface finish, appearance and order matching.
05 / EXPORT
Pack and ship
Carton, label, pallet and delivery details are prepared according to buyer requirements.
Documentation & Packing
Practical order records for purchasing and receiving teams.
For suitable orders, LUZE International can support product information, packing references and inspection details based on the agreed order scope. Packaging can be arranged for bulk supply, private label cartons or palletized export shipment. Quotations, proforma invoices, commercial invoices, and export documents may be issued under Hebei Chudu Metal Products Co., Ltd., the registered company operating LUZE International.
Product confirmation
Specification, size, material, coating and application notes.
Packing confirmation
Carton quantity, labels, pallet method and private label options.
Inspection references
Dimension, thread and coating checks based on customer needs.
Need OEM Fastening Support?
Send your drawing, standard, size list, material, coating, quantity and packaging requirement. We will review the production scope and prepare a practical quotation.