Factory Wholesale Black Phosphate Fine Thread Drywall Screw Self Tapping Screw Black Drywall Screw

Our range of product:

BOLTS: hex bolts, heavy hex bolts, hex flange bolts, carriage bolts, wheel bolts, stud bolts, square head bolts, T bolts, eye bolts, U bolts, hook bolts

NUTS: hex nuts, heavy hex nuts, hex flange nuts, nylon insert lock nuts, cap nuts, slotted nuts, rivet nut

WASHERS: flat washers, spring washers, lock washers

SCREWS: machine screws, self tapping screws, set screws, hex socket head cap screws, wood screws, self drilling screws

We have Magnetic Powder Detector, Material Testing Machine, Metallographic Microscope, such testing instruments, guarantee product high quality and beautiful appearance.The quality control is strictly performed from buying raw materials in warehouse to different machining procession and to final packing.

First, we have our own High-precision Digital Machining center for mould making in special Mould Workshop, excellent mould make product beautiful appearance and its size accurately.

The second, we adopt blasting procession, removing Oxidation surface, make the surface to be bright and clean and uniform and beautiful.

Kunshan Zhonggu Precision Hardware Co., Ltd founded in 2006, is a set design, development, production, sale as a whole, professional production and operation of various types of industrial fasteners.
Company provides: National standard(GB), British standard(BS), German standard(DIN), American standard (ANSI) IFI), Japanese standard(JIS), International standard(ISO) and other standard fasteners, also can be made according to the requirement of customers.
The company product sales areas: mainland China/Europe/America/Japan/southeast Asia region.
The company's quality management system: ISO9001:2000 certification, ROHS certification, CE certification, etc.
The company's products usage: Automotive/Mould/Mechanical/Hydraulic/Wind Energy/PV/Elec-
tronic/Construction, etc.

Q:How can I get a quotation?

A:Kindly provide us your details request (item No, style, logo, size, material, surface treatment, quantity etc.) the more detailed the better, leave us an inquiry or email to us and we will response promptly!

Q:How to get a free sample?

A:We recommend you work with Alibaba Trade Assurance, itis very convenient And T/T, PayPal, Western Union.. are all available.

Q:What's the process of order?

A:Send us Inquiry →get quotation →payment done →open mold and make samples→
deliver you samples or send you pictures of samples for approval→mass production.

Q:When can l expect the customized product to be finished?

A:Sample:7-10 working days (Standard).
Bulk order:20-25 working days(Standard).
If you have any other questions, please feel free to contact us!