ASTM A490M Bolt Nut Washer, Construction Bolts & Nuts, ASTM A490 M12 to M36 Carbon Steel Hex Bolts, Construction Bolt, Class 4.8 8.8 10.9 M20 A36/ A307 /A325 High tensile Bolts and nuts, Astm A490M Hexagonal head bolt, Hex head Bolt China Supplier ASTM A490M Bolt Nut Washer Features: Product name Bolt Nut Washer Specification […]
Carbon Steel Square Nut
Material: Steel#45, Carbon steel, Brass, Copper.
Size: M2-M30,as per your requirements.
Finish: Zinc-plated, Nickel-plated, Dacromet, Black oxide,zinc-nickel alloy coating
Standard: ISO, GB, BS, DIN, ANSI,JIS, Non-standard
Custom design: OEM or ODM Carbon Steel Square Nut are available
From raw materials to end product delivery, it has a strict control program. Accurate completion is done about:
Standard parts: wiring- roughing – annealing- pickling – drawing – heading(cold forging or hot forging) – threading(rolling) – heat treatment -surface treatment –cleaning –inspecting-packaging
Customization parts: heading, stamping or casting-wire cut edm machine -CNC (machining center) -grinder threading(rolling) – heat treatment -surface treatment –cleaning –inspecting-packaging.
We have strict quality control from producing to delivery. Our company had strong technology support. We have cultivated a group of managers who are familiar with product quality, good at modern concept of management.
Inspect all the materials when arrived, ensure they will be catch up customers’s requirements.
Inspect the semi-finished goods.
Inspect the finished nut products.
Final inspection when pack up all the goods.if there is not any problems for this step,our QC will issue the inspection report and release this products.
DOWEDO’s main products: hex head bolt DIN933, Steel structure with high strength large hexagon head bolts GB1228, nuts,T type head bolt, Pan head bolts, square head bolts, countersunk head bolts, set all kinds of non-standard bolts.
DOWEDO has strong production capacity and sells professional standard bolt and fasteners. our products accord with the international quality system. Our company offers high quality bolts ,nuts,fasteners for industrial fields, such as automobile, building, communication,electron,energy, electrical home appliances and furniture etc.
The bright surface of stainless steel can maintain 10-20 years.