Metric Heavy Hex Head Structural Bolt, ASTM A325 A490 Heavy Hex Bolts, Hot dip galvanized 8.8 heavy hex bolt for electric equipment Finish: ZINC, Plain Material: Steel, carbon steel Standard: DIN FINISHED: Black,ZINC HDG,Dacroment. PLAIN SIZE: M45,M4,M12 M72,M56 M3.5 LENGTH: 60MM-300MM GRADE: 4.8,6.8 8.8 10.9 TYPE: hexagon bolt customized Certificate: ISO9001 Metric Heavy Hex Head […]
Hex Bolts and Nuts Screw Fasteners
Material: carbon steel, alloy steel, stainless steel
Color: Plain, ZincPlated (Clear/ Blue/ Yellow/ Black), black oxide, H.D.G
Standard: DIN GB ISO JIS BA ANSI
Thread: unc, unf, metric thread
Used: building industry machinery
Certification: ISO9001, SGS, CTI, ROHS
Package: Carton Pallet
With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in Mold, Electricity, Construction, Solar energy, Automotive, Machinery & Equipment and other industries.
Our company has purchased steel from several large steel groups, whose steel have good mechanical properties and stability of chemical component. It keeps the hex bolts and nuts screw fasteners to be of high strength.
Structural Bolts are a specialized heavy type of hex bolt intended for use in large structures, such as buildings and bridges. This bolt is designed to withstand the loads of steel-to-steel structural connections. They contain a flat, washer-faced bearing surface and a chamfered thread point. Plain finish, or bare metal, may or may not have a coating of light oil to resist corrosion.
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.