Shanghai Summery Industrial Machine Co. , Ltd.
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ASME B18.6.3 Heavy Hex Hd Bolt Steel Material Type H Cross Recess M6 X 30 Size
| product | Engineering machinery screws, agricultural machinery screws, railway engineering bolts, according to customer requirements, a variety of special-shaped screws |
| size | By national standard or according to customer requirements |
| Raw material | Round steel Q235, 45#, 40CR, 35CRMO, 42CRMO, or according to customer needs |
| Surface treatment | Oxidation, electrogalvanizing, hot dip galvanizing, dacromet, nickel plating, chrome plating, copper plating, heat treatment carburizing or according to customer requirements |
| application | Our products are widely used in military, engineering machinery, lathes, agricultural machinery, railways, subways, steel structures, etc. |
| certificate | ISO901:2015, the contract-honoring and credit-keeping unit, the science and technology-oriented small and medium-sized enterprises. |
| standard | GB ,ISO |
| test tools | Tensile testing machine, hardness tester, torque tester, optical instrument, thread ring gauge, plug gauge, etc. |
| tolerance | 0.002-0.004mm |
| major client | Russia, the United States, India, Germany, the United Kingdom, etc. |
| Business Scope | Forging, machining, CNC lathe processing, external grinding machines, punching machines, drilling machine processing product development, etc. |
