Black Carbon Steel Hex Bolt, High Quality Hexagon Bolts, High Stretch Structure Bolt, Hex Bolts, Zinc Plating Hexagon Head Bolts Standard: DIN Size: M8-M36 Surface treatment: Black Color: Black Style: Black Color Hex Bolt Type: Hex Bolts Material: 45#steel, 35Crmo Black Carbon Steel Hex Bolt Used: Mechanical upper connection From screws and anchors to hex […]
Square Head Carriage Bolt DIN603, Stainless Steel Carriage Bolt and Nut
Color: Black Oxide/Galvanized
Standard: DIN GB ISO JIS BA ANSI
Grade: 4.8 8.8 A2-70 A4-80
Certification: ISO9001, SGS, CTI, ROHS
Used: building industry machinery
Non-standards: OEM is available if you provide drawings or samples.
we confirm our goods will satisfy your request of 100%, After sales service: we will follow up goods for every customer and help solve problem after sales.
We are profession in fastener products more than 10 years
Square Head Carriage Bolt DIN603 Service:
All the services/ High quality service
Heading/ washer-assembly/ Threading/ Secondary machine/ heat treatment/ plating/ Anti-slipping/ Baking/ QA/ Package/ Shipping
Hardness test, torque test, salt spray endurance test, mechanical sizes test,certification and etc as per your need.
Incoming quality control → Process Quality Control → Final Quality Control → Pre-shipment Quality Control
Carriage bolts are measured from directly under the head. Sheet metal screw measurement depends upon the type of screw you are using. Countersunk screws (Flat or Oval head) are measured by overall length. Pan Head, truss head, and Hex Head screws are measured from under the head.
Under the precondition of quality assurance,we provide the price more competitive than the average level in market.
Experienced R&D department and advanced testing equipment to make sure our products meet customer’s requirement,expect to set up long term cooperation with every customer.
WINDO METAL mainly produces grade 8.8, grade 10.9, grade 12.9 high-strength bolts, nuts, large hexagon head steel structure connection pairs(available for processing);coal mine support accessories, railway, building accessories; national standard(GB), German standard (DIN), American standard (ANSI), British standard (BS), Japanese standard (JIS), International standard (ISO) and other standards, various special-shaped parts, non-standard parts(Drawing / samples) and other serious products product. The products are widely used in railway, bridge, construction, machinery, metallurgy, military industry, aerospace, automobile and other fields.