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| Standard | DIN, BS, ANSI, JIS, GB and so on |
| Head Type | Flat, Pan, Countersunk, Round Cone, Hex, Round with Washer, etc. |
| Raw Materials | Carbon Steel (C1008-10B21), Aluminum, Steel (35K, 45K), Iron, Stainless Steel (SS201-SS420), Brass, Copper |
| Surface Finish | Zinc, Ni, Brass, Tin, Black, Copper Plated; Hot-working (Grade 6.8 to 12.9) |
| Shank Diameter | 1.5mm - 18mm |
| Process | Cold-Heading, CNC, Stamping, Die-Casting |
| Certifications | ISO9001, ROHS, SGS |
| Lead Time | 15-30 days based on quantity |
| Warranty Policy | 99.9% quality satisfaction, 6-month warranty |





