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| Parameter information | |
| Brand | Taiwan YFS Fangsheng |
| Color Options | Price shown per piece; M4*5mm black oxide, M4*6mm black oxide, M4*8mm black oxide, M4*10mm black oxide, M4*12mm black oxide, M4*14mm black oxide, M4*15mm black oxide, M4*16mm black oxide, M4*18mm black oxide, M4*20mm black oxide, M4*22mm black oxide, M4*25mm black oxide, M4*30mm with 20mm thread length black oxide, M4*35mm with 20mm thread length black oxide, M4*40mm with 20mm thread length black oxide, M4*45mm with 20mm thread length black oxide, M4*50mm with 20mm thread length black oxide, M4*55mm with 20mm thread length black oxide, M4*60mm with 20mm thread length black oxide, M4*65mm with 20mm thread length black oxide, M4*70mm with 20mm thread length black oxide, M4*75mm with 20mm thread length black oxide, M4*80mm with 20mm thread length black oxide |
| Model | M4 |
| Material | DIN 912 Alloy Steel |
| Product Strength | Grade 12.9 |
| Standard Type | National Standard |
| Head Type | Cup Head |