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ASTM F468 Hex Cap Screws, ASTM F568M Heavy Hex Bolts, ASTM F568M Threaded Rods Manufacturer in Mumbai, India.
Production, Supply, Stock Range of ASTM F568 / F568M Bolts
Thread Diameters : M6 to M36
Threads Configuration : ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Certification : Dual Certified As per ASTM & ASME Codes
Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners
ASTM F568 is standard Specification for metric size bolts, screws and studs that are used in general engineering applications. It is officially titled: Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners. It defines mechanical properties for fasteners that range from M1.6 to 100 in diameter.
This specification covers chemical and mechanical requirements for nine property classes of carbon and alloy steel externally threaded metric fasteners in nominal thread diameters M1.6 through M100 suited for use in general engineering applications.
Grades Material Description
| Grade 4.6 | Low or medium carbon steel |
| Grade 4.8 | Low or medium carbon steel; fully or partially annealed |
| Grade 5.8 | Low or medium carbon steel; Cold worked |
| Grade 8.8 | Medium Carbon Boron Steel ; Quenched & Tempered |
| Low carbon Grade 8.8 | Low Carbon Boron Steel ; Quenched & Tempered |
| Grade 8.8.3 | Atmospheric corrosion resistant steel ; Quench and Tempered |
| Grade 9.8 | Medium Carbon Boron Steel ; Quenched & Tempered |
| Low carbon Grade 9.8 | Low Carbon Boron Steel ; Quenched & Tempered |
| Grade 10.9 | Quenched & Tempered ; Alloy Steel |
| Low Carbon Grade 10.9 | Low Carbon Boron Steel ; Quenched & Tempered |
| Grade 10.9.3 | Atmospheric corrosion resistant steel ; Quench and Tempered |
| Grade 12.9 | Quenched & Tempered ; Alloy Steel |
Mechanical Prperties
| Grades | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
| Class 4.6 | 5–100 | 225 | 240 | 400 | B67–95 |
| Class 4.8 | 1.6–16 | 310 | 340 | 420 | B71–95 |
| Class 5.8 | 5–24 | 380 | 420 | 520 | B82–95 |
| Class 8.8 | 0.050% | 600 | 660 | 830 | C23–34 |
| Low carbon Class 8.8 | 17–72 | 600 | 660 | 830 | C23–34 |
| Class 8.8.3 | 17–72 | 600 | 660 | 830 | C23–34 |
| Class 9.8 | 1.6–16 | 650 | 720 | 900 | C27–36 |
| Low carbon Class 9.8 | 1.6–16 | 650 | 720 | 900 | C27–36 |
| Class 10.9 | 5–100 | 830 | 940 | 1040 | C33–39 |
| Low Carbon Class 10.9 | 5–100 | 830 | 940 | 1040 | C33–39 |
| Class 10.9.3 | 5–100 | 830 | 940 | 1040 | C33–39 |
| Class 12.9 | 1.6–100 | 970 | 1100 | 1220 | C38–44 |
ASTM F568 / F568M Bolts Manufacturer, SF568 Bolts Supplier in India- ASME, DIN, AS, BS
Tarq Bolt is a leading manufacturer and exporter of astm f568 bolts in India. Our inventory includes astm sf568 bolts in many grades including DIN933 DIN 931 ANSI/ASME B18.2.1 bolts are readily available in all standard sizes and schedules.
