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ISO 7380
HNF
HN201707132
SS 304 Hexagon Socket Button Head Machine Screw ISO 7380
We are a professional manufacturer of machine screws. We have capabilities to manufacture machine screws in length of 1/4" to 8" and diameters of up to M2 to M6.3. Materials of low carbon steel from C1022. We are able to achieve and fulfill customers' demands. If you have interests in our machine screws or more questions, please don't hesitate to contact us. ASME standards specify a variety of "Machine Screws" in diameters ranging up to 0.75 in (19.05 mm). These fasteners are often used with nuts as well as driven into tapped holes. They might be considered a screw or a bolt based on the Machinery's Handbook distinction. In practice, they tend to be mostly available in smaller sizes and the smaller sizes are referred to as screws or less ambiguously as machine screws, although some kinds of machine screw can be referred to as stove bolts.
| GRADE | CHEMICAL COMPOSITION1(%MAXIMA UNLESS STATED) | NOTES | ALTERNATIVE NAMES | ||||||||
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | |||
| A1 | 0.12 | 1 | 6.5 | 0.2 | 0.15/0.35 | 16-19 | 0.7 | 5-10 | 1.75-2.25 | 2 3 4 | 303S31,303S42,1.4305 |
| A2 | 0.1 | 1 | 2 | 0.05 | 0.03 | 15-20 | 5 | 8-19 | 4 | 6 7 | 304,394S17(BS3111),1.4301,1.4567 |
| A3 | 0.08 | 1 | 2 | 0.045 | 0.03 | 17-19 | 5 | 9-12 | 1 | 8 | 321,1.4541,347,1.4550 |
| A4 | 0.08 | 1 | 2 | 0.045 | 0.03 | 16-18.5 | 2-3 | 10-15 | 4 | 7 9 | 316,1.4401,1.4578 |
| A5 | 0.08 | 1 | 2 | 0.045 | 0.03 | 16-18.5 | 2-3 | 10.5-14 | 1 | 8 9 | 316Ti，1.4571，316Cb，1.4580 |
| C1 | 0.09-0.15 | 1 | 1 | 0.05 | 0.03 | 11.5-14 | - | 1 | - | 9 | 410，1.4006 |
| C3 | 0.17-0.25 | 1 | 1 | 0.04 | 0.03 | 16-18 | - | 1.5-2.5 | - | | 431，1.4057 |
| C4 | 0.08-0.15 | 1 | 1.5 | 0.06 | 0.15-0.35 | 12-14 | 0.8 | 1 | | 2 9 | 416，1.4005 |
| F1 | 0.12 | 1 | 1 | 0.04 | 0.03 | 15-18 | 10 | 1 | | 11 12 | 430，1.4016，430Ti，1.4520，430Cb，1.4511 |
Application:
Construction. To fasten two parts of things.
Environmental protection equipment, medical equipment, communications equipment, electric power facilities, electronic products, food machinery, petrochemical industry, ship assembly, pump valve, pipe, building curtain wall, open places, etc.
SS 304 Hexagon Socket Button Head Machine Screw ISO 7380
We are a professional manufacturer of machine screws. We have capabilities to manufacture machine screws in length of 1/4" to 8" and diameters of up to M2 to M6.3. Materials of low carbon steel from C1022. We are able to achieve and fulfill customers' demands. If you have interests in our machine screws or more questions, please don't hesitate to contact us. ASME standards specify a variety of "Machine Screws" in diameters ranging up to 0.75 in (19.05 mm). These fasteners are often used with nuts as well as driven into tapped holes. They might be considered a screw or a bolt based on the Machinery's Handbook distinction. In practice, they tend to be mostly available in smaller sizes and the smaller sizes are referred to as screws or less ambiguously as machine screws, although some kinds of machine screw can be referred to as stove bolts.
| GRADE | CHEMICAL COMPOSITION1(%MAXIMA UNLESS STATED) | NOTES | ALTERNATIVE NAMES | ||||||||
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | |||
| A1 | 0.12 | 1 | 6.5 | 0.2 | 0.15/0.35 | 16-19 | 0.7 | 5-10 | 1.75-2.25 | 2 3 4 | 303S31,303S42,1.4305 |
| A2 | 0.1 | 1 | 2 | 0.05 | 0.03 | 15-20 | 5 | 8-19 | 4 | 6 7 | 304,394S17(BS3111),1.4301,1.4567 |
| A3 | 0.08 | 1 | 2 | 0.045 | 0.03 | 17-19 | 5 | 9-12 | 1 | 8 | 321,1.4541,347,1.4550 |
| A4 | 0.08 | 1 | 2 | 0.045 | 0.03 | 16-18.5 | 2-3 | 10-15 | 4 | 7 9 | 316,1.4401,1.4578 |
| A5 | 0.08 | 1 | 2 | 0.045 | 0.03 | 16-18.5 | 2-3 | 10.5-14 | 1 | 8 9 | 316Ti，1.4571，316Cb，1.4580 |
| C1 | 0.09-0.15 | 1 | 1 | 0.05 | 0.03 | 11.5-14 | - | 1 | - | 9 | 410，1.4006 |
| C3 | 0.17-0.25 | 1 | 1 | 0.04 | 0.03 | 16-18 | - | 1.5-2.5 | - | | 431，1.4057 |
| C4 | 0.08-0.15 | 1 | 1.5 | 0.06 | 0.15-0.35 | 12-14 | 0.8 | 1 | | 2 9 | 416，1.4005 |
| F1 | 0.12 | 1 | 1 | 0.04 | 0.03 | 15-18 | 10 | 1 | | 11 12 | 430，1.4016，430Ti，1.4520，430Cb，1.4511 |
Application:
Construction. To fasten two parts of things.
Environmental protection equipment, medical equipment, communications equipment, electric power facilities, electronic products, food machinery, petrochemical industry, ship assembly, pump valve, pipe, building curtain wall, open places, etc.
