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[China]
Trade Verify
Address: Room 901,Building 1,Jinhuizhibo Square,No.199 Yanhu West Road,Haiyan,Zhejiang,China
Contact name:Gu Juan Ping
Haiyan Hager Fastener Co., Ltd. |
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Verified Suppliers
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Stud bolt ASTM A193 B8/B8M "Thread to Thread" Class 2A c/w 2 Heavy
Hex Nut ASTM A194 Gr.8/8M Class 2B
When low-temperature requirements are specified for Grade 7 nuts, the Charpy test procedures and requirements as defined in Specification A320/A320M for Grade L7 shall apply. When low-temperature requirements are specified for Grade 7M nuts, the Charpy test procedures and requirements as defined in Specification A320/A320M for Grade L7M shall apply. Charpy specimens may be taken from a sample nut, nut blank, or may be taken from separate test samples of the same heat processed through heat treatment with the nuts for which the test is to apply. Impact testing is not required when the bar stock or nut is smaller than 5⁄8 in. [16 mm] in diameter.
An “L” shall be added to the marking, as shown in Table 7,
for nuts so tested.
Strain hardened Grades 8, 8C, 8T, 8M, 8F, 8P, 8N, or 8MN nuts may
be specified. When Supplementary Require-ment S1 is invoked in the
order, nuts shall be machined from cold drawn bars or shall be cold
forged to shape. No subse-quent heat treatment shall be performed
on the nuts. Nuts made in accordance with this requirement shall be
proof load
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| Nominal | Thread | Stress Area, | All Types | All Types |
| of Grade 8 | of Grade 8 | |||
| Size, mm | Pitch | mm2 | ||
| (strain hardened) | (strain hardened) | |||
| Heavy HexC | HexB | |||
| M12 | 1.75 | 84.3 | 72.5 | 64.1 |
| M14 | 2.0 | 115.0 | 98.9 | 87.4 |
| M16 | 2.0 | 157.0 | 135.0 | 119.3 |
| M20 | 2.5 | 245.0 | 210.9 | 186.2 |
| M22 | 2.5 | 303.0 | 240.9 | 209.0 |
| M24 | 3.0 | 353.0 | 280.6 | 243.5 |
| M27 | 3.0 | 459.0 | 332.7 | 300.6 |
| M30 | 3.5 | 561.0 | 406.7 | 367.5 |
| M36 | 4.0 | 817.0 | 563.7 | 506.5 |
