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Product's Name:Maching parts-VIS screw 1, Material: X30Cr13 or 2Cr13; 2, heat treatment 3.precision cnc machining parts
Product's Name:Maching parts-VIS screw
Technical Requirements: 1, Material: X30Cr13 or 2Cr13; 2, heat treatment: quenching HB250-280; 3, no note by internal thread tolerance class 6H, external thread tolerance class 6g level by the Executive; 4, did not note the implementation of tolerance levels by GB/T1804-m; 5, the size of a small box labeled side of the importance of size; 6, sharp, blunt down C0.2-0.3; 7, the surface scratch free, no foreign body inside 8,OEM and customer's design
| tolerance grade | GB/T1804 class size limit deviations of linear values | |||||||
| 0.5~3 | >3~6 | >6~30 | >30~120 | >120~400 | >400~1000 | >1000~2000 | >2000~4000 | |
| middle-m | ±0.1 | ±0.1 | ±0.2 | ±0.3 | ±0.5 | ±0.8 | ±1.2 | ±2 |
| Note: The special requirements of tolerance marked by "middle-m" implementation | ||||||||
SUS 304 Steel CNC Machining parts-VIS screw