滾花高頭螺釘(摘自GB 834-88)
螺紋規格為M1.6~M10的滾花高頭螺釘。
標記示例:
螺紋規格d=M5、公稱長度l=20mm、性能等級為4.8級、不經表面處理的滾花高頭螺釘的標記:
螺釘 GB 834 M5×20
螺紋規格為M1.6~M10的滾花高頭螺釘:
螺紋規格 d | dk (滾花前) | K | K1 | K2 | R ≥ | r min | re≈ | C | d1 | d2 | l | ||
max | min | max | min | ||||||||||
M1.6 | 7 | 6.78 | 4.7 | 4.52 | 2 | 0.8 | 1.25 | 0.1 | 2.24 | 0.2 | 4 | 3.6 | 2~8 |
M2 | 8 | 7.78 | 5 | 4.82 | 2 | 1 | 1.25 | 0.1 | 2.8 | 0.2 | 4.5 | 3.8 | 2.5~10 |
M2.5 | 9 | 8.78 | 5.5 | 5.32 | 2.2 | 1 | 1.5 | 0.1 | 3.5 | 0.2 | 5 | 4.4 | 3~12 |
M3 | 11 | 10.37 | 7 | 6.78 | 2.8 | 1.2 | 2 | 0.1 | 4.2 | 0.3 | 6 | 5.2 | 4~16 |
M4 | 12 | 11.73 | 8 | 7.78 | 3 | 1.5 | 2 | 0.2 | 5.6 | 0.3 | 8 | 6.4 | 5~16 |
M5 | 16 | 15.73 | 10 | 9.78 | 4 | 2 | 2.5 | 0.2 | 7 | 0.5 | 10 | 9 | 6~20 |
M6 | 20 | 19.67 | 12 | 11.57 | 5 | 2.5 | 3 | 0.25 | 8.4 | 0.5 | 12 | 11 | 8~25 |
M8 | 24 | 23.67 | 16 | 15.57 | 6 | 3 | 4 | 0.4 | 11.2 | 0.8 | 16 | 13 | 10~30 |
M10 | 30 | 29.67 | 20 | 19.48 | 8 | 3.8 | 5 | 0.4 | 14 | 0.8 | 20 | 17.5 | 12~35 |
l的範圍:
公稱 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | (14) | 16 | 20 | 25 | 30 | 35 |
min | 1.80 | 2.30 | 2.80 | 3.76 | 4.76 | 5.76 | 7.71 | 9.71 | 11.65 | 13.65 | 15.65 | 19.58 | 24.58 | 29.58 | 34.50 |
max | 2.20 | 2.70 | 3.20 | 4.24 | 5.24 | 6.24 | 8.29 | 10.29 | 12.35 | 14.35 | 16.35 | 20.42 | 25.42 | 30.42 | 35.50 |