四方槽大扁頭螺釘 [TABLE 2.2.7-2 III] ASME B 18.6.3 (H7B-III) - 2024
| 選擇規格尺寸 點擊↓ 2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16 3/8 |
尺寸單位:
inch |
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| ①,若以小數規定公稱直徑，應省略小數前和小數點后第四位的零。 ②,表中的“R”表示正常插入深入。“S”表示短（淺）插入深度。 ③,方槽內壁略帶錐度，以保證插入深量規與有鍍層螺釘凹槽的配合。為使插入深測量深度適用于有涂鍍層的螺釘，制造者在生產（鐓頭）時，應為其留出必要的加工余量。 |
長度公差
Machine screws can be made to any length, but they are generally produced in fractional length increments of 1/16 in. for screws up to 5/8 in. long, 1/8 in. for screws over 5/8 in. through 1-1/2 in. long, and 1/4 in. for screws over 1-1/2 in. long.
標稱螺釘尺寸的長度公差 | |||
標稱螺釘長度 | 螺紋規格 | ||
0000~00 | 0~12 | 1/4~3/4 | |
≤1/2 | -0.01 | -0.02 | -0.03 |
＞1/2,≤1 | -0.02 | -0.03 | -0.03 |
＞1,≤2 | / | -0.06 | -0.06 |
＞2 | / | -0.09 | -0.09 |
類似標準及供貨信息
| 1 |
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[美標] ASME B 18.6.3 (T25-III) - 2013 |
四方槽大扁頭螺釘 Square Recessed Mushroom Head Screws |