無槽或開槽六角頭以及大六角頭螺釘 (ASTM F837, F468) ASME B 18.6.3 (H9A) - 2024
| 選擇規格尺寸 點擊↓ 1# 2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16 3/8 7/16 1/2 |
尺寸單位:
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| ①,螺杆直徑ds應不小于2A級螺紋最小中徑，并不大于公稱（基本）螺紋大徑。 ②,凹穴六角頭允許所有邊緣和棱角略有圓鈍，但支承面圓周直徑不小于最小對邊寬度的90%。 ③,除非用戶有要求，六角頭機械螺釘不需要開槽。 ④,凹穴型凹穴底部以下的槽深度應不小于規定最小槽深的1/3。 ⑤,除非客戶另有要求，一般應提供标準六角或大六角凹穴型，開槽與否由制造者自行選擇。 ⑥,機械螺釘的螺紋長度： 1）螺紋規格≤5#: 公稱長度≤3倍公稱直徑的應為滿扣產品，頭下螺紋肩距≤1倍螺距。 公稱長度＞3倍公稱直徑到 1-1/8 in 的，允許頭下肩距最大不超過2倍螺距。 若無其他規定，長螺釘的最小螺紋長度為1 in 。 2）螺紋規格≥6#: 公稱長度≤3倍公稱直徑的應為滿扣產品，頭下螺紋肩距≤1倍螺距。 公稱長度＞3倍公稱直徑到 2 in 的，允許頭下螺紋肩距最大不超過2倍螺距。 若無其他規定，長螺釘最小螺紋長度為 1.5 in 。 |
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.
标稱螺釘尺寸的長度公差 | |||
标稱螺釘長度 | 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 |
類似标準及供貨信息
| 1 |
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[國标] GB /T 29.2 - 1988 |
十字槽凹穴六角頭螺栓 Cross recessed hexagon bolts with indentation 供應商(4) |
| 2 |
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[國标] GB /T 29.1 - 2013 |
六角頭帶槽螺栓 Hexagon Bolts With Slot On Head |
| 3 |
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[國标] GB /T 29.1 - 1988 |
六角頭頭部帶槽螺栓 A級和B級 Hexagon Bolts With Slot On Head - Product A and B |
| 4 |
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[國标] GB 29 - 1976 |
開槽六角螺栓 Slotted hexagon bolts |
| 5 |
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[法國] NF E 25-137 - 1986 |
金屬用螺釘 開槽六角頭螺釘 A級 符号HS Slotted Hexagon Head Screws For Metal, Product Grade A, Symbol HS |
| 6 |
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[英标] BS 1981 - 1991 |
開槽六角頭螺釘 [Table 16] Plain and Slotted Hexagon Head Screws [Table 16] |
| 7 |
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[台灣] CNS 4702 - 1982 |
開槽六角頭防脫出杆螺栓 Slotted Hexagon Head Bolts With Reduced Body |
| 8 |
![無槽或開槽六角頭以及大六角頭螺釘 [Table 29] (ASTM F837, F468)](http://img.164580.com/upload/48/pic/2024/03/14/1710396827144363115.jpg)
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[美标] ASME B 18.6.3 (T29) - 2013 |
無槽或開槽六角頭以及大六角頭螺釘 [Table 29] (ASTM F837, F468) Plain (Unslotted) and Slotted Regular and Large Hex Head Screws [Table 29] (ASTM F837, F468) |
| 9 |
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[航空] HB 8035 - 2002 |
開槽六角頭螺栓 Hexagon Bolts With Recess |
| 10 |
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[航空] HB 8260 - 2002 |
開槽六角頭螺栓 Hexagon Bolts With Recess |