无槽或开槽六角头以及大六角头螺钉 (ASTM F837, F468) ASME B 18.6.3 (H9A) - 2024
| 选择规格尺寸 点击↓ 1# 2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16 3/8 7/16 1/2 |
尺寸单位:
inch |
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| ①,螺杆直径ds应不小于2A级螺纹最小中径，并不大于公称（基本）螺纹大径。 ②,凹穴六角头允许所有边缘和棱角略有圆钝，但支承面圆周直径不小于最小对边宽度的90%。 ③,除非用户有要求，六角头机械螺钉不需要开槽。 ④,凹穴型凹穴底部以下的槽深度应不小于规定最小槽深的1/3。 ⑤,除非客户另有要求，一般应提供标准六角或大六角凹穴型，开槽与否由制造者自行选择。 ⑥,机械螺钉的螺纹长度： 1）螺纹规格≤5#: 公称长度≤3倍公称直径的应为满扣产品，头下螺纹肩距≤1倍螺距。 公称长度＞3倍公称直径到 1-1/8 in 的，允许头下肩距最大不超过2倍螺距。 若无其他规定，长螺钉的最小螺纹长度为1 in 。 2）螺纹规格≥6#: 公称长度≤3倍公称直径的应为满扣产品，头下螺纹肩距≤1倍螺距。 公称长度＞3倍公称直径到 2 in 的，允许头下螺纹肩距最大不超过2倍螺距。 若无其他规定，长螺钉最小螺纹长度为 1.5 in 。 |
长度公差
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.
标称螺钉尺寸的长度公差 | |||
标称螺钉长度 | 螺纹规格 | ||
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 |
类似标准及供货信息
| 1 |
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[国标] GB /T 29.2 - 1988 |
十字槽凹穴六角头螺栓 Cross recessed hexagon bolts with indentation 供应商(4) |
| 2 |
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[国标] GB /T 29.1 - 2013 |
六角头带槽螺栓 Hexagon Bolts With Slot On Head |
| 3 |
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[国标] GB /T 29.1 - 1988 |
六角头头部带槽螺栓 A级和B级 Hexagon Bolts With Slot On Head - Product A and B |
| 4 |
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[国标] GB 29 - 1976 |
开槽六角螺栓 Slotted hexagon bolts |
| 5 |
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[法国] NF E 25-137 - 1986 |
金属用螺钉 开槽六角头螺钉 A级 符号HS Slotted Hexagon Head Screws For Metal, Product Grade A, Symbol HS |
| 6 |
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[英标] BS 1981 - 1991 |
开槽六角头螺钉 [Table 16] Plain and Slotted Hexagon Head Screws [Table 16] |
| 7 |
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[台湾] CNS 4702 - 1982 |
开槽六角头防脱出杆螺栓 Slotted Hexagon Head Bolts With Reduced Body |
| 8 |
![无槽或开槽六角头以及大六角头螺钉 [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 |
无槽或开槽六角头以及大六角头螺钉 [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 |
开槽六角头螺栓 Hexagon Bolts With Recess |
| 10 |
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[航空] HB 8260 - 2002 |
开槽六角头螺栓 Hexagon Bolts With Recess |