选择规格尺寸 点击↓ 2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16 3/8 |
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①,头部边缘为倒圆或平的。 ②,小于等于长度L的螺钉,为清根沉头型。 ③,机械螺钉材料 1)非热处理低碳钢,如1006~1022 硬度HRB69-100 2)当机械螺钉规定硬度时,应采用中低碳钢制造,如含硼或不含硼1018~1038 硬度HRC25-38 ④,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,长螺钉的最小螺纹长度为 1.5 in 。 ⑤,R代表正常插入深度,S代表短(浅)插入深度 |
1 | [美标] ASME/ANSI B 18.6.3 (T40) - 2013 |
AB型和ABR型自攻螺纹和末端 [Table 40] Dimensions of Threads and Points for Type AB and Type ABR Thread-forming Screws |
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2 | [美标] ASME/ANSI B 18.6.3 (T41) - 2013 |
B型 BP型自攻螺钉螺纹和末端 [Table 41] Dimensions of Threads and Points for Type B and BP Thread-Forming Tapping Screws |
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3 | [美标] ASME/ANSI B 18.6.3 (T42) - 2013 |
A型自攻螺钉螺纹和末端 [Table 42] Dimensions of Threads and Points for Type A Thread-Forming Tapping Screws |
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4 | [美标] ASME/ANSI B 18.6.3 (T43) - 2013 |
BF型 BT型 自切自攻螺钉螺纹和末端 [Table 43] Dimensions of Threads and Points for Types BF and BT Thread-Cutting Tapping Screws |
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5 | [美标] ASME/ANSI B 18.6.3 (T44) - 2013 |
D, F, G, T 型自攻螺钉 螺纹和末端 [Table 44] Dimensions of Threads and Points for Type D, F, G, and T Thread-Cutting Tapping Screws |
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6 | [美标] ASME/ANSI B 18.6.3 (T45) - 2013 |
自挤自攻【TRS型】螺纹和末端 [Table 45] Dimensions of Type TRS Tapping Screws |
类似标准及供货信息
7 | [美标] ASME/ANSI B 18.6.3 - 2010 |
80°四方槽沉头螺钉 [Table 2] 80° Square Recessed Countersunk Head Screws 供应商(1) |
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8 | [美标] ASME/ANSI B 18.6.7M - 1998 |
米制四方槽沉头螺钉Table5 Metric square slot countersunk head screws 供应商(1) |
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9 | [美标] ASME B 18.6.3 (H1B-III) - 2024 |
四方槽沉头螺钉 (ASTM F837, F468) Square Recessed Countersunk Head Screws (ASTM F837, F468) 供应商(1) |
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10 | [美标] ASME B 18.6.3 (H3B-III) - 2024 |
方槽82°沉头清根机械螺钉 Undercut 82-deg Square Recessed Countersunk Head Screws, Type III |
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11 | [美标] ASME B 18.6.3 (T10-III) - 2013 |
方槽82°沉头清根机械螺钉 Undercut 82-deg Square Recessed Countersunk Head Screws, Type III |