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| ①,長(zhǎng)度 L 小于等于螺紋長(zhǎng)度 b 加上無(wú)螺紋距離 S 的斜頭螺栓,應(yīng)全螺紋。從頭部承載面(在頭部中部高度處測(cè)量)到螺紋最后一條劃痕的距離不得超過(guò)S。從頭部承載面(在頭部中部高度處測(cè)量)到第一條完整(全形)螺紋的距離(使用非倒角的 GO 螺紋環(huán)規(guī)手動(dòng)裝配至螺紋允許的最大位置進(jìn)行測(cè)量)不得超過(guò) S 加上 2.5倍螺距 的長(zhǎng)度。 ②,螺紋系列:四方斜頭螺栓僅提供統(tǒng)一粗牙 (UNC) 螺紋。 ③,螺紋公稱長(zhǎng)度b為參考尺寸,僅用于計(jì)算。當(dāng)螺栓公稱長(zhǎng)度 L ≤ 6 in 時(shí),b=2d+0.25;當(dāng)L>6in時(shí),b=2d+0.5 。 | 
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                                      類似標(biāo)準(zhǔn)及供貨信息
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| 3 |   | [國(guó)標(biāo)] GB /T 35 - 1988 | 小方頭螺栓 Small Square Head Bolts 供應(yīng)商(4) | 
| 4 |   | [國(guó)標(biāo)] GB 8 - 1988 | 方頭螺栓 C級(jí) Square Head Bolts - Product Grade C 供應(yīng)商(5) | 
| 5 |   | [國(guó)標(biāo)] GB 8 - 1976 | 方頭螺栓 C級(jí) (粗制) Square Head Bolts - Product Grade C (Black) 供應(yīng)商(5) | 
| 6 |   | [德標(biāo)] DIN 21346 - 1989 | 木軸導(dǎo)向用方頭螺栓 Square Head Bolts for Shaft Guides | 
| 7 |   | [日標(biāo)] JIS E 1107 - 2008 | 魚尾板用四方螺栓 Fish Plate Bolt Square Head | 
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| 9 | ![方頭螺栓(中等精度) [Table 1-2]](http://img.164580.com/upload/48/pic/2024/06/06/1717652527200643792.jpg)  | [日標(biāo)] JIS B 1182 (T1-2) - 1995 | 方頭螺栓(中等精度) [Table 1-2] Square Head Bolts [Table 1-2] | 
| 10 | ![方頭螺栓(粗制) [Table 1-3]](http://img.164580.com/upload/48/pic/2024/06/06/1717652527200643792.jpg)  | [日標(biāo)] JIS B 1182 (T1-3) - 1995 | 方頭螺栓(粗制) [Table 1-3] Square Head Bolts [Table 1-3] | 
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| 12 |   | [汽標(biāo)代號(hào)] Q 194B | 小方頭螺栓 Small Square Head Bolts | 
| 13 | ![方頭螺栓 [Table 1]](http://img.164580.com/upload/48/pic/2024/06/06/1717652527200643792.jpg)  | [美標(biāo)] ASME/ANSI B 18.2.1 (T1) - 1996 | 方頭螺栓 [Table 1] Square Bolts [Table 1] 供應(yīng)商(1) | 
| 14 |   | [意大利] UNI 5729 - 1965 | 帶方螺母的寬方頭螺栓和螺釘 米制螺紋 C級(jí) Large Square Head Bolts and Bolts with Square Nut - Metric Coarse Thread - Finish C | 
| 15 |   | [法國(guó)] NF E 25-116 - 1983 | 方頭螺栓 A級(jí) B級(jí) Square Head Screws - Product Grades A and B | 
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| 17 |   | [法國(guó)] NF E 25-118 - 1983 | 方頭螺栓 C級(jí) Square Head screws - Product grade C | 
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| 22 |   | [臺(tái)灣] CNS 4699 - 1982 | 木導(dǎo)板用方頭螺栓 Square Head Bolts for Wooden Guide Plates | 
| 23 |   | [臺(tái)灣] CNS 3134 - 1981 | 精制方頭螺栓 Square Head Bolts (Finished) | 
| 24 |   | [臺(tái)灣] CNS 3135 - 1981 | 次精制方頭螺栓 Square Head Bolts (Semi-Finished) | 
| 25 |   | [臺(tái)灣] CNS 3136 - 1981 | 一般用方頭螺栓 Square Head Bolts (Regular) | 
| 26 |   | [臺(tái)灣] CNS 3137 - 1981 | 大方頭螺栓(一般用) Large Square Head Bolts (Regular) | 
| 27 |   | [俄標(biāo)] GOST 21249 (-1) - 1996 | 方頭螺栓 - 1型 - 半沉頭 Blunt Bolts for General Purpose - Basic Parameters and Dimensions | 
| 28 |   | [俄標(biāo)] GOST 21249 (-2) - 1996 | 方頭螺栓 - 2型 - 沉頭 Blunt Bolts for General Purpose - Basic Parameters and Dimensions | 
| 29 | ![方頭螺栓 [Table 1] (ASTM A307 / A354 / A394)](http://img.164580.com/upload/48/pic/2024/06/06/1717652527200643792.jpg)  | [美標(biāo)] ASME B 18.2.1 (T1) - 2012 | 方頭螺栓 [Table 1] (ASTM A307 / A354 / A394) Square Head Bolts [Table 1] (ASTM A307 / A354 / A394) 供應(yīng)商(1) | 
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| 31 | ![四方斜頭螺栓 [Table 4]](http://img.164580.com/upload/48/pic/2025/02/12/1739323526794376356.jpg)  | [美標(biāo)] ASME B 18.2.1 (T4) - 2010 | 四方斜頭螺栓 [Table 4] Askew Head Bolts [Table 4] 供應(yīng)商(1) | 
| 32 |   | [美標(biāo)] ASME B 18.2.3.10M - 1996 | 米制四方頭螺栓 Metric Square Head Bolts |