| 选择规格尺寸 点击↓ 3# 4# 5# 6# 8# 10# 12# 1/4 5/16 3/8 | 尺寸单位:
          inch           | 
 | 
| 
 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 
 | 
 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ①,若以小数规定公称直径,应省略小数前和小数点后第四位的零。 ②,表中槽号“R”表示正常插入深度。 ③,螺钉凹槽内壁略带锥度,以保证插入深量规与有镀层螺钉凹槽的配合。为使插入深测量深度适用于有涂镀层的螺钉,制造者在镦头时应为其留出必要的加工余量。 | 
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 | ![四方槽球面圆柱头螺钉 [TABLE 2.2.8-2 III]](http://img.164580.com/upload/48/pic/2023/12/28/1703723015623294031.jpg)  | [美标] ASME B 18.6.3 (H8B-III) - 2024 | 四方槽球面圆柱头螺钉 [TABLE 2.2.8-2 III] Square Recessed Raised Binding Head Machine Screws [TABLE 2.2.8-2 III] | 
| 2 |   | [美标] ASME B 18.6.3 (T36-III) - 2013 | 方槽圆头螺钉 Square Recessed Round Head Screws | 
| 3 |   | [美标] ASME B 18.6.3 (T28-III) - 2013 | 四方槽球面圆柱头螺钉 Square Recessed Raised Cheese Head Machine Screws |