Bewise Inc. www.tool-tool.com Reference source from the internet.
表1.公制普通牙 表2.公制細牙 表3.美制普通牙
規 格 | 最小 尺寸 | 最大尺寸 | | 規 格 | 最小 尺寸 | 最大尺寸 | | 規 格 | 最小 尺寸 | 最大尺寸 | |||||||||
1級 | 2級 | 3級 | | 1級 | 2級 | 3級 | | 3B | 2B | 1B | |||||||||
5H | 6H | 7H | | 5H | 6H | 7H | | No. 4-40UNC | 2.16 | 2.39 | 2.39 | ||||||||
M3 × 0.5 | 2.46 | 2.57 | 2.6 | 2.64 | | M4 × 0.5 | 3.46 | 3.57 | 3.6 | 3.64 | | No. 5-40UNC | 2.49 | 2.7 | 2.7 | ||||
M3.5 × 0.6 | 2.85 | 2.98 | 3.01 | 3.05 | | M5 × 0.5 | 4.46 | 4.57 | 4.6 | 4.64 | | No. 6-32UNC | 2.64 | 2.9 | 2.9 | ||||
M4 × 0.7 | 3.24 | 3.38 | 3.42 | 3.47 | | M6 × 0.75 | 5.19 | 5.34 | 5.38 | 5.42 | | No. 8-32UNC | 3.3 | 3.53 | 3.53 | ||||
M4.5 × 0.75 | 3.69 | 3.84 | 3.88 | 3.92 | | M7 × 0.75 | 6.19 | 6.34 | 6.38 | 6.42 | | No.10-24UNC | 3.68 | 3.95 | 3.96 | ||||
M5 × 0.8 | 4.13 | 4.29 | 4.33 | 4.38 | | M8 × 0.75 | 7.19 | 7.34 | 7.38 | 7.42 | | No.12-24UNC | 4.34 | 4.55 | 4.6 | ||||
M6 × 1 | 4.92 | 5.11 | 5.15 | 5.22 | | M9 × 0.75 | 8.19 | 8.34 | 8.38 | 8.42 | | 1/4-20UNC | 4.98 | 5.25 | 5.26 | ||||
M7 × 1 | 5.92 | 6.11 |