扭力技術資料
Torque Technical Guide
整理 PB Swiss Tools 扭力相關技術頁，保留原始表格數值與中英對照，便於查閱鎖緊扭矩與可換式車刀片固定螺絲的建議最大扭力。
扭力參考數值
Guide Values
公制牙軸螺桿之 M 鎖緊扭矩參考值。
Guide values for the M tightening torques for metric shaft screws.
本表所列鎖緊扭矩所產生的夾持力，理論上約對應螺絲材料降伏點 90% 的負荷；本計算假設螺紋與承壓面的摩擦係數相同。
The tightening torques provide a theoretical clamping force that corresponds to 90% of the screw yield point. The calculation is done under the assumption that the friction coefficient for thread and bearing face are identical.
僅在螺絲或連接元件製造商未提供鎖緊扭矩資料時，方可參考本表。本表僅供參考，不能取代完整且詳細的螺絲設計與強度計算。
The tables should be applied only if no data is available from the manufacturer of the screws or connecting elements. A detailed screw calculation cannot be replaced by the tables.
「降伏點」是指螺絲材料開始產生永久變形的臨界點。超過此範圍後，即使外力解除，螺絲也可能無法完全恢復原狀。
The yield point refers to the point at which the screw material begins to deform permanently. Once this range is exceeded, the screw may not fully return to its original shape after the load is removed.
不同強度等級螺絲之鎖緊扭矩
Tightening torques for different screw grades
公制螺紋，螺紋平均摩擦係數（0.14）
Metric thread, mean friction coefficient in threads (0.14)
公制螺紋 Metric thread
|
一字 Slot
|
十字 Phillips Pozidriv | TX Torx Torx Plus |
內六角 Hexagon
|
Mean friction coefficient | M [Nm] | |||
|---|---|---|---|---|---|---|---|---|---|
| 6.9 | 8.8 | 10.9 | 12.9 | ||||||
| M 1.6 | 0 | 0 | 5 | 1.5 | 0.10 / 0.14 / 0.16 | 0.15 | 0.18 | 0.25 | 0.30 |
| M 1.7 | 0 | 1.5 | 0.10 / 0.14 / 0.16 | 0.19 | 0.22 | 0.31 | 0.38 | ||
| M 2 | 1 | 0 | 6 + 7 | 1.5 | 0.10 / 0.14 / 0.16 | 0.31 | 0.37 | 0.52 | 0.62 |
| M 2.3 | 0.10 / 0.14 / 0.16 | 0.51 | 0.60 | 0.84 | 1.00 | ||||
| M 2.5 | 2 | 1 | 8 + 9 | 2 | 0.10 / 0.14 / 0.16 | 0.64 | 0.76 | 1.07 | 1.28 |
| M 2.6 | 1 | 0.10 / 0.14 / 0.16 | 0.73 | 0.86 | 1.21 | 1.45 | |||
| M 3 | 3 | 1 + 2 | 10 | 2.5 | 0.10 / 0.14 / 0.16 | 1.13 | 1.34 | 1.89 | 2.25 |
| M 3.5 | 4 | 2 | 15 | 0.10 / 0.14 / 0.16 | 1.73 | 2.05 | 2.90 | 3.45 | |
| M 4 | 5 | 2 | 20 | 3 | 0.10 / 0.14 / 0.16 | 2.60 | 3.05 | 4.30 | 5.15 |
| M 5 | 5 | 2 | 25 | 4 | 0.10 / 0.14 / 0.16 | 5.10 | 6.05 | 8.50 | 10.20 |
| M 6 | 6 | 3 | 27 + 30 | 5 | 0.10 / 0.14 / 0.16 | 8.70 | 10.50 | 14.50 | 17.50 |
| M 7 | 3 | 0.10 / 0.14 / 0.16 | 14.50 | 17.00 | 24.00 | 29.00 | |||
可換式車刀片固定螺絲建議最大扭力（Nm）
Recommended maximal torques in Nm for interchangeable blades and PrecisionBits
可換式車刀片固定螺絲與 PrecisionBits 建議最大扭力表。
Table of recommended maximal torques for interchangeable blades and PrecisionBits.
|
Size
|
Torx
|
TorxPlus
|
Phillips
|
Pozidriv
|
Slot-PH
|
Slot/PZ
|
Hexagon
|
Slot
|
Socket
|
|---|---|---|---|---|---|---|---|---|---|
| 00 | 0.4 | 0.16 | |||||||
| 0 | 0.9 | 0.9 | 0.37 | ||||||
| 1 | 3.2 | 3.2 | 3.2 | 3.2 | 0.80 | ||||
| 1.27 | 0.5 | ||||||||
| 1.5 | 0.7 | ||||||||
| 2 | 7.4 | 7.4 | 7.4 | 7.4 | 1.7 | 1.3 | |||
| 2.5 | 3.4 | ||||||||
| 3 | 19.5 | 19.5 | 5.9 | 3.1 | |||||
| 4 | >30 | >30 | 14.4 | 5.7 | |||||
| 5 | 0.4 | >30 | 27.0 | 10.1 | 4.0 | ||||
| 5.5 | 5.2 | ||||||||
| 6 | 0.7 | 0.8 | 30.0 | 23 | 6.7 | ||||
| 7 | 1.2 | 1.5 | >30 | 10.3 | |||||
| 8 | 1.8 | 2.5 | >30 | 14.9 | |||||
| 9 | 2.5 | 3.2 | 20.7 | ||||||
| 10 | 3.2 | 4.1 | >30 | 27.9 | |||||
| 11 | >30 | ||||||||
| 12 | >30 | ||||||||
| 13 | >30 | ||||||||
| 15 | 6.0 | 7.2 | |||||||
| 20 | 9.9 | 12.1 | |||||||
| 25 | 15.3 | 17.6 | |||||||
| 27 | 20.3 | 26.1 | |||||||
| 30 | 28.0 | >30 | |||||||
| 40 | >30 | ||||||||
| 45 | >30 |