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Hex Nuts from Hex Bar
A nut is a short piece of hexagon bar with a tapped hole through it. Drill and tap the end of the bar, saw off one nut's height, and repeat: the bar's flats are already the spanner size. The example is M6 to ISO 4032: 10 mm across the flats, 5.2 mm high, tapped M6 x 1.0 from a 5.0 mm hole.
The notebook gives the bar, drill and height for M5 to M10.
初学者
1 hour for 10 nuts
说明
1
1
Sizes
Sizes
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2
2
Square the end
Square the end
Clamp the 10 mm A/F hex bar in the vise, saw the end square and file it flat.
此步骤所需材料：
低碳钢六角棒0.2 米所需工具：
台虎钳
钢锯
锉刀套装3
3
Drill the tap hole
Drill the tap hole
Clamp the bar upright in the machine vice under the drill press. Centre-punch the middle of the end and drill a 5.0 mm hole 20 mm deep, with a drop of cutting oil.
此步骤所需材料：
切削油5 毫升所需工具：
台钻
机用虎钳
钻头套装
中心冲
安全眼镜4
4
Chamfer the hole
Chamfer the hole
Countersink the hole's mouth lightly, just past the thread's outer diameter.
所需工具：
锪孔钻头套装台钻5
5
Tap M6
Tap M6
Start the M6 tap square in the tap wrench with oil. Turn half a turn in, a quarter back to break the chip, to the bottom of the hole.
此步骤所需材料：
切削油5 毫升所需工具：
丝锥板牙套装
丝锥扳手台虎钳6
6
Saw off a nut
Saw off a nut
Mark 5.2 mm from the end plus the saw's width, and saw it off square. File the cut face flat until the caliper reads 5.2 mm.
所需工具：
划针
蓝色显示剂钢锯锉刀套装
6 英寸数显卡尺7
7
Chamfer and deburr
Chamfer and deburr
File a small chamfer on the corners of both faces and deburr the thread's ends.
所需工具：
锉刀套装
去毛刺刀8
8
Test and repeat
Test and repeat
Run the nut down an M6 bolt by hand. Re-face the bar's end and repeat; one 20 mm hole gives three nuts.
所需工具：
六角螺栓组合9
9
Troubleshooting
Troubleshooting
Nut making troubleshooting.
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