Steel lock nuts (half nuts) ideal for fixing rod ends available UNF, right and left hand threads. Left hand threaded nuts are distinguished from right hand threaded by notching on the hex.
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Steel Half Nuts
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Metric and Imperial Threads
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Left and Right Handed Threads
Right Hand
Left Hand
Size UNF
Hex Size
SJNR3
SJNL3
10-32
3/8
SJNR4
SJNL3
1/4-28
7/16
SJNR5
SJNL5
5/16-24
1/2
SJNR6
SJNL6
3/8-24
9/16
SJNR7
SJNL7
7/16-20
11/16
SJNR8
SJNL8
1/2-20
3/4
SJNR10
SJNL10
5/8-18
15/16
SJNR12
SJNL12
3/4-16
1-1/8
SJNR14
SJNL14
7/8-14
1-9/32*
*Hex size may vary depending on availability of material
Right Hand
Left Hand
Thread Size
Hex Size
SJNR5M
SJNL5M
M5 X 0.8
3/8
SJNR6M
SJNL6M
M6 X 1.0
7/16
SJNR8M
SJNL8M
M8 X 1.25
1/2
SJNR10M
SJNL10M
M10 X 1.5
9/16
SJNR12M
SJNL12M
M12 X 1.75
11/16
SJNR14M
SJNL14M
M14 X 2.0
3/4
SJNR16M
SJNL16M
M16 X 2.0
15/16
SJNR18M
SJNL18M
M18 X 1.5
1 3/32
SJNR20M
SJNL20M
M20 X 1.5
1 3/32
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