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Heyco® Nylon Liquid Tight Threaded Plugs Torque chart

NPT threads require thread sealant
Plug Size
Torque
1/4 NPT
20in-lbs
PG 7
M12
3/8 NPT
38in-lbs
PG 9
M16
1/2 NPT
45in-lbs
PG 13.5
M20
3/4 NPT
80in-lbs
PG 21
1 NPT
100in-lbs
PG 29
M32
1-1/4 NPT
170in-lbs
PG 36
M40

Due to variations in thread tapers, materials, manufacturing tolerances and thread sealants, torque values are provided as a guideline only. We recommend you determine the actual torque empirically, testing for your specific application.

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