General Purpose Plugs for Unified/Straight Threads fit Unified/Straight threads and fittings. These threaded plugs are slotted with a 12-point head for tightening with a screwdriver, socket or wrench.
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Item #

Item Name

Length

Flange Outside Diameter

To Fit Standard Thread

N/A General Purpose Plug for Unified Fine (UNF)/Straight 7/16-20 Size Thread N/A 0.34 in8.6 mm N/A 0.660 in16.8 mm N/A 7/16-20
N/A General Purpose Plug for Unified Fine (UNF)/Straight 7/16-24 Size Thread N/A 0.34 in8.6 mm N/A 0.660 in16.8 mm N/A 7/16-24
N/A General Purpose Plug for Unified Fine (UNF)/Straight 1/2-20 Size Thread N/A 0.34 in8.6 mm N/A 0.73 in18.5 mm N/A 1/2-20
N/A General Purpose Plug for Unified Fine (UNF)/Straight 9/16-18 Size Thread N/A 0.36 in9.1 mm N/A 0.800 in20.3 mm N/A 9/16-18
N/A General Purpose Plug for Unified Fine (UNF)/Straight 5/8-18 Size Thread N/A 0.36 in9.1 mm N/A 0.87 in22.1 mm N/A 5/8-18
N/A General Purpose Plug for Unified Fine (UNF)/Straight 3/4-16 Size Thread N/A 0.41 in10.4 mm N/A 1.020 in25.9 mm N/A 3/4-16
N/A General Purpose Plug for Unified Fine (UNF)/Straight 7/8-14 Size Thread N/A 0.53 in13.5 mm N/A 1.160 in29.5 mm N/A 7/8-14
N/A General Purpose Plug for Unified Fine (UNF)/Straight 1 1/16-12 Size Thread N/A 0.61 in15.5 mm N/A 1.45 in36.8 mm N/A 1 1/16-12
N/A General Purpose Plug for Unified Fine (UNF)/Straight 1 5/16-12 Size Thread N/A 0.61 in15.5 mm N/A 1.74 in44.2 mm N/A 1 5/16-12
N/A General Purpose Plug for Unified Fine (UNF)/Straight 1 5/8-12 Size Thread N/A 0.61 in15.5 mm N/A 2.17 in55.1 mm N/A 1 5/8-12
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