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1/2-20 Thin Nylon Insert Jam Lock Nuts Stainless Steel 18-8 Qty 10

UPC: 842176163116
Thread Size: 1/2-20
Outside Diameter String 3/4"
Fastener Thread Count (TPI): 20
Drive Size: 3/4"
Material Type: Stainless Steel 18-8
Thread Type: Inch
Thread Style: Fine
Thread Direction: Right Hand
Drive Style: External Hex

A jam nut is a low profile type of nut. It is used as a type of locknut, where it is "jammed" up against a standard nut to lock the two in place. It is also used in situations where a standardnut would not fit.