part number: AN363-420 AN363-420 SELF-LOCKING NUT (HIGH TEMPERATURE) Self-locking nut For temperatures up to 550° F Material: Steel Thread: 1/4-20 Dimensions: A: 7/16 inch B: 5/16 inch MSRP: Now: $2.50 Add to Cart part number: AN363-420 AN363-420 SELF-LOCKING NUT (HIGH TEMPERATURE) MSRP: Now: $2.50 Add to Cart