IFI Coupling Nuts-With Sighthole
With Sighthole - Plain & Zinc
3/8-16x1"1/8-9/16 Hex
1/2-13x1"1/2-3/4 Hex
5/8-11x1"7/8-15/16 Hex
3/4-10x2"1/4-1"1/8 Hex
1"-8x3"-1"1/2 Hex
Items listed above are also available without the sighthole upon request. Call for pricing on special sizes!