1/4"-20 Serrated Flange Hex Lock Nuts Hexagon Nuts, 304 Stainless Steel 18-8, Full Thread, Coarse Thread UNC, Pack of 25 1/4"-20 (25 pcs) Flange Nuts auspowers_batchone 1/8" Shank

1/8" Shank

It is also resistant to nicks

commercial grade sealant

Resin bond provides heat resistance

1-3/4" across the flats

1/4"-20 Serrated Flange Hex Lock Nuts Hexagon Nuts, 304 Stainless Steel 18-8, Full Thread, Coarse Thread UNC, Pack of 25 1/4"-20 (25 pcs) Flange Nuts auspowers_batchone 1/8" Shank1 4" 20 Serrated Flange Hex Lock Nuts Hexagon Nuts, 304 Stainless Steel 18 8, Full Thread, Coarse Thread UNC, Pack of 25 SIZE: 1 4" 20 Packaged Included: 25 PCS Flange nuts have a washer like base to distribute pressure over a greater surface area and ensure the fastener stay tight. Flange nuts have flat and serrated designs. Serrated flange nuts are fabricated with a built in serrated washer that resists loosening due to vibration. They are commonly