New Ultimate QM Online Store › 1/4-28" Flange Nut with 1/2" Hex Image 1 of 1 1/4-28" Flange Nut with 1/2" Hex $1.99 1/4-28" Flange Nut with 1/2" Hex. Use only on 1/4-28 Hub Bolt. Hex helps alleviate nuts rounding off. Part# QM376 Add To Cart Added! 1/4-28" Flange Nut with 1/2" Hex. Use only on 1/4-28 Hub Bolt. Hex helps alleviate nuts rounding off. Part# QM376 More Great Products Quick Change Aluminum Engine Gear Hub Long $85.00 Rear Aluminum Hub $31.95 1 1/4" Rear Axle Bearing from $8.99 Titanium 1/4-28 Fine Thread Hex Flange Nut $5.69 Quick Change Aluminum Engine Gear Hub Short $55.00