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 QM Front Hub Spacer Kit $24.99 ARC Front Hub With Shield and Hardware from $42.95 Smoker Ratchet One Way Hub 7075 $215.00 Titanium 1/4-28 Fine Thread Hex Flange Nut $5.69 Tri-Flow Aerosol Can 12 ounce $22.50