This is a hex bolt with molded flange collar. No need for a washer with this bolt. This part comes in bags of 25. Call today or submit a quote request form online for a quote. Part: 250PU-100 1/4" x 1" Hex Flange Bolt , Material: Glass-reinforced Polyurethane. Thread Shear: 110 lbs, Shank Shear: 210 lbs, Shoulder Length: Full Thread, Torque: 10 in/lbs, Includes: Pack of 25 Bolts.