Product Description These stainless steel carriage bolts are designed to fasten a wooden face to either a wood or metal frame. Ncaa Oregon Ducks Memory Wire Snowflake Bracelet Square underside of the head is self-locking to eliminate the need for a driving tool Flat, smooth head eliminates the need for a washer Hillman 3490 1/4-20 by 3/4-Inch Stainless Steel Carriage Bolt, 10-Pack ; Item number. 396263267142 ; Brand. Grade 1/4 ; Item model number. 3490 ; Accurate... 1/4 Carriage Bolt RJX 10 Pcs 1/1.5/2/2.5/3/4 Inch Stainless Steel Spring Hinge For RC Hanger Bolt Stainless Bolts feature a 1/4-20 Coarse screw thread and measure 3/4 long. G3/4 Hfs-20 3/4 Inch AC220V Automatic Water Flow Switch Liquid Controller Valve Fluid Sensor With Stainless Steel Paddle Features a 1/4-20 Coarse thread type These carriage bolts come plated in zinc for moderate corrosion resistance. The flat-styled head allows for a smooth exterior finish. They are used in wood connections utilizing the square neck under the round head which will sit into the hole to prevent the head from turning.