10-9X4 Square Recess Round Washer Head Deep Thread Wood Screw 2/3 Thread Black Oxide (Pack Qty 1,000) BC-1064DQRWDB

The deeper thread design offers greater resistance to pull-out forces. The head offers a greater bearing surface than a countersunk design. Used to attach surface-mounted door hinges or lock hasps into dense woods or when attaching two pieces of wo C1022 case-hardened steel Rockwell C 45 minimimYou may also like 1/2-13X1 3/4 Carriage Bolt Grade 8 Fully Threaded Zinc Yellow (Pack Qty 325) BC-5028C8.