Countersink Hole Information



	
    A. FOR MS20426 100 DEGREE CSK HD RIVETS WHERE A FLUSH TO
       UNDERFLUSH HEAD IS REQUIRED:

    RIVET DIAMETER              HOLE DIAMETER AND COUNTERSINK
    --------------              -----------------------------
	.062                   .067 DIA, 100 CSK TO .128 DIA
	.094                   .098 DIA, 100 CSK TO .193 DIA
	.125                   .128 DIA, 100 CSK TO .239 DIA
	.156                   .159 DIA, 100 CSK TO .300 DIA
	.187                   .193 DIA, 100 CSK TO .367 DIA
	.250                   .257 DIA, 100 CSK TO .490 DIA

    B. FOR MS20426 100 DEGREE COUNTERSINK HD RIVET SHAVING IS 
       NECESSARY SO THAT RIVET HEAD WILL NOT APPEAR AFTER 
       PAINT FINISH:                                                       

     RIVET DIAMETER             HOLE DIAMETER AND COUNTERSINK
     --------------             -----------------------------
        .062                   .067 DIA, 100 CSK TO .097 DIA
	.094                   .098 DIA, 100 CSK TO .162 DIA
	.125                   .128 DIA, 100 CSK TO .208 DIA
	.156                   .159 DIA, 100 CSK TO .269 DIA
	.187                   .193 DIA, 100 CSK TO .336 DIA
	.250                   .257 DIA, 100 CSK TO .459 DIA


     C. FOR 82 DEGREE FLAT HD MACHINE SCREWS

       SCREW SIZE               HOLE DIAMETER AND COUNTERSINK
     --------------             -----------------------------
      NO. 2 (.086)             .089 DIA, 82 CSK TO .180 DIA
      NO. 4 (.112)             .116 DIA, 82 CSK TO .234 DIA
      NO. 6 (.138)             .147 DIA, 82 CKS TO .289 DIA
      NO. 8 (.164)             .170 DIA, 82 CSK TO .344 DIA
      NO. 10 (.190)            .196 DIA, 82 CSK TO .398 DIA
      NO. 1/4 (.250)           .258 DIA, 82 CSK TO .522 DIA


     D. FOR 100 DEGREE FLAT HD MACHINE SCREWS

       SCREW SIZE                HOLE DIAMETER AND COUNTERSINK
     --------------              -----------------------------
     NO. 2 (.086)               .089 DIA, 100 CSK TO .180 DIA
     NO. 4 (.112)               .116 DIA, 100 CSK TO .234 DIA
     NO. 6 (.138)               .147 DIA, 100 CKS TO .289 DIA
     NO. 8 (.164)               .170 DIA, 100 CSK TO .344 DIA
     NO. 10 (.190)              .196 DIA, 100 CSK TO .398 DIA
     NO. 1/4 (.250)             .258 DIA, 100 CSK TO .522 DIA