Page 10 of Apex Fastener Tools by Cooper Power Tools

slotted screw sizes types of heads note when ordering slotted bits please remember that head sizes and slot widths of hardened self tapping and sheet metal screws do not conform to the same specifications as standard wood or machine screws described in the chart below also because of variations in these dimensions among screws from different manufacturers bits should be ordered to head and slot size rather than screw size diameter of head slotted bits 1/4 hex power drive 1/4 hex insert bits ­ limited clearance part number screw size in length mm blade thickness in mm blade width in mm part number screw size length in mm blade thickness in mm blade width body diameter in mm screw sizes flat head oval head wood mach round head wood mach truss head binding head fillister cap mach pan head width of slot 1 2 3 4 5 6 7 8 9 10 12 14 1/4 16 18 5/16 20 24 3/8 .146 .130 .172 .156 .199 .181 .225 .207 .252 .232 .279 .257 .305 .283 .332 .308 .358 .334 .385 .438 .410 .491 .461 .146 .130 .172 .156 .199 .181 .225 .207 .252 .232 .279 .257 .332 .308 .385 .359 .438 .410 .138 .122 .162 .146 .187 .169 .211 .193 .236 .217 .260 .240 .285 .264 .309 .287 .334 .311 .359 .334 .408 .382 .457 .424 .138 .122 .162 .146 .187 .169 .211 .193 .236 .217 .260 .240 .309 .287 .194 .180 .226 .211 .257 .241 .289 .272 .321 .303 .352 .333 .384 .364 .181 .171 .208 .197 .235 .223 .263 .249 .290 .275 .118 .104 .140 .124 .161 .145 .183 .166 .205 .187 .226 .208 .344 .326 .270 .250 .167 .155 .193 .180 .219 .205 .245 .231 .270 .256 .296 .281 .322 .306 .359 .334 .408 .382 .448 .425 .511 .487 .339 .378 .454 .430 .313 .292 .357 .334 .373 .357 .425 .407 .507 .477 .544 .512 .597 .563 .635 .600 .650 .614 .756 .716 .762 .722 .604 .570 .702 .664 .506 .476 .555 .523 .472 .443 .573 .546 .513 .488 .375 .363 .414 .389 .492 .473 .590 .557 .698 .666 .641 .609 .437 .424 .518 .490 .615 .594 .708 .670 .823 .787 .769 .731 .562 .547 .622 .590 .740 .716 .026 .019 .031 .023 .035 .027 .039 .031 .043 .035 .048 .039 .048 .039 .054 .045 .054 .045 .060 .050 .067 .056 .075 .064 .075 .064 .075 .064 .084 .072 .084 .072 .084 .072 .094 .081 .094 .081 445-000x 445-00x 445-0x 445-10x 445-20x 445-30x 445-00-15x 445-0-15x 445-10-15x 445-20-15x 445-30-15x 1f-2r 2f-3r 3f-4r 4f-5r 5f-6r 6f-7r 2f-3r 3f-4r 4f-5r 5f-6r 6f-7r 1 1 1 1 1 1 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 25 25 25 25 25 25 38 38 38 38 38 .021 .025 .030 .034 .036 .038 .028 .032 .034 .036 .038 .53 .64 .76 .86 .91 .97 .71 .81 .86 .91 .97 .125 .140 .154 .185 .216 .248 .138 .154 .185 .216 .248 3.2 3.6 3.9 4.7 5.5 6.3 3.5 3.9 4.7 5.5 6.3 1/4 hex insert bits part number screw size in length mm blade thickness in mm blade width in mm 445-1x 445-2x 445-3x 445-4x 445-1-15x 445-2-15x 445-3-15x 445-4-15x 445-5x 445-6 4f-5r 6f-8r 8f-10r 10f-12r 4f-5r 6f-8r 8f-10r 10f-12r 12f-14r 14f-16r 1 1 1 1 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 25 25 25 25 38 38 38 38 38 38 .034 .040 .042 .046 .034 .040 .042 .046 .050 .055 .86 1.02 1.07 1.17 .86 1.02 1.07 1.17 1.27 1.40 3/16 7/32 1/4 9/32 3/16 7/32 1/4 9/32 5/16 23/64 4.8 5.6 6.4 7.1 4.8 5.6 6.4 7.1 7.9 9.1 5/16 hex insert bits part number screw size in length mm blade thickness in mm blade width in mm 485-1x 485-2x 485-3x 485-4x 485-5x 485-6x 485-7x 4f-5r 6f-8r 8f-10r 10f-12r 12f-14r 14f-16r 16f-18r 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 1/2 1 3/4 38 38 38 38 38 38 45 .034 .040 .042 .046 .050 .055 .060 .86 1.02 1.07 1.17 1.27 1.40 1.52 3/16 7/32 1/4 .296 .328 .328 1/2 4.8 5.6 6.4 7.52 8.33 8.33 12.7 bolded part numbers are industry popular items and are followed by common variations which may vary in price and availability 320-000x 326-000x 323-000x 327-000x 324-000x 325-000x 328-000x 320-00x 326-00x 323-00x 327-00x 324-00x 325-00x 328-00x 320-0x 326-0x 323-0x 327-0x 324-0x 325-0x 328-0x 320-1x 326-1x 323-1x 327-1x 324-1x 325-1x 328-1x 320-20x 326-20x 323-20x 327-20x 324-20x 325-20x 328-20x 320-2x 326-2x 323-2x 327-2x 324-2x 328-2x 320-3x 326-3x 323-3x 327-3x 324-3x 325-3x 328-3x 320-4x 326-4x 323-4x 327-4x 324-4x 325-4x 328-4x 320-5x 326-5x 323-5x 327-5x 324-5x 325-5x 328-5x 320-6x 326-6x 323-6x 327-6x 324-6x 325-6x 328-6x 1f-2r 1f-2r 1f-2r 1f-2r 1f-2r 1f-2r 1f-2r 2f-3r 2f-3r 2f-3r 2f-3r 2f-3r 2f-3r 2f-3r 3f-4r 3f-4r 3f-4r 3f-4r 3f-4r 3f-4r 3f-4r 4f-5r 4f-5r 4f-5r 4f-5r 4f-5r 4f-5r 4f-5r 5f-6r 5f-6r 5f-6r 5f-6r 5f-6r 5f-6r 5f-6r 5f-6r 5f-6r 5f-6r 5f-6r 5f-6r 5f-6r 6f-8r 6f-8r 6f-8r 6f-8r 6f-8r 6f-8r 6f-8r 8f-10r 8f-10r 8f-10r 8f-10r 8f-10r 8f-10r 8f-10r 10f-12r 10f-12r 10f-12r 10f-12r 10f-12r 10f-12r 10f-12r 12f-14r 12f-14r 12f-14r 12f-14r 12f-14r 12f-14r 12f-14r 1 15/16 2 3/4 3 3 1/2 4 5 6 1 15/16 2 3/4 3 3 1/2 4 5 6 1 15/16 2 3/4 3 3 1/2 4 5 6 1 15/16 2 3/4 3 3 1/2 4 5 6 1 15/16 2 3/4 3 3 1/2 4 5 6 1 15/16 2 3/4 3 3 1/2 4 6 1 15/16 2 3/4 3 3 1/2 4 5 6 1 15/16 2 3/4 3 3 1/2 4 5 6 1 15/16 2 3/4 3 3 1/2 4 5 6 1 15/16 2 3/4 3 3 1/2 4 5 6 49 70 76 89 102 127 152 49 70 76 89 102 127 152 49 70 76 89 102 127 152 49 70 76 89 102 127 152 49 70 76 89 102 127 152 49 70 76 89 102 152 49 70 76 89 102 127 152 49 70 76 89 102 127 152 49 70 76 89 102 127 152 49 70 76 89 102 127 152 .022 .022 .022 .022 .022 .022 .022 .026 .026 .026 .026 .026 .026 .026 .030 .030 .030 .030 .030 .030 .030 .034 .034 .034 .034 .034 .034 .034 .036 .036 .036 .036 .036 .036 .036 .036 .036 .036 .036 .036 .036 .038 .038 .038 .038 .038 .038 .038 .042 .042 .042 .042 .042 .042 .042 .046 .046 .046 .046 .046 .046 .046 .050 .050 .050 .050 .050 .050 .050 .56 .56 .56 .56 .56 .56 .56 .66 .66 .66 .66 .66 .66 .66 .76 .76 .76 .76 .76 .76 .76 .86 .86 .86 .86 .86 .86 .86 .91 .91 .91 .91 .91 .91 .91 .91 .91 .91 .91 .91 .91 .97 .97 .97 .97 .97 .97 .97 1.07 1.07 1.07 1.07 1.07 1.07 1.07 1.17 1.17 1.17 1.17 1.17 1.17 1.17 1.27 1.27 1.27 1.27 1.27 1.27 1.27 .122 .122 .122 .122 .122 .122 .122 .134 .134 .134 .134 .134 .134 .134 .151 .151 .151 .151 .151 .151 .151 .187 .187 .187 .187 .187 .187 .187 .215 .215 .215 .215 .215 .215 .215 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .250 .275 .275 .275 .275 .275 .275 .275 .312 .312 .312 .312 .312 .312 .312 .360 .360 .360 .360 .360 .360 .360 3.10 3.10 3.10 3.10 3.10 3.10 3.10 3.40 3.40 3.40 3.40 3.40 3.40 3.40 3.84 3.84 3.84 3.84 3.84 3.84 3.84 4.75 4.75 4.75 4.75 4.75 4.75 4.75 5.46 5.46 5.46 5.46 5.46 5.46 5.46 6.35 6.35 6.35 6.35 6.35 6.35 6.35 6.35 6.35 6.35 6.35 6.35 6.35 6.99 6.99 6.99 6.99 6.99 6.99 6.99 7.92 7.92 7.92 7.92 7.92 7.92 7.92 9.14 9.14 9.14 9.14 9.14 9.14 9.14 6 7

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