RECOIL BRAND PRODUCTS - RECOIL - (Version JPG) - Page n° 29 - PDF Catalogue | Technical Documentation

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Tap, Threading tool, Wire thread insert, Bolt extractor, Threaded insert

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Drill,Tapping and Installation Depths

Unified Thread Series

Specifications for Drilling,Tapping and Installation Depths

UNC

THREAD SIZE

BASIC LENGTH OF INSERT IN TERMS OF NOMINAL DIAMETER OF SCREWD 1 1/2 D 2D

2 1/2D

T 1

2-56

0.086 0.068 0.166 0.148 0.129 0.111 0.209 0.191 0.172 0.154 0.252 0.234 0.215 0.197 0.295 0.277 0.258 0.240 0.338 0.320

3-48

0.099 0.078 0.193 0.172 0.148 0.127 0.242 0.221 0.198 0.177 0.292 0.271 0.248 0.227 0.342 0.321 0.297 0.276 0.391 0.370

4-40

0.112 0.087 0.224 0.199 0.168 0.143 0.28

0.255 0.224 0.199 0.336 0.311 0.280 0.255 0.392 0.367 0.336 0.311 0.448 0.423

5-40

0.125 0.100 0.237 0.212 0.187 0.162 0.300 0.275 0.250 0.225 0.362 0.337 0.312 0.287 0.425 0.400 0.375 0.350 0.487 0.462

6-32

0.138 0.107 0.279 0.247 0.207 0.176 0.348 0.316 0.276 0.245 0.417 0.385 0.345 0.314 0.486 0.454 0.414 0.383 0.555 0.523

8-32

0.164 0.133 0.305 0.273 0.246 0.215 0.387 0.355 0.328 0.297 0.469 0.437 0.410 0.379 0.551 0.519 0.492 0.461 0.633 0.601

10-24 0.190 0.148 0.377 0.336 0.285 0.243 0.472 0.431 0.380 0.338 0.567 0.526 0.475 0.433 0.662 0.621 0.570 0.528 0.757 0.716

12-24

0.216 0.174 0.404 0.362 0.324 0.282 0.512 0.470 0.432 0.390 0.620 0.578 0.540 0.498 0.727 0.686 0.648 0.606 0.836 0.794

1/4-20 0.250 0.200 0.475 0.425 0.375 0.325 0.600 0.550 0.500 0.450 0.725 0.675 0.625 0.575 0.850 0.800 0.750 0.700 0.975 0.925 5/16-18 0.312 0.257 0.562 0.507 0.469 0.413 0.719 0.663 0.625 0.569 0.875 0.819 0.781 0.726 1.031 0.976 0.937 0.882 1.187 1.132 3/8-16 0.375 0.312 0.656 0.594 0.562 0.500 0.844 0.781 0.750 0.687 1.031 0.969 0.937 0.875 1.219 1.156 1.125 1.062 1.406 1.344

7/16-14 0.437 0.366 0.759 0.687 0.656 0.585 0.978 0.906 0.875 0.804 1.196

1.125 1.094 1.022 1.415 1.343 1.312 1.241 1.634 1.562

1/2-13 0.500 0.423 0.846 0.769 0.750 0.673 1.096 1.019 1.000 0.923 1.346

1.269 1.250 1.173 1.596 1.519 1.500 1.423 1.846 1.769

9/16-12 0.562 0.479 0.937 0.854 0.844 0.760 1.219 1.135 1.125 1.042 1.500 1.417 1.406 1.323 1.781 1.698 1.687 1.604 2.062 1.979 5/8-11 0.625 0.534 1.034 0.943 0.937 0.846 1.347 1.256 1.250 1.159 1.659 1.568 1.562 1.471 1.972 1.881 1.875 1.784 2.284 2.193

3/4-10 0.750 0.650 1.200 1.100 1.125 1.025 1.575 1.475 1.500 1.400 1.950

1.850 1.875 1.775 2.325 2.225 2.250 2.150 2.700 2.600

7/8-9

0.875 0.764 1.375 1.264 1.312 1.201 1.812 1.701 1.750 1.639 2.250 2.139 2.187 2.076 2.687 2.576 2.625 2.514 3.125 3.014

1.000 0.875 1.563 1.437 1.500 1.375 2.062 1.937 2.000 1.875 2.562 2.437 2.500 2.375 3.062 2.937 3.000 2.875 3.562 3.437

1 1/8-7 1.125 0.982 1.768 1.625 1.687 1.545 2.330 2.187 2.250 2.107 2.893 2.750 2.812 2.670 3.455 3.312 3.375 3.232 4.018 3.875

1 1/4-7 1.250 1.107 1.893 1.750 1.875 1.732 2.518 2.375 2.500 2.357 3.143

3.000 3.125 2.982 3.768 3.625 3.750 3.607 4.393 4.250

1 3/8-6 1.375 1.208 2.125 1.958 2.062 1.896 2.812 2.646 2.750 2.583 3.500

3.333 3.437 3.270 4.187 4.021 4.125 3.958 4.875 4.708

1 1/2-6 1.500 1.333 2.250 1.083 2.250 2.083 3.000 2.833 3.000 2.833 3.750 3.583 3.750 3.583 4.500 4.333 4.500 4.333 5.250 5.083

Through Hole

Drilling Depth: The minimum drilling depth "S"allows for one pitch chip clearance between the tip of the tap and the bottom of the drilled hole."S"minimum allows for tap clearance, the maximum amount of insert set-down and the countersink. Where a spiral pointed tapis used, the drill depths shown should be increased to allow for chip clearance.

Fitted Insert: R = Maximum length of engaged portion of screw when tang is removed. Q = of plug tap. S ^Minimum drill depth - excluding point.

Remove Tang

Minimum full tapped thread length. T = Minimum tapping depth - including 3 1/2 threads

RECOIL BRAND PRODUCTS - RECOIL - #29

Tap, Threading tool, Wire thread insert, Bolt extractor, Threaded insert