| HOME | THE COMPANY | GENERAL INFO | |
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| SECTION 2: DIRECTORY OF GENERAL INFORMATION |
| | GENERAL | APPLICATION INDEX | FASTENER INFORMATION GUIDE | TECH INFO FOR SELF DRILLING SCREWS | PLATING | FAQ | ASTM | PROBLEM SOLVER SHEET | PRODUCT CERTIFICATIONS | |
| THREAD TYPES | |||
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| TYPE A - SHARP POINT/ MARKER® | TYPE AB - SHARP POINT / TYPE B THREADS | TYPE F | TYPE 17 |
A thread forming screw for use in thin metal .015 to .050 thick. Used with drilled, punched or nested holes in sheet metal, resin impregnated plywood, among others. |
A thread forming screw combining locating point of Type A with thread size and pitch of Type B. Normal limitations of Type B apply. |
A thread cutting screw with machine screw thread and blunt tapered point, having multi-cutting edges and chip cavities. For heavy gauge sheet metal, lead, and others. |
A thread cutting screw for wood with a coarse tapping screw thread and a special long sharp point fluted to capture chips. |
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| PARTICLE BOARD | SELF-DRILLING TYPE - DARTS® | TYPE B - BLUNT POINT | HIGH-LOW - SHARP POINT / MARKER® II |
| Reduced body diameter causing less distortion of material. Greater pitch angle of threads resists pull out. The increased depth & wider spacing of threads minimizes crumbling of material. | Innovative design allows drill and tap functions to be done in one easy, quick operation. Metal up to .500 thickness can be drilled and fastened easily. | A thread forming screw for use in heavier metal .050 to .200 thick. For light and heavy sheet metal, nonferrous castings, plastics, impregnated plywoods, among others. | High-Low screws have 30° and 60° included thread angles. Ideal for plastic, particle board, masonite and wood. |
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| THREAD FORMING / TAPTITE® / SWAGEFORM® | MACHINE SCREWS | HIGH-LOW - BLUNT POINT | SELF PIERCING / MARKER® |
Precision thread forming screws that form mating threads to produce tight fastening assemblies. Triangular-modified thread body. Low driving torques and high holding power. |
Used in a pre-tapped hole or with a nut. | Same qualities as sharp point. | Thread forming screw with the ability to pierce its own hole in 20 ga. Steel or less, form a sleeve and tap mating threads. Sharp point angle of 30°. Can be single or double lead thread. |
HOW TO MEASURE A SCREW |
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| FLAT | ROUND | OVAL | HEX | PAN | TRUSS |
Copyright 2001, Compass International, Inc. |
