Recess/Drive | Name | Description |
| Hex | Use any Hex driver or open wrench. |
| Hex-Washer | Uses standard hex driver. (Per Size) |
| Phillips | Conventional crossed recess designed to provide good control in driving. |
| Phillips-Slotted combination | Accepts both Phillips and standard blade screwdrivers. |
| Pozi Driv® | Accepts Pozi-Driv® Tool (or Phillips). Good engagement. |
| Slotted | Accepts standard blade screwdriver. |
| Slotted Hex Combination | Accepts standard blade screwdriver or wrench. |
| Slotted Hex Washer Combination | Accepts standard blade screwdriver or wrench. Offers greater bearing area. |
| Combo Square | Combo square accepts standard blade screwdriver or square drive. |
| Square | Square drive increases productivity with excellent torque transmission and resistance to cam-out. |
Image | Style Designation | Description |
| 1 (D) | Thread cutting screw with a single flute for general use. Produces a fine standard machine thread. |
| 17 | Thread-cutting screw. Good For wood, some plastics, and metals. |
| 23 (T) | Fine-thread cutting screw offers a maximum thread-cutting area and excellent chip clearing ability. |
| 25 (BT) | Coarse-thread cutting screw offers a maximum thread-cutting area and excellent chip clearing. |
| A | All purpose tapping screw. Can be used in metals, wood and plastics. |
| AB | All purpose tapping screw. More threads per inch. |
| B | Good for thicker sheet metal applications |
| F | Thread cutting screw with machine screw thread having multi-cutting edges. |
| Machine Screw | Machine screw - standard thread |
| Cupped Socket | A special cup section supplied on the end of the threaded member having a depression in the end to reduce the area in contact with the surface, which increases its holding and locking power under pressure. |
| Plain Sheared End | The ends of a fastener cut approximately flat and square to the axis, without chamfer. |
| Self Drilling - Drill Point | With special drilling points-lengths-diameters that will drill through ¼" metal. Eliminates all hole preparation - drills faster than a drill. No punching, drilling or tapping required. Reduces die costs. |
Image | Style Designation | Description |
| Binding | Popular in electrical applications. The undercut design forms a lip to hold wires into place while tightening. |
| Fillister | Used for counterbored holes. Smaller diameter than round head, but higher and with deeper recess for driving. |
| Flat 82i | Used where flush surface is desired. |
| Flat 100i | Use for thin sheet metal, soft plastic, and other applications where a wider head would be more desirable. |
| Flat Undercut | Standard 820 flat head truncated to facilitate use of shorter screws. Permits flush surface in thin work stock. |
| Hex Indented | More economical than standard hex, with similar performance. |
| Hex Washer | Conventional hex head with integrated washer to provide a greater bearing area. |
| Oval | For countersunk applications. Similar to flat head but rounded to improve appearance. |
| Pan | Offers a low profile with a larger diameter and high outer circumference for strength. |
| Round | General purpose head. High crown has deep recess but diameter is smaller than pan. |
| Truss | Similar to round head but with lower profile and larger diameter. |
| Allen Cap
Head | The Allen fastener head shape is used on remote controlled model cars in areas where secure holding of parts is required. The heads are smaller than the rest of the head shapes in this article and are usually hardened. |
