Thread form refers to the shape of the screw head. There are three common thread forms: Phillips, Slotted, and Torx. Phillips screws have a round head, Slotted screws have a slots along the head, and Torx screws have a star-shaped head.
The cutting edge is the part of the screw that cuts through the material. It is important to choose a screw with a sharp cutting edge so the screw will not strip the material. Some screws have a blunt cutting edge, which can cause the screw to break.
Finally, it is important to choose the correct screw for the task at hand. For example, screws for woodworking should have a Phillips head, a blunt cutting edge, and a wood screwdriver.
5/16-18 x 2 1/4 Flat Head Floorboard Thread Cutting Screws, Type F, (Star – Six Lobe Drive), Black Phosphate Finish, Countersunk, T-40 Drive (Carton: 10pcs) Alloy Steel
| Material | Alloy Steel |
| Drive System | Torx |
| Head Style | Flat |
| Exterior Finish | Black Phosphate,Steel |
| Thread Size | 5/16″-18 |
| Point Style | Type F Point |
Steel Thread Cutting Screw, Zinc Plated Finish, Hex Washer Head, Type 23, 3/8"-16 Thread Size, 1-1/4" Length (Pack of 10)
| Material | Alloy Steel |
| Drive System | External Hex |
| Head Style | Flanged |
| Item Dimensions LxWxH | 1.25 inches |
| Exterior Finish | Zinc |
| Thread Size | 3/8″-16 |
Small Parts-0202 Steel Thread Cutting Screw, Black Oxide Finish, Pan Head, Phillips Drive, Type F, #2-56 Thread Size, 1/8" Length (Pack of 100)
| Material | Alloy Steel |
| Drive System | Phillips |
| Head Style | Pan |
| Item Dimensions LxWxH | 0.13 inches |
| Exterior Finish | Black Oxide |
| Thread Size | #2-56 |
Steel Thread Cutting Screw, Zinc Plated Finish, Serrated Hex Washer Head, Type F, 1/4"-20 Thread Size, 3/4" Length (Pack of 50)
| Material | Alloy Steel |
| Drive System | External Hex |
| Head Style | Flanged |
| Item Dimensions LxWxH | 0.75 inches |
| Exterior Finish | Zinc |
| Thread Size | 1/4″-20 |
ACE PDO Thread Lift – 360R Bidirection Cog/L-Type Blunt (20pcs) – 16 Sizes (18G100/150)
| Exterior Finish | Metal |
| Metal Type | Alloy Steel |
| Brand | AEE Technology |
| Size | 18G100/150 |
Best Thread Forming & Cutting Screws (September 2022)
