Machine Screws
Zinc plated steel Phillips machine screws in pan head, flat head and truss head, from #4-40 to 1/4-20 and 3/16 in. to 3 in. long. Machine screws go into a nut or a tapped hole. Choose a size below.
Specifications
- Head styles: Phillips pan, Phillips flat (82 degree countersunk), Phillips truss and Phillips/slotted combo truss
- Sizes: 4-40, 6-32, 8-32, 10-24, 10-32, 12-24 and 1/4-20
- Material: steel, zinc plated
- Thread: fully threaded
Common Uses
- Electrical boxes, switches and panels
- Appliances and electronics
- Cabinet hardware and handles
- Machinery guards and brackets
FAQ
What does a size like 8-32 mean?
The first number is the screw's gauge (diameter) and the second is threads per inch. 8-32 is a #8 screw (0.164 in. diameter) with 32 threads per inch. Fractional sizes like 1/4-20 give the diameter in inches.
What is the difference between 10-24 and 10-32?
Both are #10 screws. 10-24 is coarse thread (UNC) and 10-32 is fine thread (UNF). The nut or tapped hole must match the thread.
How are screw lengths measured?
Flat head (countersunk) screws are measured overall, from the top of the head to the tip. Pan, truss, round and hex washer head screws are measured from under the head to the tip.
Related: Phillips Pan Head | Phillips Flat Head | Phillips Truss Head | Hex Machine Screw Nuts | Keps Nuts | Stainless Steel Screws
Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.