What is the major diameter of a #4-40 UNC thread?
UNC Thread ANSI/ASME B1. 1
| Nominal Diameter | Major Diameter Inch | Major Diameter mm |
|---|---|---|
| #3 – 48 UNC | 0.099 | 2.515 |
| #4 – 40 UNC | 0.112 | 2.845 |
| #5 – 40 UNC | 0.125 | 3.175 |
| #6 – 32 UNC | 0.138 | 3.505 |
What size is 4-40 thread?
External Thread Screw Threads Size Chart
| Screw Size | Class Thread | Major Diameter |
|---|---|---|
| 4-40 | 2A | 0.1112 |
| 4-40 | 3A | 0.1120 |
| 4-48 | 2A | 0.1113 |
| 4-48 | 3A | 0.1120 |
What is the diameter of a 4-40 screw?
4-40 Socket Head Shoulder Screw 0.1250” Long by 0.1245” Diameter.
Is 4-40 UNC or UNF?
So M3. 5 x 0.6 has a 3.5mm diameter and a pitch of 0.6mm.
| Metric | UNC | UNF |
|---|---|---|
| M3 x 0.5 | 4-40 | 4-48 |
| M3.5 x 0.6 | 6-32 | 6-40 |
| M4 x 0.7 | 8-32 | 8-36 |
| M5 x 0.8 | 10-24 | 10-32 |
Is 4 40 a metric or standard?
Fastener Conversion Chart
| Inch Equivalent | Metric Size-PitchISO and IFI Rec. | |
|---|---|---|
| 3- 48 | 3- 56 | M2.5x 0.45 |
| 4- 40 | 4- 48 | M3x .5 |
| 6- 32 | 6- 40 | M3.5x .6 |
| 8- 32 | 8- 36 | M4x .7 |
What does a 4 40 screw mean?
4-40: 0.1120 or 14/125 in diameter; 40 threads per inch.
What is Class 2A thread fit?
Class 2A is a medium fit. Class 3A is a tight fit used where a closed fit between mating parts is required.
What is a 4 40 screw?
4-40: 0.1120 or 14/125 in diameter; 40 threads per inch. 5-40: 0.1250 or 1/8 in diameter; 40 threads per inch. 6-32: 0.1380 or 69/500 in diameter; 32 threads per inch. 8-32: 0.1640 or 41/250 in diameter; 32 threads per inch.
What diameter is a #4 screw?
A 4 gauge screw will have a head that is approximately 4mm wide.
What is a 4-40 screw in metric?
How long is a #4 40 screw?
This #4-40, pan-head screw is 3/8″ (0.375″) long. It is made from steel, is zinc-plated, and comes in packs of 25.