Product Description
Material: A2 Stainless Steel
Thread - BA
Type: Round Slotted Machine Screw
4BA A2 Stainless Steel Round Slotted Machine Screws
4BA round head machine screws manufactured from A2 stainless steel with a traditional slotted drive. Suitable for machinery, electrical equipment, instruments, models and restoration work.
Key Features
- 4BA thread size
- Approximately 3.6mm major diameter
- Approximately 38.5 threads per inch
- A2 stainless steel
- Slotted drive
- Round head
- Approximately 1/4 inch head diameter
- Available in packs from 10 to 1,000
Available Lengths
1/4", 3/8", 1/2", 5/8", 3/4", 1" and 1 1/4".
Length is measured from beneath the round head to the end of the screw.
Standards
BS 57:1951 provides the dimensional reference for BA round head screws. The 4BA thread form and tolerances are covered by BS 93:2008.
BA threads are not interchangeable with metric threads, even where the diameters appear similar.
Useful Links
- 4BA A2 stainless cheese head machine screws
- 4BA A2 stainless countersunk machine screws
- BA A2 stainless raised countersunk machine screws
- 4BA zinc plated round head machine screws
Specifications are intended as a guide. Confirm the thread and dimensions before installation.
s 
| A | B | C | D | E |
| 4BA | 1 1/4" | 0.25" | 0.10" | 38.5 |
| 4BA | 1" | 0.25" | 0.10" | 38.5 |
| 4BA | 1/2" | 0.25" | 0.10" | 38.5 |
| 4BA | 1/4" | 0.25" | 0.10" | 38.5 |
| 4BA | 3/4" | 0.25" | 0.10" | 38.5 |
| 4BA | 3/8" | 0.25" | 0.10" | 38.5 |
| 4BA | 5/8" | 0.25" | 0.10" | 38.5 |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.
