| Bolts Pitch: | 0.81P |
| Threads Per Inch: | 31.4 |
| Bolts Diameter: | 0.185" |
| Bolts Material: | A4 Stainless Steel |
| Finish: | Stainless Steel |
| Head Type: | Socket Cap |
| Thread Type: | Imperial - BA |
| Length Under Head: | 1/2" |
| Tapping Drill Size: | 4mm |
BA thread (British association) is a rarely used thread that was once commonly found on small instruments and models. Still sparingly used in some industries such as metering equipment manufacturing and optical equipment.