Yes, you would just need to adjust the B&G Brass Pin-Cone Nozzle (AV-210) (23083602) to smallest stream for crack and crevice treatments.
The thread size for the B G Pin-Cone Nozzle (AV-210) (23083602) is 11/16 -16 NS (National Size). The standard garden hose thread is 3/4 inch (19 mm) diameter straight (non-tapered) thread with a pitch of 11.5 threads per inch (TPI).
The thread size for the B&G Pin-Cone Nozzle (AV-210) (23083602) is 11/16 -16 NS (National Size).
Please contact one of our representatives at 1-866-581-7378 Mon - Fri 9am-5pm to troubleshoot. We need to know more about what sprayer model and wand you have to assist. You may also contact B&G directly at 800-544-881 directly to troubleshoot. It is possible, the B&G Brass Pin-Cone Nozzle (AV-210) (23083602) may just need to be tightened up or adjusted. B&G does offer a 1 year warranty on manufacturer defects.
You may use the Troubleshooting Guide also for B&G Sprayer Manual here