Chelsea capscrew 378447-4 or 3784474 is a socket-head cap screw used as PTO and driveline mounting hardware. The shank code Sh .312 18 indicates a 5/16 in. (0.312) diameter with 18 threads per inch. It carries the socket-head (Allen/hex-key) drive style noted in the manufacturer listing, and cross-references include 1450-3784474 and CHE-378447-4. This is a fastener-level replacement part, so ordering the exact number keeps your PTO or differential assembly torqued to the correct hardware spec. Sold by Pro Gear and Transmission. Not sure this is your bolt? Give us a call and we can confirm proper fit for your application.
Features
Chelsea capscrew, part number 378447-4 or 3784474
Socket-head (hex-key drive) cap screw
Shank size 0.312 in. (5/16 in.) diameter
18 threads per inch
Cross-references: 1450-3784474, CHE-378447-4, CHL3784474
PTO / driveline mounting hardware
Tech Specs
- Part number: 378447-4 or 3784474
- Type: Socket-head cap screw
- Diameter: 0.312 in. (5/16 in.)
- Threads per inch: 18
- Cross reference: 1450-3784474, CHE-378447-4, CHL3784474
