

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The VALUE COLLECTION 307178BR is a hex socket cap screw designed for high-strength fastening in demanding mechanical and structural applications. It features a 3/4-10 UNC thread size with 3 inches of length under the head and a 9/16-inch hex drive socket. The screw is partially threaded, constructed from alloy steel, and finished with a black oxide coating that provides moderate corrosion resistance. Conforming to ASTM A574, this fastener meets a recognized standard for socket head cap screws used in industrial and heavy-duty assemblies. Maintenance technicians, millwrights, and mechanical contractors regularly specify this type of fastener for machine frames, brackets, and equipment assemblies.
This screw is suited for use in industrial machinery, mechanical assemblies, and structural fastening applications where a high-strength socket head cap screw is required. The 3/4-10 UNC coarse thread is a common size across a wide range of equipment platforms, making this a standard stock item for shops, maintenance departments, and field service kits. The black oxide finish is appropriate for indoor or low-moisture environments where mild surface protection is acceptable.
Designed as an OEM-style replacement or standard-stock hex socket cap screw for industrial machinery and mechanical assemblies requiring a 3/4-10 UNC partially threaded fastener conforming to ASTM A574.
Installation is typically performed by millwrights, maintenance technicians, or mechanical contractors using a 9/16-inch hex key or socket driver. Always power down and de-energize any equipment before performing fastener service on mechanical assemblies. Thread engagement should follow the fastener manufacturer and equipment OEM guidelines for the material being joined. Inspect threads for damage or contamination before installation and apply thread lubricant as required by the application.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!