

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 R57001249 is a hex head cap screw sized 1/2-13 by 8-1/2 inches, manufactured from 18-8 stainless steel with no surface coating applied. It uses a Unified National Coarse (UNC) thread form and is partially threaded along the shank length, which is measured from under the head. The 18-8 stainless steel grade provides solid corrosion resistance suitable for general industrial, mechanical, and trade applications. This fastener is sold individually but requires a minimum order of 10 units. It weighs approximately 0.8 pounds per unit.
This cap screw is suited for structural and mechanical assembly work where corrosion resistance and a standard hex drive are required. Typical applications include HVAC equipment mounting, plumbing fixture attachment, electrical enclosure assembly, pool equipment installation, and general industrial fabrication. The partial thread design allows the unthreaded shank to bear shear loads, making it a practical choice for bolted joints where alignment and load distribution matter. Licensed tradespeople working in corrosive or outdoor environments commonly specify 18-8 stainless fasteners for long-term durability.
Designed for use with standard 1/2-13 UNC inch-series nuts and tapped components in general mechanical and trade assembly applications.
Installation is performed by mechanics, pipefitters, electricians, or HVAC technicians using standard hex wrenches or sockets. Always de-energize or depressurize any system before replacing or installing fasteners on live equipment. Apply thread lubricant or anti-seize compound when fastening into dissimilar metals to prevent galling on stainless threads. Follow applicable codes and equipment manufacturer torque guidance for the specific joint being assembled.
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!