

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 86853355 is a 5/16-18 UNC hex head cap screw designed for general industrial and mechanical fastening applications. Manufactured from Grade 8 steel with a zinc-plated finish, this fastener delivers high tensile strength and corrosion resistance suited to demanding assembly environments. The screw measures 1.5 inches under the head and features partial threading, which helps align mating parts before full engagement and maintains clamping load across unthreaded shank sections. Licensed tradespeople, maintenance technicians, and assembly professionals install this type of fastener across HVAC structural frames, electrical enclosures, plumbing equipment mounts, and general mechanical assemblies.
This cap screw is appropriate for residential and commercial applications wherever a high-strength, inch-series threaded fastener is required. The 5/16-18 UNC thread pattern is a common standard across equipment frames, brackets, and structural sub-assemblies. The partially threaded shank makes it especially useful in through-bolt applications where shank bearing load is a design factor. Sold in a package quantity of 10 with a minimum order quantity of 1 package.
Designed for use in any application requiring a 5/16-18 UNC partially threaded hex head cap screw in Grade 8 steel with a zinc-plated finish.
Install using a standard hex socket or open-end wrench sized for a 5/16-18 fastener. Ensure the mating tapped hole or nut is clean and free of debris before threading to avoid cross-threading. Power down or de-energize any equipment before accessing fastened assemblies on electrical or mechanical systems. Follow applicable equipment manufacturer torque guidelines and relevant codes such as NEC or IFGC where fastener installation is part of a regulated assembly.
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!