1/2-13 x 5 in Hex Head Screw Bolt Black Oxide - Durable 20pc Pack

In this review of the 1/2-13 x 5 in Hex Head Screw Bolt the bottom line is simple: this 20pc pack targets DIYers, shop technicians and light industrial users who need a consistent, fully threaded stainless fastener with a dark finish. The reviewer found the single biggest reason to buy is the combination of 18-8 (304) stainless construction and full threading, which delivers reliable corrosion resistance and strong clamping over the full 5 in length for furniture, machinery or marine assemblies.

Key Features

• Material: 18-8 (304) stainless steel offers higher corrosion resistance than ordinary steel, helping the bolts last longer in damp or outdoor environments.
• Size and Fit: The 1/2-13 thread diameter and 5 in length provide deep engagement for thick assemblies and long runs through layered materials.
• Threading: Fully threaded shank gives flexibility to adjust clamp length anywhere along the bolt for varied fastening needs.
• Finish: Black oxide appearance provides a darker aesthetic that blends with dark hardware and helps reduce visible glare.
• Value Pack: Twenty pieces per pack supply enough fasteners for small projects, repairs, or multiple assemblies without frequent reordering.
• Support: The brand offers customer service contact for questions or issues, making it easier to resolve fit or quality concerns.

Who It's For

This hex bolt set is for homeowners, workshop mechanics and light industrial users who need heavy-duty, long, fully threaded fasteners for furniture assembly, garage repairs, small machinery or marine fittings where stainless resistance is preferred. The long 5 in length and 1/2-13 thread make it suitable when shorter bolts would not provide sufficient engagement.

Those who should look elsewhere include applications that demand a perfect black finish under heavy wear or aerospace-grade fasteners; some customers reported the black coating can scratch and the finish may not match premium black-steel parts. For critical structural or certified parts, choose bolts with traceable certification beyond standard 18-8 stainless.

Pros & Cons

Pros

• Good corrosion resistance from 18-8 (304) stainless steel, suitable for damp and outdoor use.
• Full threading along the 5 in length provides versatile clamping and adjustable engagement.
• Twenty pieces in the pack is convenient for projects and prevents frequent repurchasing.
• Clean, consistent length and thread quality reported by multiple users for predictable fit.

Cons

• The black oxide finish receives mixed feedback and may scratch or wear with heavy use, so appearance can degrade.
• One report questioned material appearance, so customers wanting verified material certificates should confirm before large purchases.

Specifications

Thread Diameter	1/2 in
Thread Pitch	1/13
Screw Length	5 in
Head Type	Hex head (head diameter 0.736 in)
Material	18-8 (304) stainless steel
Finish	Black oxide
Pack Quantity	20 pieces

Our Verdict

This 1/2-13 x 5 in hex bolt pack is a sensible value for DIYers and shop users who need long, fully threaded stainless fasteners that resist corrosion and provide reliable mechanical engagement. It is good value when appearance is secondary and you want a ready supply of consistent bolts, but those who need perfect black plating or certified material traceability should consider higher-spec alternatives.

Frequently Asked Questions

Are these bolts fully threaded?
Yes, each bolt is fully threaded along the 5 in shank for adjustable clamping and deep engagement.

What material are the bolts made of?
The bolts are specified as 18-8 (304) stainless steel, chosen for improved corrosion resistance versus regular steel.

How many bolts come in the pack?
The package contains 20 pieces, enough for multiple small projects or several assemblies.