1/2-13 x 6in Hex Head Screw Bolt Kit - Durable 18-8 Stainless Steel

In this review the 1/2-13 x 6in Hex Head Screw Bolt kit is judged primarily for DIYers, mechanics, and small shop users who need corrosion-resistant fasteners for outdoor or structural projects. The bottom line: these fully threaded hex bolts and matched hardware offer sturdy, long-lasting connections thanks to 18-8 (304) stainless steel, making them a reliable choice when rust resistance and consistent thread engagement matter.

Key Features

• Material: 18-8 (304) stainless steel provides higher corrosion resistance and a longer service life than ordinary steel fasteners.
• Complete kit: Each package includes 20 pieces of bolts, nuts, flat washers and lock washers so a purchaser gets matched components for immediate use.
• Size and fit: The bolt measures 1/2in thread diameter with 1/13in pitch and 6in length, suitable for deep clamping or through-bolting applications.
• Head design: The hex head with a 0.736in head diameter offers reliable wrench engagement for high-torque tightening.
• Standards compliance: Bolts are manufactured to meet applicable ASME-style hex bolt expectations, useful for general mechanical and assembly tasks.

Who It's For

This kit is ideal for homeowners tackling outdoor projects, boat and marine applications, and shop mechanics who need durable, rust-resistant fasteners that stay secure over time. The full-thread design is useful when you need adjustment along the entire shank or when installing through thick parts where thread engagement along the full length is required.

It is less appropriate for applications requiring specialty coatings, metric sizing, or unusually fine thread pitches; contractors needing large-volume commercial packaging may prefer larger bulk options rather than a 20-piece kit per size.

Pros & Cons

Pros

• High corrosion resistance from 18-8 stainless steel helps prevent rust in outdoor and marine environments.
• Complete set of bolts, hex nuts, flat washers and lock washers provides matched hardware for secure assemblies.
• Robust hex head and fully threaded shank deliver consistent clamping and easy torque application.

Cons

• Supply is a modest 20-piece kit, which may be limiting for large projects requiring many fasteners.
• Thread pitch noted as 1/13in is unusual compared with common pitch charts, so buyers should verify fit for pre-threaded parts.

Specifications

Brand	SG TZH
Material	18-8 (304) stainless steel
Thread diameter	1/2in
Thread pitch	1/13in
Screw length	6in
Head diameter	0.736in
Pack contents	20 bolts, 20 hex nuts, 20 flat washers, 20 lock washers

Our Verdict

The 1/2-13 x 6in Hex Head Screw Bolt kit is a sensible choice for hobbyists and professionals who need dependable, rust-resistant hardware in a convenient matched pack. Its 18-8 stainless steel construction and full-thread design deliver lasting connections and flexibility for through-bolting tasks, making it good value for moderate-sized projects where quality and corrosion resistance matter.

Frequently Asked Questions

Are these bolts corrosion resistant?
Yes, the bolts are 18-8 (304) stainless steel, which offers higher corrosion resistance and anti-rust performance than ordinary steel fasteners.

What is included in the package?
The package contains 20 pieces each of fully threaded hex bolts, hex nuts, flat washers and lock washers so you have matched hardware for assembly.

Will these fit pre-threaded holes?
They are 1/2in diameter with a 1/13in pitch; buyers should confirm the pitch and diameter match existing threads before installation.