Stainless Steel 5/16-18 x 4-1/2 in. Hex Cap Screws (25-Pack)

Durable Hillman hex head cap screws made from stainless steel for superior corrosion resistance. Sized 5/16-18 x 4-1/2 in., these fasteners are ideal for securing components in marine, outdoor, and general construction applications.

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Key Features:

• Corrosion-Resistant Stainless Steel: Resists rust for long-lasting performance in outdoor and marine environments
• Hex Head, Machine Thread: Provides strong torque transfer and secure fastening with a nut or tapped hole
• 5/16-18 x 4-1/2 in. Size: Coarse thread pitch for reliable grip in common assemblies
• Partial Thread Design: Helps reduce shear and improves clamping force where unthreaded shank is beneficial
• Value Pack: Convenient 25-count pack for project or jobsite use

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Specifications Table:

Specification	Details
Thread Size	5/16-18 (coarse)
Length	4-1/2 in
Head Type	Hex head cap screw
Material	Stainless steel
Pack Quantity	25 pieces

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Frequently Asked Questions (FAQ):

Q: What materials are these screws made from?
A: Stainless steel, offering excellent resistance to rust and corrosion.

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Q: What is the thread size and length?
A: 5/16-18 coarse thread with a 4-1/2 inch overall length.

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Q: Do I need to pre-drill?
A: Pre-drilling a hole matching the bolt diameter is recommended for best results in most materials.

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Q: What tools are needed for installation?
A: Use a wrench or socket sized for the hex head; pair with a matching nut and washer if not threading into a tapped hole.

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Q: Are these suitable for outdoor or marine use?
A: Yes, the stainless steel construction makes them suitable for outdoor and marine environments.

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Sleek Stainless Hardware With Purpose

There’s a quiet confidence in stainless steel—clean, cool, and impeccably refined. These hex cap screws bring a polished industrial note while delivering steadfast strength. Use them to accent exposed joinery on shelving or hardware details where function meets design. A small detail that elevates the whole space with resilient luxury.

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Upgrade your build with stainless strength—add this 25-pack to your cart and fasten with confidence.