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home > Hillman 5/16 in. Diameter x 3 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 100-Pack > Hillman 5/16 in. Diameter x 3 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 100-Pack

Hillman 5/16 in. Diameter x 3 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 100-Pack main image 0

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Hillman 5/16 in. Diameter x 3 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 100-PackHillman Grade 5 Hex Head Cap Screws, 5 16 in. x 3 in., 100 Pack These Hillman Grade 5 hex head cap screws deliver reliable fastening strength for heavy duty projects. Made of heat treated zinc plated steel with coarse threads, theyre ideal for securing machinery, automotive, and structural components. The washer face under the head provides a better seal and load distribution. Key Features: Heavy Duty Strength: Grade 5 heat treated steel withstands

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Hillman Grade 5 Hex Head Cap Screws, 5/16 in. x 3 in., 100-Pack

Name: Hillman 5/16 in. Diameter x 3 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 100-Pack
Brand: wellness-welten.net
SKU: 56937696803
Price: 59.99 USD
Availability: InStock
Rating: 4.0162 (641 reviews)

These Hillman Grade 5 hex head cap screws deliver reliable fastening strength for heavy-duty projects. Made of heat-treated zinc-plated steel with coarse threads, they’re ideal for securing machinery, automotive, and structural components. The washer face under the head provides a better seal and load distribution.

Key Features:

Heavy-Duty Strength: Grade 5 heat-treated steel withstands demanding loads
Corrosion Resistant: Zinc finish helps protect against rust and wear
Secure Fit: Coarse thread for strong grip in tapped holes with nuts
Better Seal: Washer face under the head improves load distribution
Convenient Bulk Pack: 100 screws sized 5/16 in. diameter x 3 in. length

Specifications Table:

Specification	Details
Brand Name	Hillman
Material	Steel
Finish	Heat Treated Zinc
Grade	5
Diameter	5/16 inch
Length	3 inch
Thread Type	Coarse (USS)
Head Type	Hex head with washer face
Number in Package	100
Packaging Type	Boxed

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are partially threaded along the shank, typical of Grade 5 hex cap screws.

Q: What tools are needed for installation?
A: Install with a wrench or socket; a drill with the appropriate driver can be used for faster assembly.

Q: Can these be used outdoors?
A: The zinc finish offers basic corrosion resistance suitable for many indoor and some outdoor applications; for harsh environments, consider stainless or hot-dip galvanized fasteners.

Q: What thread type do they use?
A: Coarse thread (USS) for strong engagement and easier assembly.

Q: Do they include nuts or washers?
A: No, this pack includes only hex head cap screws; purchase compatible nuts and washers separately.

Industrial polish with steadfast performance

These hex cap screws bring a crisp, engineered clarity to any build, marrying strength with a clean zinc sheen. The faceted hex head and washer face read as purposeful detailing—perfect for exposed hardware moments. Pair them with matte black brackets or raw oak to underscore a refined, utilitarian aesthetic. Essential hardware that anchors spaces with confidence and quiet luxury.

Secure your projects with Grade 5 strength—add this 100-pack of Hillman hex cap screws to your cart today.