Hillman 3/8 in. x 4 in. Zinc Hex Head Cap Screws, 50-Pack

Heavy-duty Hillman hex head cap screws made of heat-treated zinc-plated steel for durable fastening. Sized 3/8 in. diameter by 4 in. length with coarse 3/8-16 machine threads, ideal for use with a nut or tapped hole in general construction and repair.

Key Features:

• Durable Construction: Heat-treated zinc-plated steel resists wear and corrosion
• High Torque Capability: Hex cap head with machine threads for strong clamping force
• General Purpose Use: Grade 5 strength suits a wide range of projects
• Coarse Thread: 3/8-16 thread for reliable hold in tapped holes or with nuts
• Bulk Value: Convenient 50-pack for jobsite or shop replenishment

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Are nuts included?
A: No, nuts are not included and must be purchased separately.

Q: What wrench size is needed?
A: Tighten with a standard wrench or driver sized for a 3/8 in. hex cap screw head.

Q: What is the thread specification?
A: Coarse 3/8-16 machine threads.

Q: What grade are these bolts?
A: Grade 5 for balanced strength and workability.

Q: Where should these be used?
A: Suitable for general fastening into tapped holes or with matching nuts in construction, automotive, and maintenance applications.

Industrial Polish, Purposeful Strength

These zinc-kissed cap screws bring a subtle, silvery sheen that pairs beautifully with raw woods and painted steel. The crisp hex head reads precise and intentional—an elevated detail on open-shelf brackets or custom hardware. Style them with matte black fittings for contrast, or echo their finish with brushed nickel accents. A small component with big impact, they anchor designs with quiet, functional luxury.

Outfit your next project with reliable, Grade 5 strength—add this 50-pack to your cart today.