Hillman Grade 8 Hex Head Cap Screws, 1/2" x 5-1/2", 25-Pack

Heavy-duty hex head cap screws made from heat-treated steel for high-strength fastening. Grade 8, partially threaded with a washer face for secure seating—ideal for machinery, automotive, and structural applications.

Key Features:

• Grade 8 Strength: Heat-treated steel delivers superior tensile performance for demanding jobs
• Washer Face Head: Built-in bearing surface under the hex head improves load distribution and seal
• Partially Threaded Shank: Enhanced shear strength where unthreaded section bears load
• Coarse Thread Compatibility: Reliable assembly with standard coarse-thread nuts and tapped holes
• Bulk Pack Convenience: 25-pack keeps projects moving with consistent, matching fasteners

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What size wrench or socket do I need?
A: These are 1/2-inch diameter hex head cap screws; select a socket sized for the corresponding hex head across flats per Grade 8 spec (check your hardware set).

Q: Are these fully threaded?
A: No. They are partially threaded to provide better shear strength at the unthreaded shank.

Q: What material and finish are these screws?
A: They are steel, heat-treated to Grade 8 with a yellow dichromate-style finish noted for strength and wear resistance.

Q: What thread type do they use?
A: Coarse thread, suitable for use with matching coarse-thread nuts or tapped holes.

Q: How many are included?
A: This box contains 25 screws.

Industrial Strength, Streamlined Presence

There’s a quiet elegance in precision hardware—these hex cap screws bring a tailored, industrial note to any build. The crisp washer-faced head feels intentional, a small but striking detail that elevates utility to design. Use them to accent exposed joinery on workshop cabinetry or a rugged shelving system for a subtly architectural moment. Their Grade 8 strength ensures beauty backed by unwavering performance—luxury in the details.

Equip your next build with Grade 8 confidence—add this 25-pack of Hillman hex head cap screws to your cart now.