Hillman Grade 8 Hex Head Cap Screws, 9/16 in. x 1-1/2 in., 25-Pack

Heavy-duty hex head cap screws crafted from heat-treated Grade 8 steel for high-strength fastening. Ideal for machinery, automotive, and structural applications requiring high torque and wear resistance.

Key Features:

• Grade 8 Strength: Heat-treated steel construction delivers superior tensile strength for demanding applications
• Reliable Seal: Washer face under head improves load distribution and seating
• High Torque Capability: Hex cap head with machine threads supports secure, wrench-driven tightening
• Corrosion-Resistant Finish: Yellow dichromate treatment enhances wear and corrosion resistance
• Bulk Value: 25 screws per box for jobsite or shop efficiency

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are partially threaded along the shank, per USS Grade 8 design.

Q: What thread type do they use?
A: Coarse machine threads.

Q: What tools are needed for installation?
A: Tighten using a wrench or a drill/driver with the appropriate hex socket.

Q: What is the finish?
A: Heat-treated, yellow dichromate finish for added strength and wear resistance.

Q: How many are included?
A: 25 pieces per retail package.

Industrial Strength, Clean Precision

These Grade 8 cap screws bring a quiet authority to any build—sleek, purposeful, and beautifully engineered. The hex head and washer face feel sculptural, creating a crisp junction between metal planes. Style them with matte-black hardware and oiled oak for a nuanced, workshop-chic narrative. A small detail with a luxe impact, they anchor your vision with unwavering strength.

Upgrade your fasteners to Grade 8 performance—add this 25-pack to your cart and build with confidence.