HILLMAN 1/2-13 in. D X 3-1/2 in. L Steel Hex Head Cap Screw 25 pk

Hillman delivers a dependable fastening solution with the 1/2-13 in. D x 3-1/2 in. L Steel Hex Head Cap Screw, available in a boxed 25-pack. Built for versatility, this steel hex bolt combines a 1/2-inch diameter with 13 threads per inch and a 3-1/2-inch length to handle a range of through-bolt and nut-and-hole assemblies across woodworking, metal framing, and general hardware projects.

Key specifications

• Material: Steel
• Head type: Hex head
• Diameter: 1/2 inch
• Thread type: Coarse (13 TPI)
• Length: 3-1/2 inches
• Package quantity: 25 pieces
• Packaging: Boxed
• Product type: Hex head cap screw

Why this Hillman screw stands out

• Ready-to-use boxed set: 25 pieces per box means you have spare fasteners on hand for ongoing projects, reducing downtime from missing pieces.
• Standard, widely compatible geometry: The 1/2-inch diameter with 13 TPI coarse thread is a familiar fit for common nuts, tapped holes, and through-bolt assemblies, simplifying replacements and upgrades.
• Durable steel construction: Built to endure exertion in a variety of environments, providing reliable clamping power for repeated use.
• Hex head for ease of installation: A broad driving surface accepts standard wrenches and sockets, enabling solid torque without stripping.
• Versatile performance: Suitable for a wide range of projects—from furniture reinforcement and framing to equipment mounting and hardware upgrades.

Ideal use cases

• Furniture assembly and reinforcement where a strong, reusable fastener is needed.
• Wood-to-metal or metal-to-metal assemblies in shelving, frames, and supporting structures.
• Repairs and retrofits that require a reliable through-bolt with a standard hex head.
• Shop, garage, and workshop projects where having a ready supply of fasteners speeds up work.

Installation insights

• Pair with the appropriate nut or tapped hole; consider washers for load distribution in softer materials.
• When working with wood, pre-drilling may help prevent splitting and ensure clean engagement of the threads.
• Engage the bolt with steady torque to avoid cross-threading; tighten to the desired clamping force without over-stressing the material.
• Store and organize the boxed set to keep fasteners readily accessible for future projects.