Hillman 5/16 in. x 1-1/2 in. Heat-Treated Hex Head Screw (100 Pack) – Clearance Discount
Product Overview
The HILLMAN 5/16 in. D x 1-1/2 in. L Heat Treated Zinc Steel Hex Head Cap Screw (100-Pack) is a reliable choice for heavy-duty fastening in construction, automotive, and general-purpose applications. These screws are engineered for strength and durability, with heat-treated steel construction that resists shearing and torque-related failures.
The zinc plating provides a layer of corrosion resistance, making these suitable for both indoor and outdoor use, especially where long-term durability matters. The hex head design allows for easy tightening with standard wrenches or sockets, and the partially threaded shank offers better clamping force and alignment in assemblies where precise tension is key.
With a 100-count box, this pack is ideal for bulk jobs or ongoing shop use.
Technical Specs
- Brand: HILLMAN
- Diameter: 5/16 inch
- Length: 1-1/2 inches
- Thread Type: Coarse (UNC)
- Material: Heat-treated steel
- Finish: Zinc-plated for corrosion resistance
- Head Type: Hex head
- Threading: Partial
- Drive Style: Wrench or socket-compatible
- Pack Quantity: 100
What It’s Good For
Great for framing, automotive repair, mechanical assemblies, and general fastening where strength and corrosion resistance are important. Commonly used with washers and hex nuts to secure parts in wood and metal structures.
Compared to Other Fasteners
Compared to standard steel bolts, these heat-treated and zinc-coated screws offer better tensile strength and rust resistance. The hex head provides easier torque application than Phillips or slotted heads in heavy-duty setups.
Also Known As
- HILLMAN Zinc Hex Cap Screws (100 Pack)
- 5/16" x 1-1/2" Hex Bolts
- HILLMAN Partially Threaded Cap Screws
- Heavy-Duty Zinc-Plated Machine Screws