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Hillman

Hillman 5/16 in. Diameter x 5 in. Length Zinc-Plated Steel Hex Bolt, Coarse Thread, 50-Pack

Hillman 5/16 in. Diameter x 5 in. Length Zinc-Plated Steel Hex Bolt, Coarse Thread, 50-Pack

Regular price $44.99 USD
Regular price Sale price $44.99 USD
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Hillman 5/16 x 5 in. Zinc-Plated Steel Hex Bolts (50-Pack)

These Grade 2 Hillman hex bolts feature a zinc-plated steel construction for durable, corrosion-resistant fastening in wood, metal, and composite projects. The partially threaded shank delivers a stronger grip and reduced shear movement, ideal for general-purpose applications.


Key Features:

  • General-Purpose Fastening: Grade 2 zinc-plated steel for reliable strength and everyday use
  • Corrosion Resistance: Zinc finish helps protect against rust in typical environments
  • Stronger Hold: Partially threaded shank minimizes shear movement between materials
  • Coarse Thread: Compatible with standard coarse nuts and washers for easy assembly
  • Bulk Pack Value: 50-pack for efficient stocking and project readiness

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 5 inch
Material Steel
Finish Zinc Plated
Grade Grade 2
Thread Type Coarse
Head Type Hex
Number in Package 50
Packaging Type Boxed
Recommended Use Wood-to-wood, wood-to-metal, metal-to-metal fastening
Shank Partially threaded
Unit of Measurement Listed as Metric (site); dimensions provided in inches
Package Dimensions 6.8 in L x 4.5 in W x 3.3 in H
Package Weight 6.2 lbs

Frequently Asked Questions (FAQ):

Q: Are these bolts fully or partially threaded?
A: They have a partially threaded shank for improved grip and reduced shear movement.


Q: What materials are suitable for these bolts?
A: Designed for wood-to-wood, wood-to-metal, and metal-to-metal applications.


Q: Do I need matching hardware?
A: Use washers and nuts that match the same grade and finish—coarse thread Grade 2 with zinc plating.


Q: Will the zinc plating prevent rust outdoors?
A: Zinc plating offers corrosion resistance for typical use; for harsh outdoor or marine environments, consider stainless steel.


Q: What drill preparation is recommended?
A: Pre-drill holes to the appropriate size for easier installation and proper alignment.


A Clean, Industrial Essential

The crisp geometry of a hex bolt introduces a subtle, utilitarian polish to custom builds and furniture upgrades. Its zinc sheen reads modern while quietly supporting the composition. Pair with matte black brackets for contrast or layer with warm woods to balance the industrial note. It’s a small detail that elevates the craft of luxurious, everyday living.


Equip your next project with these durable zinc-plated hex bolts and enjoy reliable, fuss-free fastening in bulk.

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