Hillman 5/16 in. Diameter x 1-1/4 in. Length Zinc-Plated Steel Hex Bolt, 100-Pack

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Zinc-Plated Steel Hex Bolt, 5/16 in x 1-1/4 in (100-Pack)

Durable Hillman Grade 2 hex bolts for wood, metal, and mixed material fastening. Zinc-plated steel resists corrosion for everyday projects, with coarse threads for reliable grip. Ideal for general-purpose repairs and builds.


Key Features:

  • General-Purpose Fastening: Designed for wood-to-wood, wood-to-metal, and metal-to-metal applications
  • Corrosion Resistance: Zinc-plated steel finish stands up to typical indoor/outdoor use
  • Strong Hold: Partially threaded shank reduces shear movement and improves clamping force
  • Reliable Grade: Grade 2 construction suitable for most common projects
  • Bulk Value: Convenient 100-pack for jobsite or workshop stock

Specifications Table:

Specification Details
Brand Name Hillman
Finish Zinc Plated
Grade Grade 2
Head Diameter 5/16 inch
Length 1-1/4 inch
Material Steel
Number in Package 100 pack
Packaging Type Boxed
Thread Type Coarse
Unit of Measurement Imperial
Package Height 3.5 in
Package Width 4.3 in
Package Length 4.3 in
Package Weight 3.4 lbs

Frequently Asked Questions (FAQ):

Q: Are these bolts fully or partially threaded?
A: They feature a partially threaded shank to improve grip and reduce shear movement.


Q: What nuts and washers should I use?
A: Match with Grade 2 nuts and washers with a zinc-plated finish for consistent performance.


Q: Do I need to pre-drill?
A: Yes, pre-drill holes to the appropriate diameter before installing for best results.


Q: What thread type do these bolts have?
A: Coarse thread.


Q: Can they be used outdoors?
A: The zinc plating provides typical corrosion resistance suitable for general outdoor use; for harsh environments, consider higher-grade or stainless options.


A Clean, Polished Fastener for Cohesive Hardware Detailing

This zinc-plated hex bolt brings a crisp, luminous accent to functional hardware moments. The clean geometry of the hex head pairs effortlessly with modern and traditional fixtures alike. Style it with matching zinc washers and nuts for a unified, tailored look across cabinetry and utility builds. It’s a small detail that elevates everyday projects to feel refined and intentional.


Stock your shop with this reliable 100-pack of Hillman zinc-plated hex bolts and tackle your next project with confidence.

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