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HILLMAN 1/2 in. D X 3 in. L Zinc Plated Steel Hex Tap Bolt 50 pk

HILLMAN 1/2 in. D X 3 in. L Zinc Plated Steel Hex Tap Bolt 50 pk

Meet the Hillman 1/2 in D x 3 in L Zinc Plated Steel Hex Tap Bolt—a dependable, full-thread fastener designed for secure, flush assemblies in tapped holes or with nuts. With a 1/2-…

Hillman MPN 221037 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $48.99. Our online price is $54.99.
$54.99
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About Product Overview

Meet the Hillman 1/2 in D x 3 in L Zinc Plated Steel Hex Tap Bolt—a dependable, full-thread fastener designed for secure, flush assemblies in tapped holes or with nuts. With a 1/2-inch diameter and 3-inch length, it delivers robust thread engagement for sturdy connections across a range of metalworking and furniture projects. The zinc plating provides corrosion resistance for interior and exterior use, while Grade 2 steel delivers reliable strength in everyday hardware tasks.

Key specifications

  • Diameter: 1/2 in
  • Length: 3 in
  • Thread type: Full thread (fully threaded)
  • Head type: Hex
  • Head diameter: 1/2 in
  • Material: Steel
  • Finish: Zinc plated
  • Grade: 2
  • Packaging: 50 pieces per boxed lot
  • Unit: SAE
  • Product type: Hex tap bolt

What you can do with this hex tap bolt

  • Secure metal frames, brackets, and equipment mounts where full-length threads are advantageous.
  • Create strong, reusable connections by pairing with a nut or threaded tapped hole for rapid assembly and disassembly.
  • Ideal for workshop projects, shelving supports, and hobbyist metalworking where consistent thread engagement matters.
  • Bulk-pack convenience: 50 bolts per box keeps your shop stocked for ongoing projects and quick replacements.

Why this Hillman tap bolt stands out

  • Complete thread engagement: Fully threaded length provides uniform grip along the entire shank, reducing the need for multiple fasteners and simplifying installation in thick materials.
  • Corrosion resistance: Zinc plating shields steel components from rust and wear, extending life in both indoor and outdoor-inspired projects.
  • Reliable SAE standards: Designed to pair seamlessly with standard nuts and tapped holes, ensuring compatibility across common hardware setups.
  • Ready for bulk use: A 50-piece boxed pack is perfect for garages, shops, and construction sites where stocking up saves time on every project.

Installation tips and best practices

  • Use with the appropriate nut or ensure a compatible tapped hole to achieve optimal grip and load distribution.
  • If you're threading into a clean, dry surface, consider a light lubricant to ease installation and prevent galling on the threads.
  • Inspect hole diameter and ensure proper alignment before tightening to avoid cross-threading and ensure a secure, flush fit.
  • Pair with washers when mounting hardware to distribute load and protect surfaces from marring.

The Details Specifications

Brand Hillman
SKU 5323381
UPC 008236175103
Unit 0
Case Pack Quantity 2 per case
Retail Unit Quantity 1
Unit of Measure 50 BX
Dimensions (L × W × H) 7 × 4 × 3
Weight 9 lbs
Cubic Feet 0.10672 ft³
Country of Origin CHINA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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