Hillman 3/8 in. Diameter x 4 in. Length Zinc-Plated Steel Hex Tap Bolts, Coarse Thread, 50-Pack

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Hillman 3/8 in. x 4 in. Zinc-Plated Hex Tap Bolts (50-Pack)

These Hillman hex tap bolts feature a fully threaded shank for secure fastening in wood-to-wood, wood-to-metal, or metal-to-metal applications. Made from Grade 2 steel with a zinc-plated finish, they offer dependable strength and moderate corrosion resistance for everyday projects.


Key Features:

  • Fully Threaded Security: Hex tap bolts feature a fully threaded shank to minimize shear movement and hold materials firmly
  • Durable Grade 2 Steel: Balanced strength for general-purpose fastening; pair with matching Grade 2 nuts and washers
  • Corrosion-Resistant Finish: Zinc plating provides moderate rust protection for indoor and sheltered outdoor use
  • Coarse Thread Design: Easier starts and strong grip in common building materials
  • Bulk Value Pack: 50-count box of 3/8 in. diameter x 4 in. length bolts for project efficiency

Specifications Table:

Specification Details
Diameter 3/8 inch
Length 4 inch
Material Steel
Finish Zinc Plated
Grade Grade 2
Thread Type Coarse
Head Style Hex
Shank Fully threaded
Application Wood-to-wood, wood-to-metal, metal-to-metal fastening
Pieces 50 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: Are nuts and washers included?
A: No. Purchase matching Grade 2 nuts and washers separately for best results.


Q: Do I need to pre-drill?
A: Yes. Pre-drill a hole that matches the 3/8 in. bolt diameter for easier installation and proper fit.


Q: Can these be used outdoors?
A: The zinc-plated finish offers moderate corrosion resistance; for harsh outdoor environments, consider stainless or hot-dipped galvanized hardware.


Q: What thread type do these bolts have?
A: They are coarse thread, fully threaded along the shank.


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


Industrial Poise in a Polished Zinc Finish

There’s a quiet confidence to these hex tap bolts—the crisp facets of the head and the clean zinc sheen bring order and intention to utilitarian details. I love how the fully threaded profile delivers both function and a refined, rhythmic texture. Use them to punctuate exposed shelving or metalwork where hardware becomes part of the composition. They’re the small, purposeful accents that make everyday construction feel elegantly resolved.


Equip your next project with dependable, zinc-plated strength—add this 50-pack of Hillman hex tap bolts to your cart today.

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