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HILLMAN No. 10-24 Ga. X 3-1/2 in. L Combination Round Head Zinc-Plated Steel Machine Screws

HILLMAN No. 10-24 Ga. X 3-1/2 in. L Combination Round Head Zinc-Plated Steel Machine Screws

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

When you need a reliable fastener for metal-to-metal connections, the Hillman No. 10-24 x 3-1/2 in. Round Head Zinc-Plated Steel Machine Screw delivers precise strength and lasting…

Hillman MPN 90269 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $21.99. Our online price is $23.99.
$23.99
Includes free shipping on orders over $75 · $8.99 standard below
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About Product Overview

When you need a reliable fastener for metal-to-metal connections, the Hillman No. 10-24 x 3-1/2 in. Round Head Zinc-Plated Steel Machine Screw delivers precise strength and lasting performance. Crafted from durable steel and finished with a zinc plating, this machine screw stands up to rust and wear in both indoor and outdoor environments, making it a versatile choice for a range of fastener projects.

Key features that matter

  • No. 10-24 coarse thread — a classic general-purpose thread for quick, secure engagements with pre-tapped holes or nuts
  • 3-1/2 in. length — ideal for thicker panels, brackets, and assemblies where extra reach is needed
  • Round head profile — clean, unobtrusive finish that sits flush with surrounding surfaces
  • Combination drive — accepts either Phillips or Slotted drivers for flexible tool compatibility
  • Zinc-plated steel finish — provides reliable corrosion resistance for both indoor projects and outdoor applications
  • Indoor and outdoor use — designed to withstand a variety of environments
  • Packaging: boxed, sold as a single screw per package
  • Self-drilling and self-tapping: No; requires a pre-tapped hole or nut for proper fastening
  • Driver bit included: No

Ideal uses and scenarios

  • Securing metal brackets to steel frames in furniture, shelving, or equipment enclosures
  • Attaching panels and components where a threaded connection with a nut on the opposite side is preferred
  • Repairs or replacements in both indoor metal assemblies and outdoor metal structures that require a durable, long-length fastener
  • Applications in electrical or mechanical installations where a clean round-head finish is important

Installation tips

  • Pair with the matching nut or a pre-tapped hole for optimal strength and reliability
  • Use a washer to distribute load and prevent pull-through on softer materials or delicate surfaces
  • Choose a compatible combination-drive bit (Phillips or slotted) to fit your existing toolkit
  • Avoid overtightening to preserve thread integrity and prevent damage to the hole or nut

Specifications at a glance

  • Brand: Hillman
  • Product type: Machine screw
  • Finish: Zinc-plated
  • Material: Steel
  • Head type: Round
  • Length: 3-1/2 in
  • Thread type: Coarse No. 10-24
  • Drive style: Combination (Phillips or Slotted)
  • Number in package: 1
  • Packaging type: Boxed
  • Self drilling: No
  • Self tapping: No
  • Tamper resistant: No
  • Indoor or outdoor: Indoor and outdoor
  • Includes driver bit: No
  • Compatibilities: Requires nuts or pre-tapped holes

The Details Specifications

Brand Hillman
SKU 77146
UPC 008236059564
Unit 0
Case Pack Quantity 6 per case
Retail Unit Quantity 1
Unit of Measure 100 BX
Dimensions (L × W × H) 4 × 5 × 2
Weight 2 lbs
Cubic Feet 0.03387 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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