Skip to content
Free Local Pickup â—Ź Ship to Your Hometown Store
Pro & Contractor Accounts â—Ź Apply for Net Terms
100,000+ Products â—Ź Trusted American Hardware Brands

HILLMAN 7/16 in. D X 3 in. L Heat Treated Steel Hex Head Cap Screw 50 pk

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Meet a dependable workhorse for heavy-duty assemblies: the Hillman 7/16 in. D x 3 in. L Heat Treated Steel Hex Head Cap Screw. Crafted from robust steel and heat-treated for enhanc…

Hillman MPN 220190 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $61.99. Our online price is $68.99.
$68.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within for same-day shipping
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Meet a dependable workhorse for heavy-duty assemblies: the Hillman 7/16 in. D x 3 in. L Heat Treated Steel Hex Head Cap Screw. Crafted from robust steel and heat-treated for enhanced strength, this screw is built to perform under demanding conditions where reliability matters most.

Why this hex head cap screw stands out

  • Strength you can feel: Made from steel and heat-treated, this cap screw is designed to resist wear and stand up to demanding tightening and load scenarios.
  • Exacting dimensions: 7/16 inch head diameter paired with a 3 inch overall length delivers solid clamping power in thick materials and deep joints.
  • High-torque, coarse-thread design: Coarse thread type enables quick, forgiving engagement in wood and soft metals, reducing cross-threading risk during installation.
  • Grade 8 performance: Classified as Grade 8, it’s positioned for heavy-duty applications where strength and durability are priority.
  • Bulk reliability: Packaged in a boxed 50-piece set, providing a convenient, organized supply for ongoing projects and maintenance tasks.
  • Trusted brand: Hillman delivers a familiar standard of quality, designed for professional results as well as DIY enthusiasts who count on consistent fastener performance.

This screw is ideal for projects where a strong, secure fastener matters—from assembly and mounting in woodworking to structural support in light metal or equipment setups. The combination of heat-treated steel, Grade 8 strength, and a 7/16 in. head diameter ensures you can tighten with confidence and achieve dependable clamping force in thicker materials.

Practical usage notes: Use with a compatible hex wrench or socket to achieve the correct torque, and ensure adequate thread engagement for durable joints. The 3 inch length is suited for applications where a longer fastener provides deeper bite, while the coarse threads help you achieve quick, reliable installation in appropriate substrates.

Specifications at a glance:

  • Diameter / Head: 7/16 in.
  • Length: 3 in.
  • Thread Type: Coarse
  • Material: Steel
  • Finish: Heat Treated
  • Grade: 8
  • Package Quantity: 50 pieces
  • Packaging: Boxed

The Details Specifications

Brand Hillman
SKU 54575
UPC 008236081985
Unit 0
Case Pack Quantity 2 per case
Retail Unit Quantity 1
Unit of Measure 50 BX
Dimensions (L × W × H) 5 × 4 × 3
Weight 7 lbs
Cubic Feet 0.1016 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare