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Hillman · Fasteners

3/8-16 x 4 in. Stainless Steel Hex Cap Screws (25-Pack)

4 inches long25 per pack

$48.99 /pack

$1.96 per piece · 25 per pack

Orders start at $399. Combine any items to reach it.

pieces

Sold by the pack of 25. We round up and set the quantity for you.

Packs
1 pack · 25 pieces
$48.99
Standard delivery
$49.99 per order
Sales tax
Added at checkout

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Standard delivery$49.99

Per order, added in your cart. We deliver to the 48 contiguous states.

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Hillman · Fasteners

Details & specifications.

From the maker · Hillman’s description

Durable stainless steel hex head cap screws designed for strong, corrosion-resistant fastening. Sized 3/8-16 x 4 inches, they’re ideal for outdoor or heavy-duty applications and come in a convenient 25-pack.

Industrial polish with enduring strength

These stainless hex cap screws bring a crisp, tailored hardware detail to cabinetry, custom shelving, and exposed mechanical joints. The clean hex head and luminous steel finish feel both utilitarian and refined. Pair them with dark-stained wood or powder-coated steel for a chic, atelier vibe. An essential touch that marries performance with elevated, modern craft.

Choose these stainless steel hex cap screws for reliable, rust-resistant fastening—stock up with the 25-pack today.

SKU
831642
Length
4 inches
Per pack
25 per pack
Head
Hex
Material
Stainless Steel
Thread
Right Hand
Brand
Hillman
Thread Size
3/8-16 (UNC)
Thread Coverage
Partially Threaded
Fastener Type
Hex Cap Screw / Hexagon Bolt
Color/Finish
Stainless Steel
Item Weight
3.3 pounds (package)
Item Model Number
831642
Measurement System
Imperial
Package Quantity
25
Product Dimensions (package)
4.6 x 3.4 x 2.3 inches
Includes
25 stainless steel hex cap screws
Full product name
Hillman 3/8-16 in. Diameter x 4 in. Length Stainless Steel Hex Head Cap Screws, 25-Pack

Key features

  • Corrosion Resistance: Stainless steel construction stands up to outdoor and wet environments
  • Secure Fastening: Hex head design provides strong torque and tight, reliable clamping
  • Standard Thread: 3/8-16 coarse thread for broad compatibility with nuts and tapped holes
  • Convenient Pack Size: 25 screws per box for jobsite or shop efficiency
  • Versatile Use: Suitable for machinery, construction, and general hardware projects

Specifications are provided by the manufacturer. Brand names are trademarks of their owners.

Guide

Choosing the fastener

  1. 1

    Outdoors and treated lumber

    Use hot-dip galvanized, stainless or exterior-coated fasteners, and follow the board maker’s fastener recommendation.

  2. 2

    Price per piece

    The pack price divided by the pieces in the pack, both as listed.

  3. 3

    Drive

    Star (Torx), square, Phillips or hex, as the listing states. Match the bit you carry.

Before you ask

Questions about this product.

Rather talk it through? 1.877.490.7099

  • They are partially threaded, offering strong grip with an unthreaded shank section.