5/16 × 3/4 in Grade 5 Hex Cap Screws (100-Pack)
100 per packHeat Treated Zinc
$24.99 /pack
$0.25 per piece · 100 per pack
Orders start at $399. Combine any items to reach it.
Sold by the pack of 100. We round up and set the quantity for you.
- 1 pack · 100 pieces
- $24.99
- Standard delivery
- $49.99 per order
- Sales tax
- Added at checkout
All orders are subject to approval.
You're not charged until your order is approved and ready to ship. Cancel free before then.
Standard delivery$49.99
Per order, added in your cart. We deliver to the 48 contiguous states.
Availability confirmed by the desk at approval, with your delivery date. Shipping policy · Returns
Goes with
Hillman · Fasteners
Details & specifications.
From the maker · Hillman’s description
These Hillman hex head cap screws are Grade 5 steel with a heat-treated zinc finish for strength and wear resistance. Coarse-threaded and partially threaded, they’re ideal for fastening into tapped holes or with nuts in general construction and repair.
Industrial polish with everyday reliability
A crisp hex head in a cool zinc tone brings an understated, utilitarian elegance to built-ins and workshop fixtures. I love the washer-faced head—such a thoughtful detail that sits flush and clean. Pair these with matte-black brackets or raw oak shelving to strike a refined, hardworking contrast. It’s the quiet hardware hero that makes a space feel intentionally crafted.
Equip your project with Grade 5 strength—add this 100-pack to your cart and fasten with confidence.
- SKU
- 200066
- Length
- 3/4 inch
- Per pack
- 100 per pack
- Finish
- Heat Treated Zinc
- Head
- Hex head with washer face
- Material
- Steel
- Diameter
- 5/16 inch
- Brand
- Hillman
- Grade
- 5
- Thread Type
- Coarse (USS)
- Threading
- Partially threaded shank
- Number in Package
- 100 pack
- Packaging Type
- Boxed
- Use
- For use with a nut or in a tapped hole; tighten with wrench or drill
- Full product name
- Hillman 5/16 in. Diameter x 3/4 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread (100-Pack)
Key features
- Grade 5 Strength: Heat-treated steel delivers reliable tensile strength for demanding applications
- Corrosion-Resistant Finish: Zinc coating helps protect against rust and wear
- Coarse Thread, Partially Threaded: Ensures strong hold and easier starts in tapped holes
- Washer Face Under Head: Provides a better seal and load distribution
- Bulk Value Pack: 100 screws sized 5/16 in. diameter x 3/4 in. length for projects and maintenance
Specifications are provided by the manufacturer. Brand names are trademarks of their owners.
Guide
Choosing the fastener
- 1
Outdoors and treated lumber
Use hot-dip galvanized, stainless or exterior-coated fasteners, and follow the board maker’s fastener recommendation.
- 2
Price per piece
The pack price divided by the pieces in the pack, both as listed.
- 3
Drive
Star (Torx), square, Phillips or hex, as the listing states. Match the bit you carry.
They are partially threaded along the shank with a coarse thread.