Hillman Grade 5 Hex Head Cap Screws, 5/16 × 5-1/2 in, 50-Pack
50 per packHeat-treated zinc
$59.99 /pack
$1.20 per piece · 50 per pack
Orders start at $399. Combine any items to reach it.
Sold by the pack of 50. We round up and set the quantity for you.
- 1 pack · 50 pieces
- $59.99
- Standard delivery
- $49.99 per order
- Sales tax
- Added at checkout
All orders are subject to approval.
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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
Fasteners
Details & specifications.
From the maker · the maker’s description
These Hillman Grade 5 hex head cap screws provide reliable fastening strength for automotive, machinery, and construction projects. Made of heat-treated steel with a zinc finish, they feature a washer face under the head and coarse threads for secure assembly.
Industrial polish with steadfast purpose
Clean-lined and quietly authoritative, these hex cap screws bring a refined industrial cadence to custom builds. The zinc finish offers a subtle gleam, while the crisp washer-faced head delivers a tailored, architectural detail. Pair them with matte black hardware for a chic, mechanical contrast or let them punctuate raw woods for modern utility. A small but essential flourish, they anchor craftsmanship with effortless sophistication.
Stock up on Hillman Grade 5 hex cap screws today for strong, reliable fastening that keeps projects moving.
- SKU
- 200108
- Length
- 5-1/2 inch
- Per pack
- 50 per pack
- Finish
- Heat-treated zinc
- Head
- Hex head with washer face
- Material
- Steel
- Diameter
- 5/16 inch
- Brand
- Hillman
- Grade
- 5 (USS)
- Thread Type
- Coarse
- Threading
- Partially threaded along shank
- Units
- Imperial
- Number in Package
- 50 pack
- Packaging Type
- Boxed
- Package Dimensions (L x W x H)
- 6.8 in x 4.5 in x 3.3 in
- Package Weight
- 6.8 lb
- Full product name
- Hillman 5/16 in. Diameter x 5-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-Pack
Key features
- Grade 5 Strength: Heat-treated steel provides higher tensile strength for demanding applications
- Corrosion-Resistant Finish: Zinc plating helps protect against rust and wear
- Washer Face Head: Integrated bearing surface under the hex head improves load distribution and sealing
- Coarse Thread Design: Ideal for quick assembly and strong hold in tapped holes or with nuts
- Bulk Contractor Pack: 50-pack for efficient stocking and project savings
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 (Grade 5 USS style).