Hillman 5/16 in. x 4 in. Zinc-Plated Steel Carriage Bolt, 50-Pack
SKU: 21112465776

Hillman 5/16 in. x 4 in. Zinc-Plated Steel Carriage Bolt, 50-Pack

Sale price$24.29 Regular price$26.99
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Hillman 5/16 in. x 4 in. Zinc-Plated Steel Carriage Bolt, 50-PackHillman 5 16 in. x 4 in. Zinc Carriage Bolts (50 Pack) Durable zinc plated steel carriage bolts for fastening wood to wood or metal. The smooth, domed head provides a clean, low profile finish while the square neck locks into material for easy one wrench installation. Key Features: Zinc Plated Protection: Resists rust and corrosion for indoor and light outdoor use Low Profile Domed Head: Clean, semi flush appearance ideal where clearance is tight

Hillman 5/16 in. x 4 in. Zinc Carriage Bolts (50-Pack)

Durable zinc-plated steel carriage bolts for fastening wood to wood or metal. The smooth, domed head provides a clean, low-profile finish while the square neck locks into material for easy one-wrench installation.


Key Features:

  • Zinc-Plated Protection: Resists rust and corrosion for indoor and light outdoor use
  • Low-Profile Domed Head: Clean, semi-flush appearance ideal where clearance is tight
  • Square Neck Locking: Grips into wood to prevent spinning—no washer needed under head
  • Versatile Fastening: Commonly used to attach a wood face to wood or metal frames
  • Pre-Drill Guidance: Drill pilot holes matching 5/16 in. diameter for best results

Specifications Table:

Specification Details
Brand Hillman
Product Type Carriage bolt
Material Steel
Finish Zinc-plated
Diameter 5/16 in.
Thread Size 5/16-18
Length 4 in.
Head Style Domed, low-profile
Neck Type Square neck
Pack Quantity 50 pieces
Intended Use Fasten a wood face to wood or metal
Installation Pre-drill hole to match bolt diameter

Frequently Asked Questions (FAQ):

Q: What materials can these carriage bolts fasten?
A: They’re designed to fasten a wood face to either wood or metal.


Q: Do I need a washer under the head?
A: No. The square neck locks into the material, eliminating the need for a flat washer under the head.


Q: Is pre-drilling required?
A: Yes, pre-drill a hole matching the 5/16 in. diameter for proper fit and to prevent splitting.


Q: Are these suitable for outdoor use?
A: The zinc plating offers moderate corrosion resistance; for harsh or long-term outdoor exposure, consider hot-dipped galvanized or stainless options.


Q: What is included in the package?
A: 50 pieces of 5/16 in.-18 x 4 in. zinc-plated steel carriage bolts.


Streamlined Hardware with a Polished, Practical Edge

A brushed zinc sheen brings a subtle sophistication to utilitarian joinery, letting functional details read as thoughtfully edited accents. The domed head sits like a small metallic button, smoothing transitions on furniture bases and garden builds. Style it exposed on a bench or planter where the quiet glint complements natural wood grain. Consider it a finishing touch that makes everyday construction feel impeccably tailored.


Upgrade your next build with durable, clean-finished fastening—add this 50-pack of Hillman zinc carriage bolts to your cart now.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21112465776

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 921 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
S. Edmund
Phoenix, US
★★★★★ 5
The Best Sunglasses
Color: Black
I was hesitant to purchase these at first. I'm so glad I did, though. They are light-weight, comfortable, and super stylish. I work in the desert, so the side guards are very helpful in keeping the sand and dust out (not entirely, but they help). I will absolutely purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 27, 2024
J
Verified Purchase
JAMES C
Lexington, US
★★★★★ 5
Best battery bank I have used so far
Color: Black, Color: Black
Omg I love this thing. Ordered one from Anker and it took a few days to get to me. Loved it so much I ordered two more from Amazon due to shipping speed. I also own the larger version of this with the retractable cable and kept it as my primary battery Bank. The device is small enough to easily fit and comfortably hold in my pocket. It's super fast charges my phone with its retractable cable which is insanely useful. The digital display on it is perfectly designed. I currently use three devices consistently throughout my entire day that require recharging. This battery bank is insanely useful. The difference between this bank and the others comes down to a few things. Really good brand name as Anker has made some really good products over the years. The retractable usb-c cable is absolutely a game changer. The 10,000 mah battery can charge my phone twice before needing to recharged. It's a small cube and for me I can easily just throw it in my pocket or if somebody was to add a metal clip they could just clip it to their clothes and forget about it. I travel a lot so you have no idea how awesome it is to have a device die and simply just plug it in to the bank and continue walking without having to find a power outlet. If I could suggest anything he would be for the brand to conclude a clip that we can use so I could clip it to my backpack. Well that's it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
M
Verified Purchase
MrFoo
Lowell, US
★★★★★ 5
Great overall charger, retractable USB-C huge benefit.
Color: Green
This charger works great. Charges my S22 fast, able to charge multiple devices at once and can even recharge while charging a device at the same time. I like the screen and info it shows including the % charge remaining, input and output wastage, and battery cycles. The retractable USB-C is a huge benefit so you don't have to carry a separate cord around. Also being able to recharge with the same built in USB-C huge benefit. Have not dropped it but would be a bit worried I would damage the screen if I did but overall has very compact and durable feel to it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
M
Verified Purchase
Mrs Zena
Lexington, US
★★★★★ 5
Compact, charges fast, 2x recharge capacity.
Color: White
Great product. Size of 2 ice cubes and a little weighty. Charges and recharges fast. Included cable made traveling easy and less things to lose and get tangled in your backpack/case.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
D
Verified Purchase
DKen
Birmingham, US
★★★★★ 5
Powerful, superfast, excellent value
Color: Black
Product is exactly as expected, compact, charges super fast, love the retractable cable, easy to use the display and love the features. Powered on/off with ease. As for reliability, I've only had it a couple of days so we'll see. Would definitely recommend this to others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026

recommand products