Best Step Bolts of 2025

Corey Phillips Avatar
Corey Phillips
Last Updated: 1 Feb 2025

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Step bolts are an essential component in construction and engineering. These bolts are designed to provide a stable and secure connection between two surfaces, particularly in situations where a traditional bolt or screw may not be suitable. Step bolts have a unique design that allows them to grip into the surface they are fastened to, providing a more stable hold. They are available in a range of sizes and materials, making them suitable for use in a variety of applications. Whether you are constructing a building or repairing a piece of machinery, step bolts are an excellent choice for securing components in place.

At a Glance: Our Top Picks

Idt Trade M6 x 20 Round-Head Screws Cover #TOP 1
Idt Trade M6 x 20 Round-Head Screws
ftb score rating icon 9.9
Moroso 38760 Flex Plate Bolts for Chevy Cover #TOP 2
Moroso 38760 Flex Plate Bolts for Chevy
ftb score rating icon 9.8
Eisenwaren2000 M6 x 30 mm Round Head Screws Cover #TOP 3
Eisenwaren2000 M6 x 30 mm Round Head Screws
ftb score rating icon 9.6

Top 10 Step Bolts

#TOP 1

Idt Trade M6 x 20 Round-Head Screws

202000603-A2-0000M620
Full thread
M6x20
Idt Trade M6 x 20 Round-Head Screws Cover
Carriage Bolts M6 x 20 Pack of 2 Round-Head Screws with Square Neck DIN 603 A2 Stainless Steel

The Idt Trade Round-Head Screws are crafted from A2 stainless steel, ensuring top professional quality and durability. With a diameter of 6.0 mm and a length of 20.0 mm, these screws are designed for versatility in various applications. The full thread provides a secure grip, making them ideal for fastening tasks. Their round head design adds a neat finish to your projects, enhancing both aesthetics and functionality.

What We Like
Durable stainless steel construction
Full thread for secure grip
Neat round head design
Pack of 2 for convenience
#TOP 2

Moroso 38760 Flex Plate Bolts for Chevy

Moroso
38760
Grey
Moroso 38760 Flex Plate Bolts for Chevy Cover
Moroso 38760 Flex Plate Bolts

The Moroso Flex Plate Bolts are specifically designed for Chevy vehicles, ensuring a perfect fit. With package dimensions of 7.874 cm in length, 8.89 cm in width, and 3.81 cm in height, they are compact and easy to store. Weighing just 0.38 lbs, these bolts are lightweight yet durable, making installation straightforward. Manufactured in the United States, you can trust the quality and reliability of these auto parts, providing you with peace of mind while enhancing your vehicle's performance.

What We Like
Designed for Chevy vehicles
Compact and easy to store
Lightweight and durable
Reliable US manufacturing
#TOP 3

Eisenwaren2000 M6 x 30 mm Round Head Screws

M6 X 30 mm
Eisenwaren2000 M6 x 30 mm Round Head Screws Cover
Eisenwaren2000 Round head screws with square neck M6 x 30 mm (10 pieces) - carriage bolts DIN 603 - ISO 8677 round head screws - threaded screws - full thread - stainless steel A2 - rustproof

The Eisenwaren2000 Round Head Screws are designed with a full thread, providing a secure grip from the head to the end of the bolt. With a diameter of M6 and a length of 30 mm, they are suitable for a variety of applications where strong fastening is required. Made from stainless steel A2, these screws are rustproof, ensuring durability and longevity even in challenging environments. Each box contains 10 carriage bolts, offering you enough quantity for multiple projects, making your tasks easier and more efficient.

What We Like
Rustproof stainless steel material
Full thread for secure grip
Standardised dimensions for compatibility
Convenient pack of 10 screws
#TOP 4

M6 x 120 Carriage Bolts Pack of 6

202000603-A2-M6120120
Full thread
M6x120/120
M6 x 120 Carriage Bolts Pack of 6 Cover
Carriage Bolts M6 x 120/120 Pack of 6 Round-Head Screws with Square Neck DIN 603 A2 Stainless Steel

The M6 Carriage Bolts are expertly designed round-head screws made from high-quality A2 stainless steel. With a diameter of 6.0 mm and a length of 120 mm, these bolts provide full thread for enhanced gripping power. Their rust-proof material ensures durability, making them ideal for outdoor applications. Supplied in a convenient pack of six, you will have plenty for your projects, saving you time and hassle when you need reliable fixing solutions.

What We Like
Rust-proof stainless steel
Full thread for strong grip
Convenient pack of six
High-quality professional use
#TOP 5

Suki Japy Bolts Round Head Square Collar Set

UNGROL
6112011
Silver
Suki Japy Bolts Round Head Square Collar Set Cover
Suki Japy 6112011 Bolts Round Head Square Collar/TRCC/Zinc-Plated Steel M 5 x 40 Set of 50

The Suki Japy Bolts Set features a square collar that fits neatly under the head, ensuring a secure fit in wood blocks as you rotate the screw. This design prevents the screw from loosening, allowing you to easily close the nut with a key for added security. The smooth face of the bolt allows for easy removal from the outside, enhancing safety during disassembly. With a partial thread design, these bolts provide versatility for various applications, making them a practical choice for your projects.

What We Like
Secure square collar design
Easy nut closure with key
Smooth face for easy removal
Partial thread for versatility
#TOP 6

Xiedeai Crosshead Wood Screws - M3 to M6

XHDWnutse055-M6x30xdafba
Silver
M6x30(10pcs)
Xiedeai Crosshead Wood Screws - M3 to M6 Cover
Xiedeai Crosshead Wood Screws Fasteners - Round Mushroom Head Self-Tapping Pointed Tail Stainless Steel Screws M3 M4 M5 M6

The Xiedeai Wood Screws are designed for efficient installation, featuring a standard cross slot that minimises slipping during use. You can quickly install these screws using standard tools, making your DIY projects easier. Crafted from environmentally friendly materials, these screws are both durable and non-toxic. Available in various sizes, you can easily find the right fit for your woodworking tasks. Additionally, the deep thread design ensures excellent retention in wood and man-made materials, preventing them from peeling off.

What We Like
Easy installation with cross slot
Durable, eco-friendly materials
Various sizes for versatility
Deep thread for secure retention
#TOP 7

M10 x 120 Round-Head Carriage Bolts Pack of 10

202000603-A2-M10120120
Full thread
M10x120/120
M10 x 120 Round-Head Carriage Bolts Pack of 10 Cover
Carriage Bolts M10 x 120/120 Pack of 10 Round-Head Screws with Square Neck DIN 603 A2 Stainless Steel

The Idt Trade Carriage Bolts are crafted from high-quality A2 stainless steel, ensuring durability and resistance to corrosion. Each bolt measures 10.0 mm in diameter and has a length of 120.0 mm without the head, providing a robust fastening solution. The full thread design allows for secure attachment and stability in various applications. With a round head and square neck, these bolts are ideal for use in woodworking and construction, delivering convenience and reliability for your projects.

What We Like
Durable stainless steel material
Full thread for secure fastening
Round head design
Pack of 10 for value
#TOP 8

Xiedeai Crosshead Wood Screws - Corrosion Resistant

XWTScrew02-M4x12xdafba
Black
M4*12(200pcs)
Xiedeai Crosshead Wood Screws - Corrosion Resistant Cover
Xiedeai Tools Crosshead Wood Screws - Round Head Mushroom Head Fasteners Carbon Steel Self-Drilling Screws M4 M5

The Xiedeai Wood Screws are made from sturdy, corrosion-resistant stainless steel, ensuring long-lasting durability for your projects. With 16 different sizes available, you can easily find the perfect fit for your DIY tasks or woodworking jobs. Their deep thread design provides excellent holding power, making them ideal for various woods and man-made materials without the risk of stripping. These functional fasteners are perfect for furniture and cabinet assembly, offering you reliable performance in every application.

What We Like
Corrosion-resistant stainless steel
16 size options available
Deep thread design for strength
Ideal for DIY and woodworking
#TOP 9

AGBERG M12 Stainless Steel Carriage Bolts

603-2-M12x30
M12 X 30 mm
AGBERG M12 Stainless Steel Carriage Bolts Cover
AGBERG M12 x 30 mm (Pack of 10) Carriage Bolts with Square Neck - Stainless Steel VA A2 V2A - Round Head Screws Full Thread Rustproof - DIN 603 - ISO 8677

The AGBERG Carriage Bolts are metric screws made from high-quality stainless steel A2-70, ensuring durability and rust resistance. With a diameter of M12 and a length of 30 mm, these screws feature a flat round head and full thread design, allowing for secure fastening in various applications. Their professional quality means they are suitable for both indoor and outdoor use, providing versatility for your projects. Whether you're working on DIY tasks or professional jobs, these screws offer reliability and strength.

What We Like
Rustproof stainless steel material
Suitable for indoor and outdoor use
Full thread design for secure fastening
Pack of 10 for convenience
Professional quality for various applications
#TOP 10

SECCARO M8 Carriage Bolt, 75 mm, Stainless Steel

B0BPMSNM2W
75mm
SECCARO M8 Carriage Bolt, 75 mm, Stainless Steel Cover
Carriage bolt M8 x 75 mm, stainless steel V2A VA A2, DIN 603 / ISO 8677, round head with square neck, full thread, 20 pieces

The SECCARO M8 Carriage Bolt is a reliable fastener designed for various applications. With a full M8 thread, it ensures a secure fit, making it ideal for heavy-duty projects. Measuring 75 mm in length, this bolt provides ample reach for connecting materials effectively. Made from high-quality stainless steel V2A, it offers excellent resistance to corrosion, which is particularly beneficial for outdoor or damp environments. The flat round head with a square neck design further enhances its stability, allowing for easy installation and a strong grip.

What We Like
Durable stainless steel construction
Full thread for secure fitting
Corrosion resistant for outdoor use
Flat round head design
Easy to install
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a step bolt?

Step Bolts. Step bolts are similar to carriage bolts in that they both have a square shoulder and a larger bearing surface. Step bolts, however, have a larger and lower-profile with a round head, creating a smooth surface. The larger heads also make it more difficult pull through soft materials.

2. What is a step head screw?

Step bolts are appropriately named because they are used as climbing steps on communication and utility poles and towers. They are also used to fasten wood to wood and wood to metal. ... Measure length from under the head to the threaded end of the bolt. Head diameter averages about 3.25 times the size of the bolt.

3. What is a shoulder bolt?

Shoulder bolts, or shoulder screws, have a long, unthreaded, cylindrical shoulder that allows for the rotation of attached parts like pulleys, gears, moving parts of engines and mechanical assemblies, and rolling wheels. These screws are also used to attach stripper plates.

4. What is the difference between a carriage bolt and a hex bolt?

Carriage bolts are a type of hexagon bolt specialised for use in woodworking, in particular, fastening metal to wood. Carriage bolts are designed with a domed head, which can prevent loosening from one side, an enlarged head shape also prevents the bolt from being pulled through a wooden construction.

Editor's Notes

During our step bolt research, we found 26 step bolt products and shortlisted 10 quality products. We collected and analyzed 5,014 customer reviews through our big data system to write the step bolts list. We found that most customers choose step bolts with an average price of £17.11.

The step bolts are available for purchase. We have researched hundreds of brands and picked the top brands of step bolts, including Idt Trade, Moroso, Eisenwaren2000, UNGROL, Xiedeai. The seller of top 1 product has received honest feedback from 20 consumers with an average rating of 4.8.

Written by
Corey Phillips Avatar

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.