Best Carbon Steel Hex Bolts in 2026

Daisy
Last Updated: Jul 17, 2026

At a Glance: Our Top Picks for Carbon Steel Hex Bolts

T-Track by Orange Aluminum, Tool Track Mounting Hardware for Equipment with Holes, 48 Inches
#TOP1
T-Track By Orange Aluminum, Tool Track Mounting Hardware
9.5
PM SCORE
T-Track by Orange Aluminum, Tool Track Mounting Hardware for Equipment with Holes, 24 Inches
#TOP2
T-Track By Orange Aluminum, Tool Track Mounting Hardware
9.5
PM SCORE
1/4-20 x 2-1/2" Hex Head Cap Screw Bolts, External Hex Drive, Stainless Steel 18-8, Full Thread, Bright Finish, Flat Point, Quantity 25 by Fastenere
#TOP3
1/4-20 X 2-1/2" Hex Head Cap Screw Bolts,
8.2
PM SCORE

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Summary of the Best Carbon Steel Hex Bolts of 2026

#TOP1

T-Track By Orange Aluminum, Tool Track Mounting Hardware For Equipment With Holes, 48 Inches

ORANGE ALUMINUM
OA7150-48"
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Orange Aluminum 5.30

Features

HEAVY-DUTY T-TRACK: Our industrial T-Track is the perfect heavy-duty equipment that allows you to slide in hex head bolts to mount, position, and hang clamps and fixtures. Use our T-Track hardware for a construction job or for tools in your garage for any DIY projects.

VERSATILE T-TRACK: This aluminum T-Track is ideal for positioning jigs, stops, and hold-downs on table saws. You can slide in 1/4"-20 hex head bolts to help you hold everything in place. Whether you need a table saw T-Track or a mounting jig for woodworking, this T-Track can handle it all.

HIGH-QUALITY HARDWARE: Each T-Track aluminum bar is made in the USA with an ultra-corrosive-resistant, architectural-grade alloy and a T5 temper aluminum construction. They are RoHS 3 and REACH compliant with a clear anodized finish, and they meet MIL-A-8625F and ASTM B221-14 specifications.

HOW TO USE: Reposition your clamps and fixtures by loosening the hex head bolt to slide it to a new position. Our T-Track metal bar measures 47/64" W x 1/2" H with different lengths available. Each T-Track features punched holes that measure 3" on center to accommodate #8 pan head screws.

ORANGE ALUMINUM: Since 2007, we have striven to be a national leader in the aluminum industry and in our community. Our OrangeCares initiative donates 1% of our revenue to charity organizations, and our dependable staff work to find solutions to fit your needs.

#TOP2

T-Track By Orange Aluminum, Tool Track Mounting Hardware For Equipment With Holes, 24 Inches

ORANGE ALUMINUM
OA7150-18"
24.00 X 1.00 X 1.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Orange Aluminum 5.45

Features

HEAVY-DUTY T-TRACK: Our industrial T-Track is the perfect heavy-duty equipment that allows you to slide in hex head bolts to mount, position, and hang clamps and fixtures. Use our T-Track hardware for a construction job or for tools in your garage for any DIY projects.

VERSATILE T-TRACK: This aluminum T-Track is ideal for positioning jigs, stops, and hold-downs on table saws. You can slide in 1/4"-20 hex head bolts to help you hold everything in place. Whether you need a table saw T-Track or a mounting jig for woodworking, this T-Track can handle it all.

HIGH-QUALITY HARDWARE: Each T-Track aluminum bar is made in the USA with an ultra-corrosive-resistant, architectural-grade alloy and a T5 temper aluminum construction. They are RoHS 3 and REACH compliant with a clear anodized finish, and they meet MIL-A-8625F and ASTM B221-14 specifications.

HOW TO USE: Reposition your clamps and fixtures by loosening the hex head bolt to slide it to a new position. Our T-Track metal bar measures 47/64" W x 1/2" H with different lengths available. Each T-Track features punched holes that measure 3" on center to accommodate #8 pan head screws.

ORANGE ALUMINUM: Since 2007, we have striven to be a national leader in the aluminum industry and in our community. Our OrangeCares initiative donates 1% of our revenue to charity organizations, and our dependable staff work to find solutions to fit your needs.

#TOP3

1/4-20 X 2-1/2" Hex Head Cap Screw Bolts, External Hex Drive, Stainless Steel 18-8, Full Thread, Bright Finish, Flat Point, Quantity 25 By Fastenere

FASTENERE
3SBT904C0208
3.00 X 1.00 X 9.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Inrox 9.68

Features

Thread Diameter 0.250"

Head Width Measured From Flat to Flat 7/16"

Head Height 11/64"

Hex Socket Drive 7/16"

FastenereⓇ brand stainless steel Fully Threaded Hex Bolts offer the corrosion resistance and strength that makes them the best choice for an application that is exposed to a wet or damp environment and will withstand the test of time

Wheel Accessories Parts Set Of 20 Chrome 12X1.5 Lug Bolts Cone Seat Acorn 17Mm Hex, 28 Mm Shank Length, M12X1.50 Thread Conical Wheel Lug Bolt (20 Lugs, Chrome, 12 1.5)

WHEEL ACCESSORIES PARTS
84K547-28
0.90 X 0.90 X 2.10 Inches
0.16 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Wheel Accessories Parts 9.80

Features

Set of 20 Lug Bolts 28mm Long 12x1.5 thread conical seat with 17mm Hex

Lug Bolts can be commonly Compatible with applications of many European cars

Chrome plated lug bolts have a long lasting, high luster finish. Every lug bolt is double nickel plated to surpass 48 hour salt spray testing.

Our lug bolts are forged, not cut from bar stock. Forging allows for better mechanical properties and consistent quality. Our threads are rolled (forged) onto the bolt, not cut like most of our competitors.

Our Lug Bolts are made of Carbon Steel and Heat Treated to 10.9 grade. Carbon Steel is an alloy known for its very good form-ability, comparatively high strength, and a very good surface finish

#TOP5

(25Pcs) Belmetric M12X1.25X40Mm Jis Hex Head Flange Bolt 17Mm Wrench, Class 10.9 Plated Yellow Zinc For Automobile, Motorcycle, And Mechanical Applications Bf12X1.25X40Ylw

BEL-METRIC
BF12X1.25X40YLW-25
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
BelMetric 5.58

Features

Flange bolts are fasteners with a hexagonal head for use with a wrench or a socket drive. Sometimes called Frame bolts, flange bolts are different from standard bolts as they are designed with a circular flange / skirt under the head that functions as a built-in washer, distributing force evenly across the surface to which it will be fastened. The flange also helps compensate for excess space in large or misaligned holes yeilding increased resistance to rotational loosening.

Made of Class 10.9 tempered medium carbon steel similar to US Grade 8 and possess strong wear resistance as well as high tensile strength. Mostly used for automotive and fastening applications such as steering and suspension parts, cylinder, and flywheels, and also for high strength mechanical applications and forged parts. The Yellow Zinc finish, aside from the golden aesthetic, provides a marginally better protection from rust and corrosion against water contact than clear zinc or black oxide.

M8 - M12 Diameter JIS (Japanese Industrial Standard) Flange bolts </b> have smaller head sizes than ISO and ANSI type bolts and are commonly used for truck, car, ATV, snowmobile, and motorcycle frames, exhaust, and for securing the outer casing protecting the engine and transmission. This type of bolt is suitable for any use that requires mounting surface protection.

It is important to make sure that when buying a nut to go along with this flange bolt, the steel class (hardness) of the nut is the same as that of the bolt for an optimal strength combination.

BelMetric has been in business for over 40 years providing customers with metric hardware & specialty automotive supplies. We offer an extensive variety of metric fasteners, metric nuts, metric bolts, Time-Sert kits and we stock hard-to-find items like metric brake line fittings, Norma clamps, stainless eye nuts and more.

Jrouth 360 Pcs M6-1.0 M8-1.25 Flange Hex Head Bolts Nuts Flat Lock Washers, Class 10.9 Alloy Steel Black Zinc Plated Metric Flanged Hex Screws, M6 X 12-30Mm And M8 X 16-30Mm Fully Threaded

JROUTH
FL-360PCS
3.96 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
JROUTH 8.26

Features

Flanged Hex Bolts Specification: M6 Bolts Pitch 1.0 mm. Thread Diameter 6 mm; Screw Length include: 12mm/16mm/20mm/25mm/30mm. M8 Bolts Pitch 1.25 mm. Thread Diameter 8 mm; Screw Length include: 16mm/20mm/25mm/30mm.

Flange Design: There have a flange on the bottom of the bolts head, the flange design distributes the load evenly, reducing stress concentration and extending the service life of the bolts. Hex head design of these bolts provides stability and prevents loosening, ensuring safety and reliability.

10.9 Class Alloy Steel: High quality 10.9 grade alloy steel, great strength and corrosion resistance to some extent to make fasteners last. Flanged Hex Bolts can withstand heavy loads and provide stability and reliability in any field that requires high strength and stability.

Package Included: Flanged bolts kit, including M8-1.25 x 16/20/25/30mm (matching with nuts, flat and spring washers) and M6-1.0 x 12/16/20/25/30mm bolts (matching with nuts, flat and spring washers). Total 360 pcs hex bolts nuts washers assortment kit, meet various needs.

Wide Range of Uses: Flange hex head bolt kits are ideal for those who need high strength screws for mechanical equipment, automotive, industrial equipment and construction structures. These bolts are an important part of any project that requires stability and security.(If there is any damage during transportation, please contact us promptly. we will give you a professional service and reply you within 24 hours. We will do our best to provide you a pleasure shopping experience. )

#TOP7

(15Pcs) Belmetric M10X1.25X16Mm Jis Hex Head Flange Bolt 14Mm Wrench, Class 10.9 Plated Zinc For Automobile, Motorcycle, And Mechanical Applications Bf10X1.25X16Clz

BEL-METRIC
BF10X1.25X16CLZ-15
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
BelMetric 5.53

Features

Flange bolts are fully-threaded fasteners with a hexagonal head for use with a wrench or a socket drive. Sometimes called Frame bolts, flange bolts are different from standard bolts as they are designed with a circular flange or a skirt under the head that functions as a built-in washer and distributes the force evenly across the surface to which it will be fastened. The flange helps compensate for excess space in large or misaligned holes yielding increased resistance to rotational loosening.

Made of Class 10.9 tempered medium carbon steel similar to US Grade 8 and possess strong wear resistance as well as high tensile strength. Mostly used for automotive and fastening applications such as steering and suspension parts, cylinder, and flywheels, and also for high strength mechanical applications and forged parts. The Zinc finish provides a marginally better protection from rust and corrosion against water contact than clear zinc or black oxide.

<b> M8 - M12 Diameter JIS (Japanese Industrial Standard) Flange bolts </b> have smaller head sizes than ISO and ANSI type bolts and are commonly used for truck, car, ATV, snowmobile, and motorcycle frames, exhaust, and for securing the outer casing protecting the engine and transmission. This type of bolt is suitable for any use that requires mounting surface protection.

It is important to make sure that when buying a nut to go along with this flange bolt, the steel class (hardness) of the nut is the same as that of the bolt for an optimal strength combination.

BelMetric has been in business for over 40 years providing customers with metric hardware & specialty automotive supplies. We offer an extensive variety of metric fasteners, metric nuts, metric bolts, Time-Sert kits and we stock hard-to-find items like metric brake line fittings, Norma clamps, stainless eye nuts and more.

Top 10 hex bolts Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Bel-Metric 2
Orange Aluminum 2
Fastenere 1
Jrouth 1
Wheel Accessories Parts 1

Top 10 hex bolts Brands Pie Chart


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