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Hex Bolts

Hex head bolts to ASME B18.2.1 in UNC and UNF threads, from #4 up to 1-1/2 in. The range covers Grade 5 and Grade 8 steel (10B21, 35CrMo), 304 and 316 stainless in A2-70 / A4-80, and titanium Grades 2–5, with plain, zinc plated, yellow zinc, black oxide, black zinc and hot-dip galvanized finishes. Structural, machinery and automotive specifications including ASTM A325 and A193 are supported — send your standard, size and quantity for a quote.

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Hex Head Bolt — G8 YelZn Hex Bolt UNC 1/4-20 3/8-16 1/2-13 5/8-11 B7 C/Steel HalfThd ASME Heavy amse 18.2.1
1/4-203/8-161/2-135/8-11

Carbon Steel Hex Head Bolt Grade 8 UNC ASME B18.2.1 Yellow Zinc

$0.00
Carbon Steel Hex Head Bolt Grade 8 UNC ASME B18.2.1 Yellow Zinc Material: Carbon Steel Grade / Class: Grade 8 Standards: ASME B18.2.1 Thread Series: UNC Finish / Coating: Yellow...
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Hex Head Bolt — Grade8 YelZn Hex Bolt UNF 3/8-24 1/2-20 5/8-18 C.Steel Half Thread ASME B18.2.1 Industrial Asme 18.2.1 1-1/2-6 1-1/4-8 Unc Unf
3/8-241/2-205/8-181-1/2-61-1/4-8

Grade8 YelZn Hex Bolt UNF C.Steel Half Thread ASME B18.2.1 Industrial Asme 18.2.1 Unc Unf

$0.00
Grade8 YelZn Hex Bolt UNF C.Steel Half Thread ASME B18.2.1 Industrial Asme 18.2.1 Unc Unf Material: Carbon Steel Grade / Class: Grade 8 Standards: ASME B18.2.1 Thread Series: UNC, UNF...
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Hex Head Bolt — Grade 8 Yellow Zinc Plated Hex Head Bolt UNC Coarse Thread 1/4-20 3/8-16 1/2-13 5/8-11 Carbon Steel ASME B18.2.1
1/4-203/8-161/2-135/8-11

Grade 8 Yellow Zinc Plated Hex Head Bolt UNC Coarse Thread Carbon Steel ASME B18.2.1

$0.00
Grade 8 Yellow Zinc Plated Hex Head Bolt UNC Coarse Thread Carbon Steel ASME B18.2.1 Material: Carbon Steel Grade / Class: Grade 8 Standards: ASME B18.2.1 Thread Series: UNC Finish...
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Hex Head Bolt — Yellow Zinc G8 Hex Bolt UNC 1/4-20 5/16-18 3/8-16 1/2-13 5/8-11 C.Steel 1/2Thd ASME Carbon Steel ASME B18.2.1
1/4-205/16-183/8-161/2-135/8-11

Yellow Zinc G8 Hex Bolt UNC C.Steel 1/2Thd ASME Carbon Steel ASME B18.2.1

$0.00
Yellow Zinc G8 Hex Bolt UNC C.Steel 1/2Thd ASME Carbon Steel ASME B18.2.1 Material: Carbon Steel Grade / Class: Grade 8 Standards: ASME B18.2.1 Thread Series: UNC Finish / Coating:...
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Hex Head Bolt — 3/4-16 UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel Large Diameter Fine Thread Hex Bolt
3/4-16

UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel Large Diameter Fine Thread Hex Bolt

$0.00
UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel Large Diameter Fine Thread Hex Bolt Material: Carbon Steel Grade / Class: Grade 5 Thread Series: UNF Finish / Coating:...
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Hex Head Bolt — 7/8-14 UNF Hexagon Head Bolt Grade 5 Zinc Plated Carbon Steel Heavy Duty Fine Thread Hex Bolt
7/8-14

UNF Hexagon Head Bolt Grade 5 Zinc Plated Carbon Steel Heavy Duty Fine Thread Hex Bolt

$0.00
UNF Hexagon Head Bolt Grade 5 Zinc Plated Carbon Steel Heavy Duty Fine Thread Hex Bolt Material: Carbon Steel Grade / Class: Grade 5 Thread Series: UNF Finish / Coating:...
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Hex Head Bolt — Grade 5 Carbon Steel Hex Head Bolt UNF 3/4-16 7/8-14 Zinc Plated for High Vibration Applications
3/4-167/8-14

Grade 5 Carbon Steel Hex Head Bolt UNF Zinc Plated for High Vibration Applications

$0.00
Grade 5 Carbon Steel Hex Head Bolt UNF Zinc Plated for High Vibration Applications Material: Carbon Steel Grade / Class: Grade 5 Thread Series: UNF Finish / Coating: Zinc Plated...
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Hex Head Bolt — 1/2-20 UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel High Strength Fine Thread Hexagon Bolt
1/2-20

UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel High Strength Fine Thread Hexagon Bolt

$0.00
UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel High Strength Fine Thread Hexagon Bolt Material: Carbon Steel Grade / Class: Grade 5 Thread Series: UNF Finish / Coating:...
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Hex Head Bolt — Zinc Plated Carbon Steel Hexagon Head Bolt UNF 3/8-24 7/16-20 1/2-20 Grade 5 Fine Thread Hex Bolt Bulk
3/8-247/16-201/2-20

Zinc Plated Carbon Steel Hexagon Head Bolt UNF Grade 5 Fine Thread Hex Bolt Bulk

$0.00
Zinc Plated Carbon Steel Hexagon Head Bolt UNF Grade 5 Fine Thread Hex Bolt Bulk Material: Carbon Steel Grade / Class: Grade 5 Thread Series: UNF Finish / Coating: Zinc...
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Hex Head Bolt — 1/4-28 3/8-24 1/2-20 7/16-20 UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel Fine Thread Hex Bolt
1/4-283/8-241/2-207/16-20

UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel Fine Thread Hex Bolt

$0.00
UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel Fine Thread Hex Bolt Material: Carbon Steel Grade / Class: Grade 5 Thread Series: UNF Finish / Coating: Zinc Plated...
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Hex Head Bolt — 3/8-16 UNC Hexagon Head Bolt Grade 5 Zinc Plated Carbon Steel Fine Thread Hex Bolt for Machinery
3/8-16

UNC Hexagon Head Bolt Grade 5 Zinc Plated Carbon Steel Fine Thread Hex Bolt for Machinery

$0.00
UNC Hexagon Head Bolt Grade 5 Zinc Plated Carbon Steel Fine Thread Hex Bolt for Machinery Material: Carbon Steel Grade / Class: Grade 5 Thread Series: UNC Finish / Coating:...
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Hex Head Bolt — Clear Zinc Plated Hex Bolt UNF 1/4-28 3/8-24 1/2-20 3/4-16 Grade 5 Carbon Steel Hexagon Head Bolt
1/4-283/8-241/2-203/4-16

Clear Zinc Plated Hex Bolt UNF Grade 5 Carbon Steel Hexagon Head Bolt

$0.00
Clear Zinc Plated Hex Bolt UNF Grade 5 Carbon Steel Hexagon Head Bolt Material: Carbon Steel Grade / Class: Grade 5 Thread Series: UNF Finish / Coating: Zinc Plated
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Hex Head Bolt — Bright Zinc Plated Hexagon Head Bolt UNF 1/2-20 3/4-16 7/8-14 Grade 5 Carbon Steel Fine Thread Hex Bolt
1/2-203/4-167/8-14

Bright Zinc Plated Hexagon Head Bolt UNF Grade 5 Carbon Steel Fine Thread Hex Bolt

$0.00
Bright Zinc Plated Hexagon Head Bolt UNF Grade 5 Carbon Steel Fine Thread Hex Bolt Material: Carbon Steel Grade / Class: Grade 5 Thread Series: UNF Finish / Coating: Zinc...
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Hex Head Bolt — 1/2-20 UNF X 2" Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 Coarse-Fine Thread Hex Bolt
1/2-20

UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 Coarse-Fine Thread Hex Bolt

$0.00
UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 Coarse-Fine Thread Hex Bolt Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF...
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Hex Head Bolt — Zinc Plated Carbon Steel Hexagon Head Bolt UNF 3/8-24 1/2-20 3/4-16 7/8-14 Grade 5 ASME B18.2.1
3/8-241/2-203/4-167/8-14

Zinc Plated Carbon Steel Hexagon Head Bolt UNF Grade 5 ASME B18.2.1

$0.00
Zinc Plated Carbon Steel Hexagon Head Bolt UNF Grade 5 ASME B18.2.1 Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF Finish / Coating: Zinc...
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Hex Head Bolt — Carbon Steel Grade 5 Hex Bolt UNF 1/2-20 3/4-16 7/8-14 Zinc Plated ASME B18.2.1 Hexagon Head Bolt
1/2-203/4-167/8-14

Carbon Steel Grade 5 Hex Bolt UNF Zinc Plated ASME B18.2.1 Hexagon Head Bolt

$0.00
Carbon Steel Grade 5 Hex Bolt UNF Zinc Plated ASME B18.2.1 Hexagon Head Bolt Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF Finish /...
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Hex Head Bolt — 7/16-20 UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 Precision Hex Bolt
7/16-20

UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 Precision Hex Bolt

$0.00
UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 Precision Hex Bolt Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF Finish...
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Hex Head Bolt — High Strength Grade 5 UNF Hex Bolt Zinc Plated Carbon Steel Meet ASME B18.2.1 Standard 3/8-24 1/2-20 3/4-16
3/8-241/2-203/4-16

High Strength Grade 5 UNF Hex Bolt Zinc Plated Carbon Steel Meet ASME B18.2.1 Standard

$0.00
High Strength Grade 5 UNF Hex Bolt Zinc Plated Carbon Steel Meet ASME B18.2.1 Standard Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF Finish...
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Hex Head Bolt — Precision UNF Hexagon Head Bolt Grade 5 Carbon Steel Zinc Plated ASME B18.2.1 1/2-20 3/4-16 7/8-14
1/2-203/4-167/8-14

Precision UNF Hexagon Head Bolt Grade 5 Carbon Steel Zinc Plated ASME B18.2.1

$0.00
Precision UNF Hexagon Head Bolt Grade 5 Carbon Steel Zinc Plated ASME B18.2.1 Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF Finish / Coating:...
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Hex Head Bolt — Grade 5 Hex Head Bolt UNF Fine Thread 1/4-28 to 7/8-14 Zinc Plated Carbon Steel ASME B18.2.1 Hexagon Bolt
1/4-287/8-14

Grade 5 Hex Head Bolt UNF Fine Thread Zinc Plated Carbon Steel ASME B18.2.1 Hexagon Bolt

$0.00
Grade 5 Hex Head Bolt UNF Fine Thread Zinc Plated Carbon Steel ASME B18.2.1 Hexagon Bolt Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF...
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Hex Head Bolt — ASME B18.2.1 Grade 5 Hexagon Head Bolt UNF 1/4-28 3/8-24 1/2-20 3/4-16 7/8-14 7/16-20 Zinc Plated Carbon Steel Hex Bolt
1/4-283/8-241/2-203/4-167/8-147/16-20

ASME B18.2.1 Grade 5 Hexagon Head Bolt UNF Zinc Plated Carbon Steel Hex Bolt

$0.00
ASME B18.2.1 Grade 5 Hexagon Head Bolt UNF Zinc Plated Carbon Steel Hex Bolt Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF Finish /...
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Hex Head Bolt — UNF Fine Thread Hex Head Bolt ASME B18.2.1 Grade 5 Zinc Plated Carbon Steel Sizes 1/4-28 to 7/8-14
1/4-287/8-14

UNF Fine Thread Hex Head Bolt ASME B18.2.1 Grade 5 Zinc Plated Carbon Steel Sizes

$0.00
UNF Fine Thread Hex Head Bolt ASME B18.2.1 Grade 5 Zinc Plated Carbon Steel Sizes Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF Finish...
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Hex Head Bolt — 1/4-20 UNC Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 Fine Thread Hexagon Bolt
1/4-20

UNC Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 Fine Thread Hexagon Bolt

$0.00
UNC Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 Fine Thread Hexagon Bolt Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNC...
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Hex Head Bolt — 5/8-18 UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 (Add-on Size) Hex Bolt
5/8-18

UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 (Add-on Size) Hex Bolt

$0.00
UNF Hex Head Bolt Grade 5 Zinc Plated Carbon Steel ASME B18.2.1 (Add-on Size) Hex Bolt Material: Carbon Steel Grade / Class: Grade 5 Standards: ASME B18.2.1 Thread Series: UNF...
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Buying Guide

Common Questions

What information do you need to quote this series?

Share the standard, thread size, length, material, grade, finish and quantity. For non-standard parts, a drawing or sample helps us confirm production details faster.

Can you make sizes or materials not listed here?

Yes. We manufacture to drawing and to sample. Send your specification through the RFQ form and we will confirm feasibility, MOQ and lead time.

What inspection and material documents can you provide?

Material test certificates, dimensional inspection reports and coating reports are available on request, depending on the material and finish of your order.

What is the MOQ, and can I get samples first?

MOQ depends on size, material and finish — standard catalog sizes start lower, and custom parts are quoted per drawing. Samples are available for most standard items; mention sampling when you send the RFQ and we will confirm.

How long does production and delivery take?

Lead time is confirmed per order with your quotation. Coated and custom parts need additional production and surface-treatment time. Share your target delivery date in the RFQ and we will confirm whether we can meet it before you commit.

Can't find the exact spec?

We manufacture standard and custom fasteners to order. Tell us the size, material, grade, finish and quantity — or send your drawing — and we will confirm MOQ and lead time.

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